Scapulohumeral rhythm

Feb 01 2022

Experiencing a Catastrophic Shoulder Injury from a Physical Therapist’s Perspective, One Year Later

I haven’t posted an update about my shoulder rehab process since last April, which is when I returned fully back to work. Not really a coincidence!

As of today it has been one year since my surgery to repair my torn labrum and Hill-Sachs lesion. For anyone just now catching this blog, I dislocated my shoulder when I tripped on a sidewalk crack and fell while jogging early in the morning January 14, 2021. I have been working very hard all year to rehab my shoulder. I would say it’s about 95% recovered at this point. I’m hopeful that there is still some improvement to be seen.

It has been a challenge to regain the mobility and rebuild the strength at the same time. I’m happy to report that my range of motion is nearly 100%. Functional reach behind my back is still a little limited but good enough to fasten a bra behind my back or loop my belt around the back of my waist. My strength is also mostly back to normal. I am able to do all of my work activities, including manual therapy, that I would normally do. I don’t notice many functional limitations at home either and was even able to return to playing tennis with my family this summer.

The big issue is still that pesky scapulohumeral rhythm, especially when I reach forward and up overhead.

You can see that my scapula still wings a little bit as I raise my arms up and down. This is caused by the continued limited range of motion of the actual ball-and-socket joint of my shoulder. So more of the motion has to come from the shoulder blade moving excessively. This causes pinching of the soft tissue structures in the subacromial space because the humeral head does not glide downward as it rolls upward. As a result, these impinged structures cause pain. This pain is the biggest problem that is yet to resolve. I notice it the most at night because I still wake up several times a night in pain. If I spend too long in any sleeping position, it becomes painful and wakes me up. Happily, I am able to fall back asleep once I shift positions are rearrange myself. But my ultimate goal is to not wake up at night due to pain.

Glenohumeral joint arthrokinematics — On the left we have normal joint arthrokinematics. On the right you can see the pinching above the humeral head (the “ball” part of the joint) that results from altered joint mechanics.

Even though it has been a full year since surgery, I feel like this is still slowly getting better. So there is still more room for improvement. I plan to continue working on loosening up the part of the joint capsule that is still restricting this movement, strengthening the scapular stabilizers, and working on neuromuscular control of the entire pattern. So I’m still hopeful it will get even closer to 100%.

I can’t round out this year of shoulder rehab without mentioning a little bit about my continuing work to recover mentally and emotionally from this injury as well. While tripping on a sidewalk crack might not seem all that traumatic or frightening, it really affected me. I still have anxiety about walking on the sidewalk, especially if it’s dark outside. I haven’t been able to run since this injury, and even watching other people run on the sidewalk gives me a lot of anxiety. (Run on the street, my friends!) I see this a lot with my patients. We develop avoidance behaviors, consciously or subconsciously, because something we did caused us pain. Sometimes it’s something big and traumatic, but sometimes it’s something little like hurting your back when you bent down to pick up a sock. So ever after you have fear that you’ll relive that pain whenever you pick up a sock. Or maybe you felt a tweak in your back and ignored it and a few days later that tweak turned into intense pain down your leg. So now every little tweak you feel sets off alarm bells. I began seeing a mental health counselor a couple of months ago to try to work through some of this because, while running is not my favorite thing to do, I would like to be able to do it if I feel like it without fear or dread. And as a PT I do need to be able to watch my patients run now and then to analyze a faulty gait pattern. I’m hopeful that working through some of these issues on the mental health side of the equation will also help me get to full recovery and prevent this incident from affecting what I can do for any reason, physical or mental.

Nothing is lost of course. This experience has given me more empathy for my patients, though that empathy has probably actually made me a tougher rather than an easier PT! (I’ve been through it, you can do it too!) Feeling the tightness and tension in my own shoulder has helped me understand the way some of the treatments I perform and prescribe for my patients feel, and how they can help. Prior to this injury all of my joints were so loose and hypermobile that I had a hard time understanding what restricted joint mobility feels like. Now I know!

I hope that in writing about my experience with this challenge I’ve helped people have a better understanding of injury, whether their own or someone else’s. I hope that reading this reminds you of the awesome resilience and general coolness of the human body and, of course, of the power of physical therapy!

Apr 15 2021

Experiencing a Catastrophic Shoulder Injury from a Physical Therapist’s Perspective, Part 14 — Back to Work!

Busy, busy, busy!

Yesterday was the 3 month anniversary of my shoulder dislocation caused by tripping on a sidewalk crack while jogging. The strange thing is that even after 3 months I still feel detached from this injury, like I’m watching someone else go through it and working on it as if I were my patient. When I talk about the injury and the recovery process it feels like I’m talking about someone else. I’ve read that this can happen as a result of trauma. But I think it also has to do with the fact that I am a physical therapist and therefore my natural inclination is to look at an injury objectively with an outside observer’s perspective.

I haven’t written a blog entry about my shoulder injury recovery in a while because I have been so busy with the re-opening of my office! It didn’t take long to get back up to a full schedule of patients and keeping up with that is just a little challenging with my shoulder not being 100%. It’s a common challenge that as we recover we start to add our usual activities back into our lives and the time we have to devote to rehab, rest, and recovery starts to get chipped away. So I’m working really hard to balance my time between treating myself and treating my patients. I’m so thankful to be back in the office seeing patients and clients though. This past year has taught me how much I need that for my own mental well-being!

Sleep

Right now I’m about 10.5 weeks post-surgery. A lot of things are getting much better. The biggest success I can report is that I have finally been able to sleep in my bed again for the past week or so! This is a huge deal for me and it took much longer to get to this point than I anticipated. Sleeping is one of my favorite hobbies and, not to brag, but normally I’m really good at it. While I’m thankful to have a recliner that I could sleep in, it’s just not the same as being in my own bed. I had been sleeping in the recliner since the initial injury on January 14th with the exception of a couple of failed attempts to sleep in bed. Each time I tried I would wake up after less than an hour asleep with pain in my shoulder that just wouldn’t calm down with adjusting positions. I would have to get up and get some ice on it and go sleep in the recliner. For a while it was to the point where I didn’t even want to go to sleep (even in the recliner) because I knew when I woke up I would be in intense pain. I’m still not sleeping that well — waking up with pain and needing to adjust positions frequently throughout the night and getting maybe 5-6 hrs of sleep each night — but at least now I can fall back asleep without having to get out of bed.

Strengthening

This phase of rehab is generally supposed to be a time of building strength and it’s coming along pretty well. I’ve been able to add free weights to most of my exercises and to increase the resistance level of the Theraband I’m using for others. My shoulder is tolerating working at a computer now and most of the manual therapy I normally do. I’ve had to adjust the way I do a lot of things, especially manual therapy and manual muscle testing, to use my left shoulder for any force that needs to be generated. But overall, I don’t feel terribly limited in the things I’m able to do for my patients.

More on Scapulohumeral Rhythm

The biggest limitations continue to be range of motion and scapulohumeral rhythm. I had some folks send me questions about this after my last post. I wrote in that post about how the tightness of the shoulder ball-and-socket joint (aka the glenohumeral joint) is resulting in most of the motion when I raise my arm coming from the scapula moving on my back (aka the scapulothoracic joint). This must be improving on some level because the pain in my rhomboids and trapezius from being strained by the hypermobility of my scapula is starting to feel better and the relief I get after acupuncture or massage therapy is lasting longer. But some of you noticed that my injured shoulder was “shrugging” up when I tried to raise my arm. As you raise your arm the head of your humerus should glide downward to keep the ball nicely in the socket as your arm lifts. As I raise my arm no gliding is happening so my scapula has to rotate up and out to keep the ball in the socket as my arm goes up. If your humerus didn’t glide AND your scapula didn’t compensate in this way, the head of the humerus would roll right off the top edge of the glenoid. Not to worry in my case as the glenohumeral joint has been surgically stabilized and isn’t going anywhere ever again. But as you can see from the video below, that “shrug” sign is still happening. That is a sign that physical therapists look for as it tells us that either the rotator cuff is not working well to stabilize the head of the humerus (ball) in the glenoid (socket), the muscles that stabilize the scapula aren’t doing their job, or something is wrong with the joint mobility. My problem is a combination of the last two. As you can see in the video below, it’s certainly a little improved if you compare it to last month’s blog post, but still shrugging.

What’s to be done about this? Dave, my physical therapist, uses manual therapy to work on the joint mobility for me. But you have to be careful with hypermobile people after this kind of surgery not to push too hard to get joint mobility because we really need to avoid that glenohumeral joint becoming hypermobile again. So you can’t be too aggressive. Yesterday Dave also worked on getting some better activation from my lower trapezius muscle to help stabilize the scapula, which seemed to help quite a bit.

Shoulder internal rotation stretch while lying on the injured side to stabilize the scapula — Lying on the injured side to use my body weight to stabilize the scapula while I stretch the shoulder into internal rotation.

I’m also continuing to work on stretching that joint as much as possible on my own with the scapula stabilized by lying on it.

And of course I’m working to strengthen anything I can to stabilize the joint and the scapula including the rotator cuff muscles, which are the muscles that stabilize the head of the humerus in the glenoid socket, and the lower trapezius and serratus anterior, which work to stabilize the scapula. But I know everyone who has ever had to recover from an injury feels my pain when I say that it seems that the one thing I can’t do anything about is the truly limiting factor here — time. Some of this is just going to take time.

Mar 15 2021

Experiencing a Catastrophic Shoulder Injury from a Physical Therapist’s Perspective, Part 13 — Sling-free and scapulohumeral rhythm

No more sling! NSAIDs are back!

I saw the orthopedic surgeon this morning for my 6-week follow-up appointment. The great news is he said I can stop wearing the sling! The other great news is now that I’m 6 weeks post-op I’m allowed to take ibuprofen again! NSAIDs can delay bone healing. Since all of the damage that was repaired in my shoulder was bone and cartilage I was not supposed to take any NSAIDs for 6 weeks. Tylenol really does not work for me at all. They prescribed Gabapentin and Flexeril (a muscle relaxer) immediately post-op, but both of those are hard for me to function on because they can make you sleepy and brain-foggy. So hooray for NSAIDs!

Opening for business!

I’m also opening my office for physical therapy patients and Pilates clients again. I’ve been seeing a few folks the past couple weeks as I tried to ease back in. Now that I don’t have to deal with the sling and have at least partial function of my right arm I’m welcoming back more of my people. I’m looking forward to seeing everyone again.

Scapulohumeral rhythm

I plan on posting again soon with my updated exercise routine. For now I wanted to write about what’s going on with my shoulder movement. When you raise your arm there is a certain amount of motion that comes from your scapula (shoulder blade) moving on your back and a certain amount that comes from your glenohumeral joint (the ball-and-socket shoulder joint). It varies somewhat between individuals, but generally the first 30 degrees of elevation is from the glenohumeral joint alone and the rest of the motion occurs in a 2:1 ratio of glenohumeral motion to scapular motion.

As you can see in this video, that is not what is happening right now for my right shoulder.

Due to the surgery, which among other things tightened up the joint capsule of my right glenohumeral joint, almost all of the motion is coming from my scapula rotating a whole lot on my back. Almost none of the motion is coming from my glenohumeral joint itself. My hypermobile scapulothoracic joint is more than up to the task of making up the difference for my hypomobile glenohumeral joint. But this is making my rhomboids and trapezius muscles on the right very cranky (painful) about having to do all this work to turn my scapula. So most of my pain (which at least now I can take ibuprofen for, yay!) is coming from those overworked and underpaid rhomboids. The surgeon says this is what he expects at this point, that it will get better with time and PT, and that I should stop worrying so much.

I’ll take another video when this is improved in the hopefully not-so-distant future to show you how it changes.

Shoulder external rotation range of motion

I also have very limited external rotation range of motion. This is my tightest direction. As you can see from this photo, it’s got a long way to go to be anywhere near like the other side. Ideally both hands should be able to open to the sides about equally. The surgeon says he expects it to eventually be within 10% of the motion of the other side, which would have no effect on function.

Incision scars are looking good

I’m including the following photo just because I thought you might like to see how well my incisions are healing up. There are 2 in the front of the shoulder and 2 in the back. I’ve been using Mederma on them, using my microcurrent point stimulators on them which are great for remodeling both external and internal scar tissue, and doing scar massage techniques on them daily. They are looking pretty good and will probably barely be visible in a year or so.