Showing posts with label knee replacement. Show all posts
Showing posts with label knee replacement. Show all posts

Friday, June 29, 2018

Lipedema: My Story


June is Lipedema Awareness Month. In lipedema, a fat storage disorder, an abnormal accumulation of fat develops in the legs and lower body, sometimes extending to the arms and other body parts as well. It is sometimes known as "painful fat syndrome" or "big legs syndrome." Although no one knows its true incidence, it has been estimated to affect up to 11% of women.

To raise awareness about this condition, we have been doing an periodic series about lipedema. Here is what we have covered so far:
Today, I share some of my own story of dealing with lipedema and how it has influenced other health challenges.

My Story

Lipedema Posters from LASS, www.lass.org.au,
Lipoedema Australia Support Society
Like the woman above, I too have lipedema and went undiagnosed for many years, which probably made my lipedema worse. This is why I try to raise awareness of this condition. Far too many people of size have lipedema and aren't aware of it, thus missing out on possible treatments for it. I was one of them.

I only learned about lipedema when I was around 50 ─ but I found out about it from the internet, not from any doctor. I fit the classic profile of lipedema perfectly, with all the symptoms and nearly all the complications of it, but no care provider had EVER mentioned lipedema to me. No care provider had ever once thought to look more deeply into my inability to lose weight long-term or to question whether my abnormally heavy legs might mean something. They just chalked it up to bad habits and tried to pressure me to continue to diet, despite its many past failures.

Once I learned about lipedema, all kinds of light bulbs went off in my head. A-ha! So that's why I had that funny shape! So that's why I gained so much weight as a young adult, despite workng incredibly hard to try and lose weight. So that's why I had all those symptoms!

But even once I learned about lipedema, I didn't do much about it. I didn't think that there were many treatment options, so I didn't really bring it up with my care providers. I was more focused on my PCOS (Polycystic Ovarian Syndrome) and hypothyroidism, both of which seemed more treatable. But while treating those did help my overall health, it didn't address my lipedema.

When I finally did bring up lipedema at the doctor's, I had to educate my provider about it because she had never even HEARD of it. Once she read the articles I gave her, she agreed I definitely fit the classic pattern but was at a loss for what to do about it. It's in my medical record now as a sub-note under "obesity" but because there is no official international diagnostic code for lipedema yet (despite it having been known about since 1940) that's all she can really do. Lack of insurance coverage for lipedema treatment is a major barrier and the first step is an official diagnostic code for it.

I'm in Stage 3 lipedema, with the start of lipo-lymphedema (stage 4). I have the Type III classic "pantaloon" shape of my legs, complete with the shouldered ankles and fat pads by the knees, and the lipedema is now in my abdomen and my upper arms as well. I look at lot like the lady in the poster above, but with more cankles and less knees.

Sadly, my eldest daughter seems to have inherited my lipedema; she had the big gain in early adulthood too and is already Stage 2. I'm worried about what will happen with her in the future. On the other hand, my youngest daughter shows no signs of lipedema at all, so I'm hoping she avoided this genetic minefield. Time will tell as she's just a young teenager now.

In the hope that it will help others with lipedema, here is my lipedema story. I've tried to be detailed in case others find those details helpful.

Childhood

My childhood shape was very much like the pear above, except with thicker thighs. My lower legs and arms were mostly unaffected. That came later.

I am adopted, so I have only limited family medical history available to me. From what little I do know, it doesn't seem like my birth mother had significant lipedema at the time I was born. She did have other medical issues but apparently not lipedema. I would like to know if there was any history of large legs on either side of my biological family but so far have not been able to discover this information.

I was always "chubby" and pear-shaped to some degree as a child, even while eating the same healthy foods as my thin adoptive family. Although I am not athletic, I still rode my bike, played in the woods, swam competitively, took several years of dance and gymnastics, and played football and baseball with the neighborhood boys. While I preferred reading to running, I was a reasonably active kid. My chubbiness had nothing to do with poor eating habits or lack of exercise.

When I took gymnastics, the teacher was quite amazed at how limber I was, especially my back. I was much more limber than the other girls. I was able to do a no-handed back bend and pick up a cup off the floor with my teeth; no one else could. Now I realize that this was probably a sign of hypermobility, something many people with lipedema have. I was not double-jointed, but I was definitely more limber than most by far.

My adoptive mother was always bothered by my weight. She felt it was a negative reflection on her, and people would assume she was feeding me junk food. Being naturally quite thin, she simply didn't understand how I could be chubby, and she was afraid of how it would affect me. She was of the generation where a girl's looks were everything; she was afraid I'd never find a man, which in her worldview was the real measure of a woman's worth.

She wanted to put me on a diet at 5 years old but the doctor wouldn't let her. He just encouraged her to make me be as active as possible, so she was always booting me out the door to play. Didn't make me thin. When I was nine, we moved to a new town and the new doctor agreed to put me on a diet. It was a "healthy" diet, nothing radical, just mildly hypocaloric. I did lose some weight for a little while ─ until it came back, as it usually does. (And not because I slacked off.) So then I dieted again, and again the weight came back. So then we did it again, only this time with a lower calorie count, etc.

Thus began my many years of yo-yo dieting. I dieted off and on (mostly on) from the age of 9. Generally speaking, each diet was more rigorous as I got more and more desperate to lose weight.

Teens

Image by Sarah Bishop
Once I hit puberty at about 13, my weight increased quite a bit. Most of the gain was in my hips and legs; I became even more pear-shaped. I was smaller on top than on the bottom, but I did not have the extreme disproportion that some lipedema women have.

I had great difficulty buying regular pants because my waist was so much smaller than my hips. This is typical of women with lipedema. My mom made many of my clothes for me when I was younger in order to give me elastic waists. It was the only way to get pants that didn't gap hugely at the waist.

I wasn't extremely fat, though I was certainly perceived as fat by those around me. I can remember people staring at or remarking on my legs as a teen. One boy who was interested in me said, "Well, now I can see why you don't wear shorts!" (Nope, he most certainly did not become my boyfriend.)

When I was 13, my adoptive father had a heart attack; heart problems ran strongly in his family. Although we had always eaten healthy, our diet got even more rigid after that. We ate low-fat, semi-vegetarian, and rarely had sugar ─ yet I still gained weight.

So I continued to diet off and on via calorie restriction and carb restriction. My legs remained heavy even when the rest of me lost weight, but frankly I never become a "normal" size no matter what I did, and the weight always came back with extra. 

I started skipping periods occasionally due to PCOS but the PCOS went undiagnosed. Around age 15-16 I did some serious time with Weight Watchers (WW) and did lose a bit of weight, but not not nearly what was expected for the amount of time I was on the program and I never got to a "normal" BMI. Despite the weight loss, I still had a definite pear-shape and my periods stayed irregular.

I remember being treated suspiciously by the Weight Watcher leaders because I wasn't losing "enough" weight; they suspected me of lying about my intake. But I was very strict and carried a scale with me everywhere to weigh my food or carried my own healthy snacks with me when I went out in an effort to strictly control my calories. Still, the weight came back. Weight Watcher weigh-ins became a nightmare. I grew to really loathe weigh-ins because of the judgment I received at them.

I got more and more desperate and began to develop some eating-disordered behaviors ─ nothing major, but still not healthy, mainly trying to manipulate weigh-in results. I eventually quit WW in disgust because I wasn't losing weight anymore despite my most dedicated efforts, and because I was concerned the neurotic food behaviors and attitudes of the people at meetings were encouraging me to become more eating-disordered. Far from being "healthy," it felt like a very unhealthy place to be. I also tried Overeaters Anonymous, but was even more put off by that program because the extreme eating behaviors the other members described did not fit my experience. Again, it felt like a very emotionally unhealthy place to be.

Late Teens and Early 20s



During my senior year of high school, I started gaining weight like crazy ─ all while dieting and getting plenty of exercise, including biking, cross-country skiing, and even climbing a mountain, but none of that made any difference.

The weight gain accelerated in college. I took a Fitness Class in an effort to stem the weight gain. I was jogging, running stairs, biking, swimming, and lifting weights. I remember the coach criticizing my "HUGE legs" (his words, with that amount of emphasis). I gained 25 lbs. in a semester during that Fitness class, despite being on Weight Watchers again and getting tremendous amounts of exercise during the class. I'm pretty sure the coach thought I was binge eating in a closet somewhere but I wasn't. I was simply in the middle of a significant lipedema "flare."

My parents were horrified by my large weight gain. I moved out of the dorm so I could avoid "fattening dorm food" (even though my dorm-mates ate the same food and were skinny). I saw a number of doctors over the years, trying to figure out the weight gain, but found no answers. They noted that my thyroid TSH labs were borderline but because they were still within the "normal" range, they basically just told me to eat less and exercise more.

Although I had always been a healthy eater as a kid, I started developing more unhealthy eating patterns in response to all of this. I began alternating between restrictive diets and overindulging in "unhealthy" foods (though I was never a true binge eater). In desperation, I went back to WW several times during my college years, but found little weight loss and lots of food neurosis. Again, I manipulated for weigh-ins. I was concerned about what I was starting to do but felt such pressure at those weigh-ins. The basic food plan wasn't bad but the attitudes around food and weight in the WW meetings were extremely toxic. I quit to save my own sanity and because I was concerned I was headed for an eating disorder. I saw women around me in college with true eating disorders and how difficult that was. I realized I was headed in that direction if I didn't stop, so I did.

Over the course of several years, despite all the dieting and exercise, I gained about 100 pounds total, most of it in the lower body. I had a terrible time finding clothes to wear; there was no internet then and my college was in a fairly small town. Chain stores and Goodwill had nothing in my size. I lived in men's overalls because that's all I could find to fit.

It was hard to be positive about my body, but I was fortunate to have a boyfriend who loved me as I was. Being away from my mother's well-meaning but neurotic weight focus also helped boost my self-esteem and confidence. I developed a can-do attitude, worked hard for top grades, and didn't let me weight keep me from what I wanted to do.

Still, I was worried what my weight would do to my health. In desperation, eventually I joined a special medical weight loss clinic, following a low-calorie ketogenic diet. I lived on 500 CALORIES A DAY, far below starvation levels, in ketosis, for SIX MONTHS during my senior year of college. (This is slightly lower than the caloric intake of the Dutch famine victims in World War II, for about the same amount of time, and the Dutch famine is considered a severe famine exposure). I lost 50 lbs., but still had fat legs, hips, and arms, and never got remotely close to a "normal" size. By the end of the 6 months, I slowly began gaining weight back ─ while on 500 calories a day.  And I still wasn't thin enough to suit my mother.

That starvation diet was a real wake-up call. I saw how foolish such an extreme approach was and how awful I felt, so I stopped the program. That program made me realize that something else HAD to be going on physiologically and that it wasn't just about my intake and output. I quit blaming myself. I went back to eating normally. It didn't take long before I returned to my original weight plus a little more ─ but with much more abdominal fat than I'd had before. That's when the lipedema really began affecting my abdomen too.

In hindsight, I think I had a "perfect storm" combination of PCOS, hypothyroidism, and lipedema all hit me at once, and this triple-whammy caused the massive weight gain. I had gained about 100 lbs. despite multiple bouts of Weight Watchers, fitness classes, a starvation diet, and a million other things to try to stop the weight gain. Every doctor I consulted told me I just needed to eat less and exercise more; that it was just a matter of adjusting the math of intake vs. output, and having strong willpower. One endocrinologist I went to for thyroid testing told me that I was "just looking for an excuse for being fat."

I knew there had to be more to the story but eventually gave up going to doctors because my concerns weren't taken seriously and I was tired of the weight harassment. I just tried to live a reasonable life and accepted that I would always be fat.

Mid-20s to Early 30s


Eventually my weight stabilized in my mid-20s. I stopped dieting, which helped stop the weight yo-yos and probably also stopped a full-blown eating disorder from developing. Leaving dieting certainly boosted my self-esteem and improved my mental health!

Of course, I still encountered weight bias in my career and in the world. I was "morbidly obese" and people didn't hesitate to let me know it. I had a boss verbally pressure me to lose weight, and it came up in my job performance reviews...but only unofficially, so he didn't get into trouble. Another boss looked for a replacement for me because I wasn't "pretty enough" (code for too fat), as if physical appearance had anything to do with competency in my field. Fortunately I was very skilled and kept the job.

It was frustrating to have all kinds of assumptions made about me based on my size, but I didn't let it hold me back. I got married, achieved in my career, traveled a lot, acted on stage, and participated in many fun activities. I lived my life and was happy.

In my late 20s, I finally found a doctor who was willing to consider my symptoms of subclinical hypothyroidism. We did a trial of thyroid meds, which improved my life greatly. I stopped skipping periods and my skin issues improved. I had other PCOS symptoms that didn't abate but the thyroid meds blunted the worst of them. I felt like a reasonably normal human being again. I felt SO much better once I started on the thyroid meds, even though it made little difference to my weight or body size.

My lipedema did worsen in my 20s. My legs got larger, my arms got larger, and weirdly, my bust also got suddenly larger despite a stable weight. By my late 20s, it was quite hard to find clothes that worked for my body (large bust, small waist, very large hips).

My legs were pretty heavy by my 30s; I couldn't wear boots or knee-high socks anymore. It was hard to find clothes that fit me, even with big-city clothing stores. Still, my legs didn't interfere with my life too much. I had no mobility issues and I was able to be active. I wasn't any kind of athlete but took periodic aerobics or yoga classes and did a lot of folk dancing, walking, dancing in plays, and just generally enjoyed my life.

Mid-30s and early 40s; Four Pregnancies

Poster from LASS (see above)
My husband and I decided to start a family in our 30s. I was lucky to have the ovulatory PCOS phenotype, so once my thyroid issues were treated, I never had any trouble with my cycles again and had no trouble getting pregnant, even into my 40s. I'm so glad we waited to try until after my thyroid issues were addressed!

I had four pregnancies between age 33 and 43, resulting in 2 girls and 2 boys. The first pregnancy was rough because there was no information on pregnancy at a larger size available then, and I encountered a lot of size bias in that pregnancy. I had a nightmare cesarean after a long hard induction and developed PTSD. Breastfeeding was rough at first because I got poor advice. Afterwards, I spent a lot of time educating myself about pregnancy and breastfeeding so I wouldn't go through anything like that again, and started my website to help other large moms get information and empowerment.

I had much better experiences with my later pregnancies. I did have another cesarean after a long hard labor with #2, but in some ways it was healing, even if it wasn't the birth I wanted. With my last 2 children, I had VBACs (Vaginal Births After Cesarean), and they went a long way towards restoring my faith in my body. So did breastfeeding all four of my children long-term.

Some women with lipedema find that pregnancy and birth worsen the lipedema. For the most part, my experiences were normal and I didn't experience the severe issues that some women with lipedema do in pregnancy. I didn't gain much weight and I didn't develop any serious complications.

However, I did gain more lipedemic fat in my abdomen with each pregnancy and I really started to feel the fat nodules under the skin there. This wasn't the result of pregnancy weight gain; I gained less than the weight of my babies with each pregnancy and ended all four pregnancies at about the same weight I started them. But despite being the same weight, I had quite a bit more abdominal fat afterwards. Classic lipedema.

Some women with lipedema find that pregnancy and birth result in secondary lymphedema. I did find I experienced severe swelling after the births of #1 and #4, but not the others. Why I had it with only some births but not others is not clear but it's interesting that I only experienced it with my daughters. Of course, birth interventions can also influence edema. It's my opinion that it takes a combination of factors to cause problems.

One major negative thing was that I had a LOT of back pain and joint issues (pubic symphysis and sacro-iliac joint issues) in my pregnancies. I had a lot of pain until I finally started seeing a chiropractor in my 3rd pregnancy. Since lipedema is associated with joint laxity and hypermobility, that (plus my history of car accidents) may well have been the source of my joint issues.

Seeing a chiropractor highly trained in pregnancy starting with #3 was extremely helpful in getting my back and pelvis aligned. It reduced my discomfort tremendously and helped the baby be in an easier position for birth. I strongly believe it was the reason I was able to have normal vaginal births (VBACs) with my last two children but not my first two. My last two babies were better-positioned and far easier to birth and I really credit that to the chiropractic care.

Despite being nearly 43 and "morbidly obese," my last pregnancy was my best. Even the edema and lipedema flare I had postpartum was a relatively small blip on the radar. Don't let the fact that some women with lipedema experience difficult pregnancies put you off having a baby; some women with lipedema do just fine in pregnancy. It's probably sensible to try to avoid the big interventions like inductions and cesareans whenever possible because they predispose to edema and complications afterwards. Remember that lipedemic bodies can give birth just fine naturally with a truly size-friendly provider.

Personally, I did not find that lipedema affected my pregnancies very strongly; my biggest difficulties were with weight bias/over-intervention by providers, and in dealing with hypermobile joints during pregnancy. However, I did find that pregnancy increased my abdominal lipedemic fat every time, despite almost no weight gain, and I did experience significant temporary edema after two of my births.

Perimenopause and Menopause


As I transitioned into middle age, I did find that my leg size increased quite a bit, especially as I went through perimenopause and menopause from my mid-40s to mid-50s.

More than simply a size change, the shape of my legs changed. I developed major fat pads and "folds" just under my knees, and I got some major-league "cankles" (calf-ankles). My arms have also gotten much larger now. I now have a truly significant amount of fat on my hips, abdomen, legs, and arms, and people really do stare. Although I am pretty at peace with my body in general, it's not always easy.

Clothing-wise, lipedema has made aging more challenging. Finding good clothing is always hit-and-miss due to my unique proportions. Cold weather outer gear and rain gear have been my biggest challenges, as I've written about before. I often have to buy men's gear, which goes to larger sizes than women's sizes but it is geared towards a big belly and no hips, which is not my shape. Still, it's better than nothing. I have found good coats in my size through Columbia Sportswear but I have yet to find a pair of rain boots, rain pants, or snow pants which really work well for me.

In summer, I do wear shorts and go swimming and the heck with anyone who doesn't like it. Most of the rest of the year I wear pants, the comfortable kind in cotton-and-spandex stretch fabric. I found my tolerance for restrictive fabric has diminished. Now, I mostly care about whether my clothes are comfortable. I wear pants or long skirts at work or when speaking to help others focus on me instead of staring at my legs. It's hard enough for people in our society to take fat people seriously; it's even harder when you have lipedemic legs. So in certain situations, I do cover my legs and arms to be taken more seriously, but that doesn't mean I always dress that way.

After some car accidents in my late 40s, I developed significant knee problems. I'm sure my weight didn't help the injuries, but I'd been at the same weight for many years without any problems so it wasn't all about my weight. Yet the orthopedic surgeon I consulted told me my knee pain could only have been caused by arthritis due to weight, despite an x-ray showing very little arthritis the year before the accident. He refused to do an MRI, saying it was pure coincidence that the pain developed after the accident. He was unwilling to treat my knee issues with anything other than weight loss or injections. We compromised on physical therapy but it didn't help. I haven't been back to an orthopedist since. I should have my knees replaced but am reluctant to risk having surgery cause a lipedema flare.

The difficulty in finding a doctor who doesn't blame everything on weight is a source of continuing major frustration to me, especially as I age. It's hard to be taken seriously as a person of size when you are young: it's even harder as a middle-aged woman. We are virtually invisible in society and especially in medicine.

Cancer


As if that wasn't enough, it gets harder. My lipedema was made worse by the fact that I was diagnosed with cancer in my mid-50s. Not any of the cancers that might be associated with weight, but lung cancer, a type of cancer that is completely unassociated with size. Talk about a shocker. I never smoked or had any other risk factors. The only possible risk was perhaps genetic ─ my birth father died of lung cancer in his late 50s ─ but doctors tell me this type of cancer is not directly inherited. Who knows why I got it.

My cancer was largely silent at first. I had very few major symptoms until it was advanced. The subtle early symptoms were things like breathlessness, some hoarseness, lack of endurance, and weak legs. I blamed it on being anemic and getting out of shape. I kept trying to get back into shape but just could not sustain my exercise program because it made me so fatigued. Yet nothing felt really alarming.

The first symptom that was really obvious and alarming was large lumps under my skin ─ subcutaneous tumors. At first I assumed they were lipedema nodules, but when they started appearing in areas not normally affected by lipedema (spine and shoulder) I thought they were lipomas (fatty benign tumors) or perhaps Dercum's Disease, which some patients get in addition to lipedema. However, the lumps on my body were not painful, unlike Dercum's Disease, so it didn't fit perfectly. I made an appointment to see a doctor but for various reasons the appointment got put off.

Eventually I developed severe respiratory symptoms. We thought it was pneumonia. I didn't see my normal care provider due to circumstances, and the other doctor didn't take it seriously. He should have done a chest X-ray but he didn't. He said it was just a sinus infection. We tried antibiotics but they didn't help. I kept going back to the doctor multiple times and he basically told me to tough it out and I probably just had asthma. (Cause you know, fat.) Due to all these delays, by the time my cancer was diagnosed, it had spread all over my body.

How did lipedema affect my cancer diagnosis? It certainly made it more difficult to figure out because we thought the subcutaneous tumors were part of lipedema or Dercum's. And of course the weight that goes with lipedema meant that my doctor did not take my respiratory symptoms, weakness, and fatigue seriously, even though they were very serious and debilitating. By the time my cancer was diagnosed, I was nearly dead.

I am lucky that my particular mutation of lung cancer does have some treatments available, and that means my prognosis is better than some. Many lung cancer patients die within the first year and I have already surpassed that. My targeted therapy treatments brought me back to life and made me mostly functional again. I'm not back to normal but I'm a lot better than I was! However, I am unlucky in that my cancer is not curable. It will likely kill me but the treatments are changing so rapidly that it's difficult to predict the future.

The cancer treatments and related complications have triggered the development of lipo-lymphedema ─ lymphedema on top of  the lipedema. This has been difficult. One of the side effects of my first cancer medication was severe ankle and foot edema. Although my feet had always been spared before (one of the defining aspects of lipedema), suddenly now I had massively swollen feet as well as legs. Eventually I changed medications and my foot swelling went away, but I still struggle with leg lymphedema.

I have to be honest; the increase in leg size has been quite challenging. It makes it harder to get around and it's very tiring. Cancer often involves muscle wasting; a lot of food energy is diverted to the tumors and the cancer starts cannibalizing your own muscle for additional energy. To be a large person with lipedema and then experience muscle wasting means that mobility becomes a real issue. After a stay in Intensive Care, I had trouble walking for a while. I had to go to rehab and get physical therapy before I could return to my home. Now I am much improved, but walking is still definitely exhausting and I don't go all that far. I miss taking a nice walk but am trying to build that up to that again.

Dealing with Lipedema


Dealing with lipedema has not been easy over the years, but has definitely gotten more challenging as I have aged and other health challenges have arisen. When I was younger, it was more of an aesthetic problem and a problem with finding clothing than a real interference in my life. It didn't affect my mobility much and I did most things I wanted to do. However, lipedema plus cancer has now affected my mobility and I find that very difficult, though I try not to let it get me too down. I work hard not to let lipedema or cancer define my life, but it's not easy some days.

The things that I have not found helpful in my lipedema journey are dieting of any kind and rigid attitudes about food. I don't follow either an anti-inflammatory diet nor a ketogenic diet; these approaches are simply somebody's guess at a treatment; there is absolutely NO proof that they help. At this point, nobody's even tested them so it bothers me to see them talked about in lipedema circles as if they are a proven treatment. They're not.

Unfortunately, many people in the lipedema community are still stuck in the dieting mentality and weight loss emphasis. Food restriction is a strong thread in many lipedema and medical organizations' guidelines. That is very off-putting to many people of size who would otherwise involve themselves in the lipedema community. Many care providers try to be understanding about weight issues, but the one thing most cannot understand is clients not actively trying to lose weight. They have been taught the "good fatty/bad fatty" paradigm; you can be fat, but that's no excuse for not continuing to try to lose weight. But for me, trying to lose even the 5-10% doctors recommend means playing Russian Roulette with my body because weight loss always ends in a rebound for me. Furthermore, I refuse to be a famine victim anymore. I'm done trying to starve myself.

Many women with lipedema, especially the more severe cases, choose weight loss surgery to try and cope with the physical effects of so much weight. This is a personal decision made by each woman and I am not here to judge it. However, from what I've seen, I don't believe it's very effective long-term for lipedema. Weight loss is mostly from other parts of the body and only minimally from lipedemic areas, and significant regain is very common after a few years. Personally, I am not interested in weight loss surgery of any kind because I have seen too many people with bad side effects after a few years. Lipedema is bad enough without adding malnutrition issues. But that's my choice; everyone gets to make their own choices about it.

Of course, we don't want to add to our lipedema by being excessive. I try to be sensible about carb intake and not over-indulge, but neither do I abstain from carbs, including sugar. I just try to be reasonable. My motto is everything in moderation (including moderation!). I try to avoid getting neurotic over food or making "good food/bad food" judgments; that is eating-disordered thinking. Some food is healthier for you than others but that doesn't make you a better person for eating it, nor will it make you skinny. I hear friends trotting out the usual "it's-a-lifestyle-change" cliché but if it eliminates major food groups or is highly restrictive, it's still a diet. Food Police moralism isn't helpful. Food is just food; simply be sensible about it.

I try to follow Health At Every Size® (HAES) paradigm instead of a weight-centric one. HAES is a health approach that de-emphasizes the scale, restrictive eating, and punitive exercise; it encourages intuitive eating and enjoyable movement. I aim for weight stability and reasonable eating habits, and use lab results to guide my health and nutrition decisions. I find my weight stays reasonably stable with that approach.

The cancer has made nutrition more challenging because the meds change the sense of taste and food is often very unappealing. Muscle wasting and malnourishment from cancer is real even for fat people, an irony which is not lost on me. My oncologist has emphasized the importance of eating and getting enough calories, even if they are not "perfect" nutrition. It's hard to let go of all the pressure from people to eat this or avoid that to "fix" my cancer, but my doctor says it's more important to just eat. Your body needs energy to deal with the cancer.

The care practices I personally have found most helpful in my lipedema journey include chiropractic care, medical massage, and complete decongestive therapy. The chiropractic care and massage helps address the hypermobility problems and muscle tightness than can occur. After I developed lipo-lymphedema from the cancer treatments, I found that Manual Lymph Drainage (MLD) and compression were immensely helpful in preventing some of the skin complications. At one point in cancer treatment, my legs had such severe swelling, my skin cracked and leaked lymph fluid. I developed a mild cellulitis infection, which we were fortunately able to nip in the bud with antibiotics. I've had to become much more careful about caring for my legs and keeping down the swelling. With MLD and compression, they are doing okay.

If I had unlimited money and no cancer, I would pursue specialized liposuction for the lipedema; it has to be done by specially trained doctors. Proper compression afterwards is critical. Research so far shows this type of liposuction to be quite helpful for many people. Sadly, most insurance will not cover this and my budget does not allow it, but it may be a valid choice for some people with lipedema.

Emotionally, I find it difficult to deal with the judgment heaped on people of size. When you say that you have lipedema, people think you are just making excuses. That I find really frustrating, especially when it comes from friends. I know some think I could lose weight if I tried harder, and that hurts. But I can't control what other people think, and anti-fat bias is so prevalent in our society it's no surprise they think that way. I try not to let those biases get in the way of friendship as long as they are respectful.

While I can't honestly say I'm thrilled with the appearance of my legs or arms, I don't let it bother me too much because there's realistically very little I can do about it. I don't like being stared at, but I try to see it as the other person's issue, not mine. Remember that how people react to you often has more to do with their own fears and insecurities, not yours. Let condemnation and judgment roll off of you.

I personally have been fortunate to have never struggled with depression the way that many people with lipedema have. That doesn't mean that dealing with lipedema and with cancer has not been frustrating or upsetting; it most certainly has! But depression is not one of my issues and I know that's lucky.

However, anger is one of my issues. Sometimes it makes me SO angry that I've been saddled with PCOS and hypothyroidism and lipedema. Talk about a genetic triple whammy! That is incredibly frustrating. And now cancer on top of that?!??! So incredibly unfair!!!!!!!

Having all of those conditions just sucks and I do sometimes indulge in the "Why me?" game. Sometimes I throw myself a really good pity party and let myself wallow in it for a while. I think that's reasonable and healthy ─ after all, having these conditions DOES suck and it is TOTALLY unfair. It's important to acknowledge and mourn your challenges and let yourself be angry. But spending too much time in anger is not healthy either; I don't want it to keep me from experiencing the positive things in life. So I pick myself up, brush off the negativity, and remind myself to count the blessings I do have. That helps counterbalance my pity party days.

Being adopted has added to my emotional frustration; I would really like to know more about my birth parents' genetic heritage so I could see how genetic any of this really is. I know there is an extremely strong history of diabetes and autoimmune disease on my birth mother's side, which leads me to suspect an autoimmune component to lipedema. However, it's been difficult to get more detailed information. I know there's a strong history of cancer on my birth father's side, and that he died of lung cancer at about the same age as I am now. However, there's no way to know if it's the same type of lung cancer or not, and we'll never know. That's a difficult burden, because I don't know how concerned to be for my children.

I try to remind myself that I also have good genes that balance these unfortunate ones, and I hope I passed on those good genes to my children. I try to remember the blessings I did inherit. Of course I have worries about my lipedema. How could I not? But now they've been supplanted by bigger worries, namely cancer. In the long run, lipedema is small potatoes compared to cancer. So while we have every right to be upset about our lipedema, remember to keep it in perspective. There are other challenges out there too. Keep it all in perspective.

Some days it's hard to be positive but mostly I look at my children and my spouse and feel blessed.

Final Thoughts


To summarize, I believe I've had lipedema my whole life, to one degree or another. I was never a "normal" size and I always had a pear shape, even as a young child. Puberty made it worse.

However, the lipedema really kicked into high gear as a young adult and I gained a tremendous amount of weight despite doing everything I could to stop it. Lipedema probably acted synergistically with PCOS and hypothyroidism and that's why the weight gain was so severe.

Dieting seemed to make the lipedema worse. The dieting made me gain weight rather than lose it over the long run, plus it took me close to an eating disorder. For me, it was much healthier to stop actively trying to lose weight. Instead, I follow the Health At Every Size approach and that has been incredibly helpful to me.

The lipedema in my legs and especially my belly got mildly worse with all my pregnancies and I had significant foot/leg edema after two of my pregnancies. However, other than that, it really didn't affect my pregnancies too much. I was fortunate in that way.

The lipedema got worse with peri-menopause and a major car accident but I was still mostly functional. My diagnosis of cancer threw a new wrench into the mix. The treatments for cancer made me develop lipo-lymphedema and I have struggled with that, but Manual Lymph Drainage and compression has helped. My mobility took a big hit; for a while I was in a wheelchair but I can now walk and climb stairs again.

While lipedema and cancer give me significant challenges, I get on with my life and I don't let it derail my happiness. I don't let it silence my voice, my contributions, or my opinions. I will not let the lipedema or the cancer define me.

I try to make sure that I continue to live my life with joy and purpose. Lipedema does interfere with my life, but I refuse to let it make me unhappy or to take away my pleasure in the important things of life. Cancer may take my life eventually but I will live as fully and as joyfully as I can until then.

How has lipedema affected you? And how do you try to handle it proactively?

Monday, July 31, 2017

Obesity and Joint Replacement, Part 2: Does Losing Weight First Improve Outcomes?


We have been discussing obesity and joint replacement operations, specifically knee replacements and hip replacements, and the common practice of denying these to people of size.

In Part One, we discussed the highly questionable ethics behind denying "obese" people joint replacement operations or requiring that they undergo weight loss counseling or bariatric surgery first. These practices keep many people of size from accessing joint replacements and improving their functional abilities and pain levels, sentencing many larger people to the difficulties of dealing with mobility challenges and a poorer quality of life.

Today, we discuss the data on whether losing weight before joint replacement actually improves long-term outcome, as so many doctors insist it will. Up till now it has been assumed that it will, but a closer look at longer-term research calls this assumption into question. Indeed, several recent studies that suggest that losing weight before knee replacement surgery does NOT improve outcome and might even result in worse outcomes.

Does Weight Loss Before Knee Replacement Help?

Of course, some readers will be asking, why not consider weight loss? If it will reduce the physical load on the joint and lessen pain and wear, why not pursue weight loss?

The answer is complicated.

It certainly seems logical that it would be advantageous to lose weight before an operation to replace a weight-bearing joint. There would be less weight and therefore less force on the joint, right?

And to be fair, there's definitely research that shows modest improvements in functionalityjoint force load, and pain levels with weight loss in patients with knee pain.

However, like most weight-loss research, these studies usually follow patients only short-term so the usual weight rebound effect is conveniently overlooked or minimized.

Even studies that promote weight loss for knee osteoarthritis admit (my emphasis):
Whether substantial weight loss can delay or even reverse the symptoms associated with osteoarthritis remains to be seen.
In other words, they do NOT have long-term proof that weight loss improves outcomes; they just assume it does because short-term studies (often just a few months) suggest some improvement.

This is the problem with nearly all weight-loss research; it only follows the patients long enough to show some benefits of a quick loss, but rarely follow patients long-term because many of the benefits are lost and most of the weight is regained (and often more), and doctors don't want to acknowledge that.

Even the usual recommendation to "lose just 5-10%" of a person's weight is problematic. While some research indicates modest benefits, research is actually quite limited on the long-term effects of such a loss. And most dieters do not manage or just barely manage that 5-10% weight loss over time.

Reviews of long-term research shows that for most people, few maintain the weight loss over time, most of the weight loss is regained with time, and many people rebound to higher weights or greater abdominal fat than they began with. There are biological reasons for this weight regain; it's not just about willpower.

Furthermore, weight loss can present risks as well as benefits, frequent weight fluctuation can be detrimental to health, and intentional weight loss/"dietary restraint" is one of the strongest predictors of long-term weight gain.

As a result, some care providers are now recommending that obese patients strive for weight stability rather than weight loss, and that the emphasis be placed on improving health habits and health measures instead of reducing a number on a scale.

Unfortunately, because short-term research shows modest improvements in joint function with weight loss, doctors have extrapolated this to assume that significant weight loss will improve long-term outcomes for joint replacement surgeries. As a result, some deny joint replacement to people above a certain BMI, practically mandate attendance at weight loss programs first, browbeat their patients about weight loss, or strongly push for bariatric surgery instead.

But does weight loss before joint replacement improve outcomes?

Weight Loss Before Joint Replacement 

In two recent new studies, the common assumption that having patients lose weight before having knee replacement surgery will automatically improve outcomes is questioned.

In a California study, only 12.4% of more than 10,000 knee replacement patients studied and 18% of more than 4000 hip replacement patients  managed to lose at least 5% of their starting weight in the year before their surgery. Around 75% of both groups stayed stable. Those who did manage to lose weight before knee replacement surgery did no better than those who did not lose weight before surgery. They had similar rates of surgical site infections and re-admissions for complications.

This certainly calls into question how helpful weight loss supposedly is before knee replacement.

In a companion study, those who lost weight before joint replacement surgery and managed to keep it off afterwards actually did worse than those whose weight stayed stable. The weight loss knee replacement group had more hospital re-admissions than those who did not lose weight. Furthermore, the hip replacement group who lost weight had more deep-site surgical infections. The authors noted:
These findings raise questions about the safety of weight management before total replacement of the hip and knee joints.
Why this increase in infections occurred is not clear. One theory is that when people are placed on a significantly low-calorie diet, nutrition can be impaired. It is difficult to get the proper amounts of all the nutrients when caloric intake is too low, and diets for these mobility-impaired people are often quite low-calorie because increasing exercise is difficult. As a result, some people with significant weight loss or chronic dieting histories develop nutrient deficiencies, and these may impair immune function. Research confirms that people with nutrient deficiencies have a greater risk for infections and other complications after joint surgery.

So while weight loss may reduce stress on the joint, nutrient deficiencies from this weight loss may affect immune function and ability to "bounce back" after surgery, negating any potential benefits of weight loss.

Furthermore, many people who lose substantial weight before joint replacements gain back that weight and more after the surgery. The end result of weight loss before joint replacement may be that the patient ends up weighing MORE later on, as one study found:
A patient with [hip replacement] had increased risk of important post-surgical weight gain of 12% (OR = 1.12, 95% CI, 1.08, 1.16) for every kilogram of pre-operative weight loss...Patients less than 60 years and who have lost a substantial amount of weight prior to surgery appear to be at particularly high risk of important post-surgical weight gain.
Ironically, requiring or strongly encouraging patients to lose a substantial amount of weight prior to joint replacement may backfire and ultimately add to the patient's weight, not lessen it. Yet most doctors continue to demand weight loss before joint replacement. Only now the emphasis is on weight loss via bariatric surgery instead.

Quote from Ragen Chastain, found here.

What About Bariatric Surgery First?

Because bariatric surgery is one of the only ways to lose weight in the long term (though it comes with many other complications and ususally involves some weight regain), many orthopedic surgeons are forming de-facto partnerships with bariatric surgeons.

As a result, many people of size are effectively blackmailed into weight loss surgery by BMI restrictions on joint replacements. 

One study from the Mayo Clinic states, "Morbidly obese individuals with severe degenerative joint disease who are considered unsuitable for arthroplasty because of excess weight should be considered for bariatric surgery."

Another surgeon reports that he accepts patients for knee replacements up to a BMI of 50, but after that he refers them for bariatric surgery first. (Because it makes SO much sense for someone too "at-risk" for one type of surgery to undergo a different type of surgery instead.)

Yet the common assumption that bariatric surgery should be promoted because it would surely improve outcomes in "morbidly obese" patients with significant osteoarthritis should also be questioned.

Some research does indicate improved outcomes in those who had bariatric surgery before joint replacement. And one recent study that looked only at short-term (90 days!) complications found lower rates of complications in those who had had bariatric surgery. Of course, the media was all over this study and it has been widely cited to justify requiring weight loss surgery.

However, other research does not support better outcomes with bariatric surgery, yet the press conveniently ignores that. In one study, complications were actually higher in the group with recent bariatric surgery (less than 2 years). The authors concluded:
Bariatric surgery prior to TJA [Total Joint Arthroplasty] may not provide dramatic improvements in post-operative TJA surgical outcomes. 
In another study from a major research hospital, researchers found an increased rate of joint replacements in bariatric patients who had experienced large or very rapid weight loss. They noted, "These results contradict the tenant that weight loss is universally protective against arthritis and merit larger prospective investigations."

Another recent study did not find improved outcomes in those who had had bariatric surgery before joint replacement. Indeed, many had worse outcomes instead, needing more revision surgeries afterwards.

This was echoed in a recent large retrospective cohort study that found worse outcomes in the group that had bariatric surgery first, compared to high-BMI people who did not. The WLS group had more infection, pneumonia, blood clots, heart issues, revisions, and manipulations of the prosthetetic.

recent meta-analysis found no significant benefit from bariatric surgery before joint replacement. The authors concluded:
For most peri-operative outcomes, bariatric surgery prior to THA or TKA does not significantly reduce the complication rates or improve the clinical outcome. This study questions the previous belief that bariatric surgery prior to arthroplasty may improve the clinical outcomes for patients who are obese or morbidly obese.
It may be that the potential benefits of reducing the load on the joint via weight loss from bariatric surgery may be outweighed by the nutrient deficits that are so common after weight loss surgery, even non-restrictive procedures. It may also be that the stresses on the body from rapid weight loss cause long-term damage to the body's ability to repair itself.

While some bariatric surgery patients have good outcomes and health improvement from the WLS, others have terrible outcomes, with significant nutritional deficits (sometimes despite supplements) and physical health problems. Some even die from the surgery or its after-effects. The problem is that you don't know which outcome group you are going to be in until after you've had the surgery. To strongly pressure joint replacement patients into bariatric surgery first means doctors are engaging in a high-stakes gamble with their patients' lives and quality of life.

And if joint replacement surgery at larger sizes is "too dangerous," why isn't weight loss surgery at larger sizes also too risky? Funny how patients are too fat for one surgery but surgeons can't wait to usher them into the Operating Room for WLS.

There are good reasons to question the common recommendation to have bariatric surgery before joint replacement. WLS is dangerous in and of itself, it often results in significant long-term nutrient deficits and other health problems, and it may not improve long-term outcomes for joint replacement.

However, as always, every person gets to make their own health decisions. Some people choose to have bariatric surgery before joint replacement and they have the right to do that. Others choose not to, and they also should have the right to do that. It's a choice with many pros and cons but one that should not be forced upon someone, which many doctors are essentially doing by denying joint replacement without bariatric surgery first.

In the past, care providers rarely studied whether or not bariatric surgery actually improved outcomes; they just assumed it will because it seems logical. But recent research shows there is good reason to question whether bariatric surgery really improves long-term outcome after all.

Mitigating Risk Through Better Management

Critics will no doubt point out that the risk for blood clots and post-operative infection are higher in obese patients and this is why they are concerned about operating on this group. This is true, and obese patients should be counseled about this fact. For example, one study found 6.7x the risk for infection in obese knee replacement patients, and 4.2x the risk for infection in obese hip replacement patients. The risk for infection is particularly strong among diabetics with a BMI over 40.

However, remember the dangers of using relative risk to discuss risk/benefit ratios; it can distort one's perception of risk. It is more helpful to use absolute numerical values so the magnitude of risks patients are assuming is more clear. One very large British study found that for knee replacements, risk for blood clots was increased from 2.0% to 3.3% and risk for infection from 3.0% to 4.1%, in obese patients with total knee replacements. For hip replacements, the risk for blood clots was increased from 2.2% to 3.3% and the risk for infection from 1.6% to 3.5% in obese patients. The authors noted (my emphasis):
Whilst an increased risk of wound infection and DVT/PE was observed amongst obese patients, absolute risks remain low and no such association was observed for MI, stroke and mortality.
However, the most important thing to point out is that an increased infection and clotting risk may be at least partly due to mismanagement of obese patients. Re-examining and changing the management protocols of these patients may improve outcomes independent of weight loss. 

For example, research shows that obese patients are chronically under-dosed with many medications. This is particularly relevant in antibiotics for preventing and treating infections, and in thromboprophylaxis medications for preventing blood clots after surgery. In other words, the two biggest risks of surgery in high-BMI patients may actually be largely preventable.

Obese patients, especially "morbidly-obese" (BMI 40+) and "super-obese" (BMI 50+) patients, are at particular risk for infections and may require larger initial antibiotic dosesextended or more frequent dosing regimens, use of more than one type of antibiotic, and perhaps topical infusions of antibiotics during surgery. This may help reduce their increased risk for infection after joint replacement surgery.

One recent study on infection in obese joint replacement patients strongly raised this issue of antibiotic underdosing. The authors found that above 100 kg (~220 lbs.), the rate of infections rose strongly. They noted that most patients in the study, regardless of BMI, were treated with a uniform dose (1.5g) of pre-op antibiotics and speculated that an increased antibiotic dose would help lower the rate of infections in this group. They stated:
The link between obesity and infection may be explained by several factors, but under-dosing of antibiotics is probably the most important to consider.
They also noted that noted that research examining the question of proper antibiotic dosage for obese patients undergoing joint replacement surgery was lacking. The problem of underdosing antibiotics in obese patients has been acknowledged in obstetric and bariatric surgery for several years. Why is it only NOW being brought up in orthopedic surgery?

Underdosing issues go beyond antibiotics. Research suggests that many obese patients are under-dosed with anti-clotting agents like heparin. One study found that weight-adjusted dosing cut the rate of blood clots in obese patients after surgery from 2.0% to 0.54% without increasing the risk for bleeding. Another study found that an extended prophylaxis period of anti-clotting agents lowered the risk for clots significantly, also without increasing bleeding.

Other surgical management protocols for obese patient need review as well. Some research suggests that surgical drains, often placed prophylactically in obese patients, have no benefit or may actually do more harm than good. Although further research is needed, one research review suggested omitting routine surgical drains in obese patients during joint replacement surgery.

As noted previously, another very interesting set of recent studies suggests that "morbid obesity" is less important that serum albumin levels on major complications like mortality and infections in joint replacement surgery. Serum albumin levels are an indicator of liver and kidney function but can also indicate nutrition status; obese people may be more at risk for malnutrition because of chronic dieting, highly restrictive intakes, or malabsorptive procedures like gastric bypass. Improving joint replacement outcomes might need to focus on measuring and fixing albumin levels and other nutrient deficits before surgery.

Bottom line, if the real concern is preventing poor outcomes, then perhaps the best approach is not to deny all high-BMI patients access to this surgery, but rather to lower morbidity by improving care for them instead via:
  • Utilizing weight-based dosing more uniformly in antibiotics and blood clot prevention drugs 
  • Using extended, adjunctive or more frequent antibiotic dosing regimens 
  • Avoiding routine prophylactic surgical drains 
  • Screening for and optimizing albumin and other nutrient levels before surgery
Ironically, a lot of the research on improving surgical outcomes in very obese patients is only done with bariatric surgery. It is past time to improve outcomes in high-BMI people in other types of surgery as well, including joint replacement surgery, instead of having to just extrapolate from bariatric surgery studies.

We need to know through evidence-based trials what the best protocols are for obese people undergoing joint replacement surgery. And in order to do that, we need for people of size to actually be given access to this surgery.

Summary

Sadly, even today, many orthopedic surgeons refuse to do knee replacements or hip replacements on anyone with a BMI over 35 or over 40 (or sometimes less).  In many places in the U.K., for example, people with a BMI over 35 have been routinely denied joint replacements and other surgeries. Some even deny joint replacements to those with a BMI over 30.

They do this because surgery is more technically challenging in very heavy people and because they view obesity as a voluntary condition brought on by poor lifestyle choices. They feel that losing weight is mostly a matter of willpower and choices, despite plenty of evidence to the contrary, and they feel they are doing their patients a favor by making them lose weight.

Surgeons also justify BMI restrictions by pointing out the short-term risks associated with orthopedic surgery in high-BMI people. They suggest that higher complication rates and somewhat lower functional outcomes justify denying surgery to this group and/or requiring weight loss or even bariatric surgery before joint replacement.

However, other surgeons are questioning the ethics of denying joint replacement surgery to high-BMI patients. They note that even very fat patients usually have good long-term outcomes from the surgery.

They recognize that the tremendous improvement in mobilityquality of lifeknee function, and pain relief is worth the trade-off of a potentially increased risk for mild short-term morbidity. Many are willing to proceed with joint replacement surgery in high-BMI patients as long as they have been given informed consent about the benefits and risks.

It is reasonable to counsel obese patients about the potential risks of a higher weight before surgery, especially if they have co-morbidities like diabetes. However, the counseling should cover both risks and benefits. It should acknowledge that the magnitude of risk is relatively modest in most obese patients and that most have very good long-term results from both knee replacement surgery and hip replacement surgery.

Patients can also be counseled about the potential benefits of weight loss before joint replacement surgery, as long as the data used is realistic and the potential risks of weight loss are also covered. But weight loss should not be required in order to access such surgery because research is contradictory on whether this is helpful. Short-term research shows some benefits, but longer-term research shows little benefit and sometimes even harm. Furthermore, the risks of weight loss, yo-yo dieting, and bariatric surgery should not be overlooked. More research is needed, but requiring weight loss before surgery is certainly not evidence-based. The truth is that the evidence is mixed and the choice should be left to the patient.

Joint replacement surgery in very obese patients is technically harder and does carry risks. However, the magnitude of this risk is modest and the potential for improvement in quality of life is very strong. Restricting high-BMI people from joint replacement surgery or requiring them to lose weight in order to access this surgery is NOT justified or ethical.

Rather, the risks are a call to surgeons to further examine the long-overlooked issue of how they manage obese patients. Risks can most likely be mitigated by proper medication dosing and more optimal surgical management of high-BMI patients.

Instead of restricting joint replacement or requiring weight loss in high BMI patients, orthopedic surgeons should be focusing on how they can improve outcomes in this group through modifications to surgical management protocols.


References

General Information about Joint Replacement

Weight Loss Before Joint Replacement

Bone Joint J. 2014 May;96-B(5):629-35. doi: 10.1302/0301-620X.96B5.33136. The risk of surgical site infection and re-admission in obese patients undergoing total joint replacement who lose weight before surgery and keep it off post-operatively. Inacio MC, Kritz-Silverstein D, Raman R, Macera CA, Nichols JF, Shaffer RA, Fithian DC. PMID: 24788497
This study evaluated whether obese patients who lost weight before their total joint replacement and kept it off post-operatively were at lower risk of surgical site infection (SSI) and re-admission compared with those who remained the same weight. We reviewed 444 patients who underwent a total hip replacement and 937 with a total knee replacement who lost weight pre-operatively and sustained their weight loss after surgery. After adjustments, patients who lost weight before a total hip replacement and kept it off post-operatively had a 3.77 (95% confidence interval (CI) 1.59 to 8.95) greater likelihood of deep SSIs and those who lost weight before a total knee replacement had a 1.63 (95% CI 1.16 to 2.28) greater likelihood of re-admission compared with the reference group. These findings raise questions about the safety of weight management before total replacement of the hip and knee joints.
J Arthroplasty. 2014 Mar;29(3):458-64.e1. doi: 10.1016/j.arth.2013.07.030. Epub 2013 Sep 7. The impact of pre-operative weight loss on incidence of surgical site infection and readmission rates after total joint arthroplasty. Inacio MC, Kritz-Silverstein D, Raman R, Macera CA, Nichols JF, Shaffer RA, Fithian DC. PMID: 24018161
This study characterized a cohort of obese total hip arthroplasty (THA) and total knee arthroplasty (TKA) patients (1/1/2008-12/31/2010) and evaluated whether a clinically significant amount of pre-operative weight loss (5% decrease in body weight) is associated with a decreased risk of surgical site infections (SSI) and readmissions post-surgery. 10,718 TKAs and 4066 THAs were identified. During the one year pre-TKA 7.6% of patients gained weight, 12.4% lost weight, and 79.9% remained the same. In the one year pre-THA, 6.3% of patients gained weight, 18.0% lost weight, and 75.7% remained the same. In TKAs and THAs, after adjusting for covariates, the risk of SSI and readmission was not significantly different in the patients who gained or lost weight pre-operatively compared to those who remained the same.
Osteoarthritis Cartilage. 2013 Jan;21(1):35-43. doi: 10.1016/j.joca.2012.09.010. Epub 2012 Oct 6.
Clinically important body weight gain following total hip arthroplasty: a cohort study with 5-year follow-up. Riddle DL, Singh JA, Harmsen WS, Schleck CD, Lewallen DG. PMID: 23047011
...DESIGN: We used multi-variable logistic regression to compare data from one of the largest US-based THA registries to a population-based control sample from the same geographic region. We also identified factors that increased risk of clinically important weight gain specifically among persons undergoing THA. The outcome measure of interest was weight gain of ≥5% of body weight up to 5 years following surgery. RESULTS: ...A patient with THA had increased risk of important post-surgical weight gain of 12% (OR = 1.12, 95% CI, 1.08, 1.16) for every kilogram of pre-operative weight loss. CONCLUSIONS: While findings should be interpreted with caution because of missing follow-up weight data, patients with THA appear to be at increased risk of clinically important weight gain following surgery as compared to peers. Patients less than 60 years and who have lost a substantial amount of weight prior to surgery appear to be at particularly high risk of important post-surgical weight gain. 
Arthritis Care Res (Hoboken). 2013 May;65(5):669-77. doi: 10.1002/acr.21880. Clinically important body weight gain following knee arthroplasty: a five-year comparative cohort study. Riddle DL, Singh JA, Harmsen WS, Schleck CD, Lewallen DG. PMID: 23203539
...METHODS: We used one of the largest US-based knee arthroplasty registries and a population-based control sample from the same geographic region to determine whether knee arthroplasty increases the risk of clinically important weight gain of ≥5% of baseline body weight over a 5-year postoperative period. RESULTS: Of the persons in the knee arthroplasty sample, 30.0% gained ≥5% of baseline body weight 5 years following surgery as compared to 19.7% of the control sample. The multivariable-adjusted (age, sex, body mass index, education, comorbidity, and presurgical weight change) odds ratio (OR) was 1.6 (95% confidence interval [95% CI] 1.2-2.2) in persons with knee arthroplasty as compared to the control sample. Additional arthroplasty procedures during followup further increased the risk for weight gain (OR 2.1, 95% CI 1.4-3.1) relative to the control sample. Specifically, among patients with knee arthroplasty, younger patients and those who lost greater amounts of weight in the 5-year preoperative period were at greater risk for clinically important weight gain. CONCLUSION: Patients who undergo knee arthroplasty are at an increased risk of clinically important weight gain following surgery. The findings potentially have broad implications to multiple members of the health care team. Future research should develop weight loss/maintenance interventions particularly for younger patients who have lost a substantial amount of weight prior to surgery, as they are most at risk for substantial postsurgical weight gain.
Bariatric Surgery Before Joint Replacement 

Bone Joint J. 2015 Nov;97-B(11):1501-5. doi: 10.1302/0301-620X.97B11.36477. Bariatric surgery does not improve outcomes in patients undergoing primary total knee arthroplasty. Martin JR, Watts CD, Taunton MJ. PMID: 26530652
Bariatric surgery has been advocated as a means of reducing body mass index (BMI) and the risks associated with total knee arthroplasty (TKA). However, this has not been proved clinically. In order to determine the impact of bariatric surgery on the outcome of TKA, we identified a cohort of 91 TKAs that were performed in patients who had undergone bariatric surgery (bariatric cohort). These were matched with two separate cohorts of patients who had not undergone bariatric surgery. One was matched 1:1 with those with a higher pre-bariatric BMI (high BMI group), and the other was matched 1:2 based on those with a lower pre-TKA BMI (low BMI group). In the bariatric group, the mean BMI before bariatric surgery was 51.1 kg/m(2) (37 to 72), which improved to 37.3 kg/m(2) (24 to 59) at the time of TKA. Patients in the bariatric group had a higher risk of, and worse survival free of re-operation (hazard ratio (HR) 2.6; 95% confidence interval (CI) 1.2 to 6.2; p = 0.02) compared with the high BMI group. Furthermore, the bariatric group had a higher risk of, and worse survival free of re-operation (HR 2.4; 95% CI 1.2 to 3.3; p = 0.2) and revision (HR 2.2; 95% CI 1.1 to 6.5; p = 0.04) compared with the low BMI group. While bariatric surgery reduced the BMI in our patients, more analysis is needed before recommending bariatric surgery before TKA in obese patients.
J Arthroplasty. 2016 Sep;31(9 Suppl):207-11. doi: 10.1016/j.arth.2016.02.075. Epub 2016 Mar 15. Lingering Risk: Bariatric Surgery Before Total Knee Arthroplasty. Nickel BT, Klement MR, Penrose CT, Green CL, Seyler TM, Bolognesi MP. PMID: 27179771
...METHODS: A total of 39,014 patients were identified in a claim-based review of the entire Medicare database with International Classification of Diseases, Ninth Revision codes to identify patients in 3 groups. Patients who underwent BS before total knee arthroplasty (group I: 5914 experimental group) and 2 control groups that did not undergo BS but had either a body mass index >40 (group II: 6480 bariatric control) or <25 (group III: 26,616 normal weight control)...RESULTS: ...Medical and surgical complication incidences were greatest in group I including: 4.98% deep vein thrombosis; 5.31% pneumonia; 10.09% heart failure; and 2-year infection, revision, and manipulation rates of 5.8%, 7.38%, and 3.13%, respectively. These values were significant elevation compared to III and slightly greater than II. CONCLUSIONS: This study demonstrates that BS before total knee arthroplasty is associated with greater risk compared to both nonobese and obese patients. This is possibly due to a higher incidence of medical or psychiatric comorbidities determined in the Medicare BS patients, wound healing difficulties secondary to gastrointestinal malabsorption, malnourishment from prolonged catabolic state, rapid weight loss before surgery, and/or age.
Bone Joint J. 2016 Sep;98-B(9):1160-6. doi: 10.1302/0301-620X.98B9.38024. Does bariatric surgery prior to total hip or knee arthroplasty reduce post-operative complications and improve clinical outcomes for obese patients? Systematic review and meta-analysis. Smith TO, Aboelmagd T, Hing CB, MacGregor A. PMID: 27587514
AIMS: Our aim was to determine whether, based on the current literature, bariatric surgery prior to total hip (THA) or total knee arthroplasty (TKA) reduces the complication rates and improves the outcome following arthroplasty in obese patients. METHODS: A systematic literature search was undertaken of published and unpublished databases on the 5 November 2015...RESULTS: From 156 potential studies, five were considered to be eligible for inclusion in the study. A total of 23 348 patients (657 who had undergone bariatric surgery, 22 691 who had not) were analysed. The evidence-base was moderate in quality. There was no statistically significant difference in outcomes such as superficial wound infection (relative risk (RR) 1.88; 95% confidence interval (CI) 0.95 to 0.37), deep wound infection (RR 1.04; 95% CI 0.65 to 1.66), DVT (RR 0.57; 95% CI 0.13 to 2.44), PE (RR 0.51; 95% CI 0.03 to 8.26), revision surgery (RR 1.24; 95% CI 0.75 to 2.05) or mortality (RR 1.25; 95% CI 0.16 to 9.89) between the two groups. CONCLUSION: For most peri-operative outcomes, bariatric surgery prior to THA or TKA does not significantly reduce the complication rates or improve the clinical outcome. This study questions the previous belief that bariatric surgery prior to arthroplasty may improve the clinical outcomes for patients who are obese or morbidly obese. This finding is based on moderate quality evidence. 
Other Possible Factors

Clin Orthop Relat Res. 2015 Oct;473(10):3163-72. doi: 10.1007/s11999-015-4333-7. Epub 2015 May 21. Low Albumin Levels, More Than Morbid Obesity, Are Associated With Complications After TKA. Nelson CL1, Elkassabany NM, Kamath AF, Liu J. PMID: 25995174
BACKGROUND: Morbid obesity and malnutrition are thought to be associated with more frequent perioperative complications after TKA. However, morbid obesity and malnutrition often are co-occurring conditions. Therefore it is important to understand whether morbid obesity, malnutrition, or both are independently associated with more frequent perioperative complications...METHODS: The National Surgical Quality Improvement Program (NSQIP) database was analyzed from 2006 to 2013. Patients were grouped as morbidly obese (BMI ≥ 40 kg/m(2)) or nonmorbidly obese (BMI ≥ 18.5 kg/m(2) to < 40 kg/m(2)), or by low serum albumin (serum albumin level < 3.5 mg/dL) or normal serum albumin (serum albumin level ≥ 3.5 mg/dL)...RESULTS: Mortality was not increased in the morbidly obese group (0.14% vs 0.14%; p = 0.942)...The group with low serum albumin had higher mortality than the group with normal serum albumin (0.64% vs 0.15%; OR, 3.17; 95% CI, 1.58-6.35; p =0.001)... CONCLUSIONS: Morbid obesity is not independently associated with the majority of perioperative complications measured by the NSQIP and was associated only with increases in progressive renal insufficiency, superficial surgical site infection, and sepsis among the 21 perioperative variables measured. However, low serum albumin was associated with increased mortality and multiple additional major perioperative complications after TKA. Low serum albumin, more so than morbid obesity, is associated with major perioperative complications. This is an important finding, as low serum albumin may be more modifiable than morbid obesity in patients who are immobile or have advanced knee osteoarthritis.
HSS J. 2017 Feb;13(1):66-74. doi: 10.1007/s11420-016-9518-4. Epub 2016 Aug 16. Hypoalbuminemia Is a Better Predictor than Obesity of Complications After Total Knee Arthroplasty: a Propensity Score-Adjusted Observational Analysis. Fu MC, McLawhorn AS, Padgett DE, Cross MB. PMID: 2816787
...METHODS: TKA cases were identified from the National Surgical Quality Improvement Program from 2005 to 2013... Malnutrition was defined as hypoalbuminemia (<3.5 g/dL). Patients were classified by BMI as follows: non-obese (18.5-29.9), obese I (30-34.9), obese II (35-39.9), or obese III (≥40). Postoperative complications were compared across obesity and nutritional statuses. Multivariable propensity-adjusted logistic regressions were performed to determine associations between malnutrition, obesity, and 30-day outcomes. RESULTS: There were 71,599 cases identified, with 34,800 (48.6%) having albumin measurements...Malnutrition prevalence increased with BMI (6.1% in obese III vs. 3.7% in non-obese). With propensity-adjusted multivariable analysis, obese III was the only obesity class associated with any complication, wound complication, and reoperation. Hypoalbuminemia was a stronger and more consistent independent risk factor, for any complication, wound, cardiac, or respiratory complications, and death. CONCLUSIONS: Hypoalbuminemia is a more consistent independent predictor of complications after TKA than obesity. Strategies for medical optimization of these conditions should be investigated.
Antibiotic Dosing and Surgical Infections

Acta Orthop. 2016;87(2):132-8. doi: 10.3109/17453674.2015.1126157. Epub 2016 Jan 5. Body mass and weight thresholds for increased prosthetic joint infection rates after primary total joint arthroplasty. Lübbeke A1, Zingg M1, Vu D2, Miozzari HH1, Christofilopoulos P1, Uçkay I1,2, Harbarth S3, Hoffmeyer P1. PMID: 26731633
...We included all 9,061 primary hip and knee arthroplasties (mean age 70 years, 61% women) performed between March 1996 and December 2013 where the patient had received intravenous cefuroxime (1.5 g) perioperatively. The main exposures of interest were BMI (5 categories: < 24.9, 25-29.9, 30-34.9, 35-39.9, and ≥ 40) and weight (5 categories: < 60, 60-79, 80-99, 100-119, and ≥ 120 kg). Numbers of TJAs according to BMI categories (lowest to highest) were as follows: 2,956, 3,350, 1,908, 633, and 214, respectively. The main outcome was prosthetic joint infection. The mean follow-up time was 6.5 years (0.5-18 years). RESULTS: 111 prosthetic joint infections were observed: 68 postoperative, 16 hematogenous, and 27 of undetermined cause. Incidence rates were similar in the first 3 BMI categories (< 35), but they were twice as high with BMI 35-39.9 (adjusted HR = 2.1, 95% CI: 1.1-4.3) and 4 times higher with BMI ≥ 40 (adjusted HR = 4.2, 95% CI: 1.8-9.7). Weight ≥ 100 kg was identified as threshold for a significant increase in infection from the early postoperative period onward (adjusted HR = 2.1, 95% CI: 1.3-3.6). INTERPRETATION: BMI ≥ 35 or weight ≥ 100 kg may serve as a cutoff for higher perioperative dosage of antibiotics.
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