I have been repairing rotator cuffs for 30 years. And the most important thing I do in my office most days is talk people out of surgery they do not need.

Rotator cuff issues are omnipresent with age. Over 90% of people aged 40 or older have rotator cuff abnormalities on MRI. By your seventies, at least 30% have a full-thickness defect. Most of these people have no idea because the defect is not causing symptoms, and the shoulder still functions. So if you walk into an orthopedic office with shoulder pain and the MRI shows a "tear," that finding alone does not mean something happened or that something needs to be fixed.

Most cuff defects are not tears in the way you think. They are the result of decades of tendon attrition in a stress-shielded zone that gradually thins and develops a defect. It has more in common with the gray hair on your head than with a torn ligament from a sports injury. And the reason most of these defects do not compromise function is because of a structure called the rotator cable… a thick band of fibers that carries most of the mechanical load across the cuff like a suspension bridge.

The supraspinatus, the tendon most commonly reported as "torn," lies within the cable in a region that experiences very little force. If the cable and load path are intact, the shoulder continues to work just fine.

The evidence reflects this. The MOON Shoulder Group found that structured physical therapy was effective in approximately 75% of patients with atraumatic full-thickness rotator cuff tears at two years. Randomized trials show no clinically meaningful difference between surgery and PT at one year for degenerative tears. The default treatment for most atraumatic tears is non-surgical. That is what the data says, and that is what I tell most patients in my office.

I wrote a deep dive on this… how the cuff actually works, why the cable matters, when surgery is the right answer, and what to do if you have been told you have a tear and are not sure what comes next. Link in the comments.