99% of adults over 40 have shoulder "abnormalities" on an MRI, study finds

8 hours ago (arstechnica.com)

If 99% of adults have an abnormality, it ceases to be abnormal regardless of its effects

  • On the one hand, that's the point of the article. That it ceases to be a useful diagnostic indicator.

    On the other hand, if there are 100 places in the shoulder where you can have an abnormality, and most people have just one or a couple but the other 98-99 are normal, then each one individually really is abnormal.

    So it's complicated, and then it becomes important to figure out which abnormalities are medically relevant, in which combinations, etc.

  • That's actually what the article points out. But I do think the language of normal vs abnormal obfuscates some of the intent. It's a 'deviation from healthy baseline' that they're talking about, and there are multiple such deviations in the grouped 'anomalies'.

    From the article:

    The language in particular should change given that “abnormalities” are ubiquitous—thus normal—and shouldn’t be described in terms that indicate a need for repair, like “tear.”

  • I went to a doctor for something unrelated and ended up getting an MRI that happened to show my upper spine. The neurologist read it and determined that I have a Chiari I malformation[0]. I have no symptoms from this whatsoever. I never have. It's unlikely that I ever will. If it weren't for the MRI, I'd never have known.

    Doctors use to think that the degree of it that I have meant I'd have problems with it. After all, people who came in with the symptoms and then had an MRI or CT scan tended to show that level of herniation. Thus, it was assumed, that level of herniation was considered a diagnostic indicator. And then MRIs became cheaper and more accessible, and patients had them for all sorts of other reasons — like I did. Doctors discovered that the degree of "malformation" I have is very common among asymptomatic adults. In fact, you're many times more likely to be perfect fine with it than to experience symptoms.

    Well, huh. That doesn't sound like much of a malformation anymore. Or at least, by itself it doesn't mean anything, other than that perhaps you're more likely to have problems than otherwise. On its own? It's more of a normal variation.

    [0] https://en.wikipedia.org/wiki/Chiari_malformation

  • A majority of humans will eventually contract the herpes virus sooner or later and they will stay infected until they die. Does this make herpes normal? Maybe. Does this make herpes something we should stop worrying about? Probably not.

  • 99% of adults have abnormal faces, they all look different!

  • Right, it's clearly aging related deterioration. It's like saying facial wrinkles are an abnormality.

  • I think the conclusion they're eluding to in the article is that: "if MRI says 99% of people have abnormalities, MRI is not trustworthy".

  • Yes in one sense, but it also points to the insufficency of "normalness". See also: The Average Soldier.

    • There’s a famous case study in design about the Average Pilot - they were making airplanes than nobody could fly well because nobody was average enough in all physical dimensions to be comfortable in the aircraft. They had to design for ranges that the equipment could adjust through.

      Even then when I was a kid I knew a guy who wanted to join the air force and he had a growth spurt that made him too tall.

      2 replies →

  • "1% of adults over 40 have abnormally normal shoulders"

    But seriously, the article addressed that

    > The authors argue that the findings suggest clinicians should rethink MRI findings, changing not just how they’re used, but also how they’re explained to patients. The language in particular should change given that “abnormalities” are ubiquitous—thus normal—and shouldn’t be described in terms that indicate a need for repair, like “tear.”

  • no it doesn’t. not at all. “abnormality” is a measure vs. the median… what else could “abnormal” possibly even mean? how could anyone ever be abnormal in any way otherwise, given the number of possible avenues of abnormality in the universe? this logic can only even “play ball” with a singular “is this person abnormal or not?” boolean… if there existed even two axes of abnormality then by your folksy definition it cannot actually exist. QED.

  • If you ignore the time dimension, sure.

    But if 99% of adults today have an abnormality that 99% of adults historically didn't, it's abnormal.

  • It's a poor term but it's talking about a healthy baseline for any human as far as I'm aware. It's not adjusted for expected deterioration due to age. 100% of organs eventually fail if given enough time, but it's still fine to call the resulting failed organ a defect.

    Presumably, some of this is just it's pretty damn inevitable you're going to accumulate at least some level of detectable injury that doesn't completely heal over the course of 40 years. I needed shoulder reconstruction because I fell off a skateboard trying to bomb a hill a year and a half ago and it's healed to the point there isn't any functional impairment, but given there's metal in there now, it's obviously going to look abnormal on an image. There's just an impedance mismatch here between what imaging finds and what people actually care about. Any detectable deviation from expected tissue configuration is going to show up and get reported, but there is no reason for a patient to give a shit. Functional impairment and/or pain is what they care about, though those are both also universal if you live long enough. No 90 year-old walks without a limp but it's still completely fair to call a limp an "abnormal" gait.

  • if they all have the same abnormality yeah but if they all have different abnormalities then they're still abnormalities.

Best thing a doctor ever told me was "you CAN get imaging done, but I'd like to warn you that there is a near-certainty we'd find something wrong with your shoulder and your back".

Given that most commenters do not seem to have read the article perhaps the headline could be more explicit about 'MRIs find "abnormalities" but they seem to have no relationship to actual health problems"

Who's the freak without an abnormality?

Most of my shoulder issues are sleep related since I sleep on my side. Getting a body pillow system, was costly but kinda worth it. Helps with shoulder and GERD. Only issue is that it's kinda warm and I like to sleep cool.

  • Any recommendations? I have GERD and generally sleep on my back, which helps but isn't perfect.

    • You can try raising the head part of the bed by 5 - 6 or so inches using wood blocks. The doctor recommended it to me.

      It's not perfect, but has really helped me!

      1 reply →

  • The issue with those inclined pillows with the arm hole in them is that they can be a really hard angle for a side sleeper to be at. It makes my back and hips hurt way worse than my shoulder.

  • Cervical radiculopathy can cause shoulder pain. I have experienced this quite a bit and it's probably also because of my sleeping style. I wouldn't get an MRI unless I was planning to have surgery.

  • > was costly but kinda worth it

    This doesn't inspire confidence, but I guess any improvement that mitigates pain is nice.

I’m over 40. Barely. But, over 40 nonetheless.

I grew up in front of a PC as early as 6. I used it for everything. I grew up with it, on the internet as it was blossoming, and escaped through it as a means to escape reality, bullying, abusive household… you name it, from early Heat.net/mplay.net days, early mIRC CS alpha/beta/1.6 days, ICQ, MSN, VBasic coding, learning C/C++, to just about doing everything on a computer. Hell, I'm in the career I'm in because of it.

I escaped and escaped hard. If I couldn’t access it at home, I’d bike to the library and access it, or joined the computer club in HS just so I had another one I could easily hop on. All hours of the day, you name it. I even bumped into some wild early AOL Chat Room days that I'm pretty sure were some kind of a ring, but I digress.

I remember over the years comments like, “you look like you watch too much TV”. I barely watched TV. Or, “why are your shoulders always raised?”. I always said I'm carrying a heavy backpack with all my books. Or, “what’s wrong with your right neck?”, or “why are you corkscrewing to the left”. You name it. I just shrugged it off.

As the years went on, my jaw started to hurt, my right rotator cuff would crack all the time, my right ab snapped, my obliques weakened, my right hips started to fail, I don’t think I have a right scapula at this point, my molars no longer touched, my head jetted forward, my tongue tied, my lower jaw went to the left, my breathing worsened, it became shallow and short, my right-diaphragm hurts to inhale… I always blamed it on poor genetics, or something else, or "some accident I guess I don't remember".

It wasn’t until I hit 39 when it all kind of clicked.

It’s years of using a god damn mouse. Forward, right, back, left, circle motions, rinse and repeat, 12+ hours a day. In fact, even to this day I'm unable to use a mouse for more than 5 hours a day before the flares start. It's a numb pain. A 3/10 discomfort, but it's chronic.

I’m unable to sleep more than 4 hours a day without waking up with excruciating pain down my right shoulder and neck, unable to feel a large part of my right side, and the pain is getting worse by the day.

Ive done PT, chiro, acupuncture, personal trainer, you name it. THOUSANDS of dollars to no avail. In fact, I tried to do the 2000 pushup challenge for February (maybe a Canadian thing?) and I had to stop after 10 days due to INSANE right-shoulder flare-up.

Where’m I going with this?

Log off people. Stretch. Do exercise. Something before it’s too late.

I’m pretty sure we’re going to see more and more of “millennial” style abuse and neglect rear its ugly head.

Closely related to a huge problem in American health care --- overprescription, particularly of surgical procedure. There's evidence that some widespread classes of surgical intervention --- shoulder "impingement" in particular --- have outcomes no better than placebos in controlled trials where people literally get placebo incisions.

Do they define if this relates to anything noticeable in your day to day?

For example, I can put my right hand above my shoulder and left hand near my lower back and easily connect both hands behind my back with fully interlocked fingers by converging in the middle. They reach to the other hand's palm.

But I can only barely touch my fingers with both hands if I switch it up so my left hand is up top.

I have no pain or day to day mobility issues but something is lopsided. Is that what they consider abnormal?

  • Limited range of motion on one side could cause some deviations in scapulohumeral rhythm, so your force application won't be optimal and may cause injuries, or even cause uneveness and side effects in gait cycle. And with time it tends to get worse since the body would be trying to adopt to execute the function. But suboptimal force application eventually would cause joint injuries if a convex (humerus) is rolling without gliding or vice versa or doing it in suboptimal rhythm.

    That's my personal take, not a doctor, study kinesiology as a hobby.

    All such minor mobility issues could be addressed by body conditioning excercises including simple isolated mobility drills to learn range of motion of joints.

  • I'd consider it abnormal that you can do that; I can't get my fingertips within a foot of each other doing that.

    I'm nearly 60 but I don't know if I could ever do that. You have good mobility IMO.

I have three kids and they've messed up my dominant schoulder (left).

  • From walking around holding them with your left arm when they were babies, or from something else?

    • Walking/carrying at all crazy hours once they were >30kg. Holding 40kg of sick kid around is fun. Ours all refused to sit in the stroller very early which is what made it so much worse (our oldest was two, the other two refused point blank the second they could walk).

    • not OP but - walking, carrying, holding, being pulled in random directions, catching kids when they jump at you from unexpected places, kids using your arms to practice tug-of-war/rock-climbing, pushing (empty) stroller with one hand, and carrying kid with other....

I don't know what causes it, but even without major issues I think a lot of people continually loose range of motion in the shoulder as they age. So this doesn't surprise me.

It's much the same with degenerative changes in the spine. Almost every adult will have such changes and they do not seem to correlate with symptoms. Everyone's back is screwed up and only some people get back pain, and only sometimes in the same areas as the screwed up areas.

Just hit my mid twenties. Want to say I started having some shoulder issues around 20 years old. Although correlation =! causation, I largely think this is because of my lifelong computer usage and PC gaming. It doesn't bother me all the time, but every few months something will change up and it comes back. Surprisingly, my wrists and hands are completely fine, no carpal tunnel or anything similar.

  • Yes, sitting slightly hunched up with your hands in front of you on a keyboard for 8-10 hours a day will screw up your shoulder mobility over time.

    • I think using a standing desk has really helped. I don't use mine at work often, but I generally am standing when I'm at home and it really does feel like it has improved my shoulder issues and posture.

Evolution never really bothered with the wellbeing of 40+ year olds.

  • Oddly enough, I think now it will. Because there is a whole generation of people having kids later, some first time parents even in their 40s. Naturally this should mean they produce offspring that over time is also able to easily reproduce in their 40s. Teen pregnancy is way down, and late pregnancies are replacing it.

    • Evolution typically happens on the scale of a million years, not a couple generations of human behavior.

Even though they never have any neck pain, many shoulder issues are actually caused by pinched nerves in the cervical spine.