Rotator Cuff Tears: When Regenerative Care Is Worth Trying Before Surgery

By Dr. Farhan Abdullah, DO | Medical Director, Magnolia Functional Wellness | Southlake, TX

A woman in her early sixties came to see me last spring with an MRI report she'd already read about forty times. "Full-thickness supraspinatus tear," it said, in the flat tone radiology reports use for everything from a hangnail to a catastrophe. She'd been lifting her carry-on into the overhead bin at DFW for years and now couldn't do it without wincing. Her sister had told her surgery was the only answer. Her neighbor said never to let anyone cut on a shoulder. She wanted me to break the tie.

I'm an internal medicine physician, and at Magnolia Functional Wellness in Southlake I spend a lot of time with people stuck between two loud opinions. Rotator cuff tears are a perfect example. The truth sits in the middle, and it depends heavily on the size of the tear, your age, how you use your shoulder, and what you've already tried. So let's walk through it the way I'd walk through it in the exam room.

What a rotator cuff tear actually is

Four small muscles wrap the top of your upper arm bone like a sleeve, and their tendons hold the ball snugly in the socket while you reach, lift, and rotate. The supraspinatus, which runs over the top of the shoulder, is the one that fails most often. It sits in a tight space, it gets pinched by the bone above it, and its blood supply isn't great to begin with.

Tears come in two broad flavors. Traumatic tears happen all at once, a fall on an outstretched arm or a heavy lift gone wrong, and those often deserve a prompt surgical opinion, particularly in younger, active people. Degenerative tears are the other kind. They build slowly over years of wear, often with no single injury you can point to. Plenty of people discover one only because an MRI was ordered for something else.

That last point matters more than most patients realize. Imaging finds tears in shoulders that don't hurt at all, and the likelihood climbs with age. A tear on a scan is not the same thing as a shoulder that needs fixing. I tell my patients that I treat the person with the shoulder, not the picture of the shoulder.

Surgery isn't automatically the winner

This is the part that surprises people. In Finland, a group of surgeons led by Kukkonen ran a randomized trial that followed patients with small, nontraumatic supraspinatus tears for years. In their over 5-year follow-up of 180 shoulders in patients older than 55, published in the Journal of Shoulder and Elbow Surgery in 2021, there were no significant differences in Constant score improvement, pain, or satisfaction between physiotherapy alone and surgical repair. Operative treatment also didn't protect against later joint degeneration. A few people in the physiotherapy groups did end up crossing over to surgery, which is worth knowing too.

Read that carefully, because it's easy to overstate. This was small tears, one tendon, older adults, tears that weren't from an acute injury. It doesn't tell you that a 38-year-old with a fresh traumatic tear should skip the operating room. It does tell you something I see borne out in clinic: for a good share of degenerative tears, a structured trial of nonoperative care is a reasonable place to start, and the surgery door doesn't slam shut while you try.

So what does nonoperative care look like? Progressive strengthening guided by a good physical therapist. Fixing the mechanics of the neck, upper back, and shoulder blade. Sleep positioning, because night pain wrecks recovery. Looking at the systemic stuff too, like blood sugar, smoking, vitamin D, and inflammation, since tendons heal poorly in a body that's running on fumes. That's where my functional medicine training earns its keep. A tendon is a living tissue with a blood supply and a metabolism, and it responds to what's going on in the rest of you.

Where regenerative care fits, and where it doesn't

Now to the question that brings many people to Magnolia. Can biologic injections such as platelet-rich plasma help a rotator cuff tear? The short answer is that it depends on which problem we're talking about, and the evidence is more mixed than the marketing around this field would suggest.

Here's a study I think every patient considering PRP should know about. In a 2024 three-arm randomized trial in the American Journal of Sports Medicine, Yao and colleagues tested platelet-rich plasma added to arthroscopic rotator cuff repair in 150 randomized patients, comparing leukocyte-rich PRP, leukocyte-poor PRP, and standard care. At 12 months there was no significant difference in the primary outcome, the UCLA score, and no significant difference in retear rates, which were low at 8 percent overall. The leukocyte-rich group did show better ASES scores than the control group at 3 and 6 months, but that early edge faded by a year. The authors concluded that the clinical benefit remains to be proven.

I like that trial precisely because it isn't a sales pitch. It's a well-run, level 1 study, and its answer was "not clearly better." If a clinic tells you a PRP injection will rebuild a torn rotator cuff and spare you any need for surgery, ask them to show you that data. I haven't seen it.

So where do I use these tools? Mostly in a narrower window than the headlines imply. Partial-thickness tears and tendinopathy, where the tendon is irritated and frayed but still in continuity. People who've done real physical therapy and are still limited. Patients who'd like to avoid another steroid injection, since repeated cortisone isn't kind to tendon tissue. In those situations, an ultrasound-guided injection paired with a rehab plan is a reasonable, low-risk option to discuss, as long as we're frank that results vary and that the injection is a spark, not a rebuild. If you want more detail on how we approach tendon injections generally, our PRP injection page covers the process, and our orthobiologics page explains the broader category.

What about a large, retracted, full-thickness tear in an active person, or a tear that came from an injury and left you unable to raise your arm? That's a different conversation, and I'll say it plainly: those shoulders usually need an orthopedic surgeon's eyes early. Waiting too long can let the muscle turn fatty and the tendon pull back, and then a repair gets harder or stops being possible. I'd rather refer you promptly than let regenerative treatment become a way to delay a decision that shouldn't be delayed.

How I decide, and the red flags I watch for

When someone like my patient with the carry-on walks in, I run through a short mental checklist. How big is the tear, and is it partial or full-thickness? Did it happen suddenly or creep in? How old is the patient, and what do they need that shoulder to do? Is there real weakness, or mostly pain? Have they completed an actual course of physical therapy, not just a few half-hearted weeks?

Some findings push me toward urgent surgical referral: sudden loss of the ability to lift the arm after an injury, a tear in a young and active person, a large tear with obvious weakness, or progressive loss of function despite good rehab. Other findings push me toward trying conservative and regenerative options first: a smaller or partial tear, a degenerative pattern, mild to moderate weakness, and a patient whose main complaint is pain and loss of endurance.

I also check things most orthopedic visits skip. Vitamin D, thyroid function, glucose control, and hormone status can all shape how well connective tissue behaves. I'm not claiming a lab value fixes a tendon. I'm saying a patient with uncontrolled blood sugar and a poor sleep schedule is starting the race with a limp, and it's worth addressing before judging whether any treatment worked.

Rehab is the part nobody wants to hear about

Whatever route you pick, the shoulder only gets better if you load it correctly. I see this constantly. Someone gets an injection, feels a bit better, and quits the exercises. Someone else has surgery and treats the sling as a vacation. Tendons are slow, stubborn tissue. They respond to gradual, repeated, well-dosed stress, and they don't respond to wishful thinking.

A decent rotator cuff program starts by calming the shoulder down, then rebuilds the muscles around the tear, especially the ones that stabilize the shoulder blade. The cuff doesn't work alone. If your upper back is stiff and your scapula doesn't move well, the cuff takes the abuse. Most people need at least three months of consistent work before they can fairly say whether conservative care is succeeding. Six weeks of sporadic effort proves nothing in either direction.

Expect some bad days. Shoulders flare when the weather turns, when you sleep wrong, when you finally decide to clean out the garage. A flare isn't failure. A steady downward trend in function over a couple of months is the signal to rethink the plan, and that's exactly when I want to see people again, so we can adjust the approach or move them along to a surgeon before the window narrows.

What I tell patients to do next

If you've been told you have a rotator cuff tear, take a breath. Get the imaging report and the actual images into the hands of someone who'll examine you, not just read the scan. Ask three questions: how big is the tear, is it partial or complete, and what happens if we wait three months while I do rehab? A good answer to that last one is specific and not scary.

Then give conservative care a real shot, with a therapist who'll progress your loading instead of just icing and stretching you. If you're still stuck after that, or you're a candidate for an injection-based approach, we can talk about options that fit your tear and your goals. And if the right answer is surgery, I'll tell you so, and I'll help you get to the right surgeon.

At Magnolia Functional Wellness here in Southlake, my goal with a shoulder like this isn't to sell you a procedure. It's to sort out which of your options has real evidence behind it, line them up in a sensible order, and make sure you're not choosing between your sister's opinion and your neighbor's. You deserve the version of the story that includes the studies that didn't go the way anyone hoped.