What Is a Rotator Cuff Tear and How Is It Repaired?

Reaching overhead, lifting something down from a shelf, throwing a ball — your shoulder does all of that with help from a group of muscles and tendons called the rotator cuff. Those tendons surround the shoulder joint and help keep the head of your upper arm bone seated in its shallow socket while the arm moves. When one of those tendons tears, ordinary reaching can start to hurt, and lifting can feel surprisingly weak. The video at the top of this page, a 6-minute 13-second look at rotator cuff surgery, focuses on the repair itself: most often, re-attaching the torn tendon to the head of the humerus, the upper arm bone.

A cuff that holds, not just a muscle that pulls

It helps to picture the cuff as a sleeve rather than a single muscle. Its tendons blend around the top of the arm bone, steadying the joint through movement instead of simply pulling in one direction. A tear can follow a single injury, but it can also develop gradually as a tendon wears over time — the kind of slow change discussed in our guide to what osteoarthritis is, where joints change with use and age. People often notice a dull shoulder ache, pain when lifting or reaching behind them, and weakness when they try to raise the arm.

What to expect if repair is recommended

Not every tear is handled the same way, and the plan depends on the tear and on examination and imaging. The anchor video makes a useful distinction. A partial tear may need only a trimming or smoothing procedure called a debridement. A complete tear, by contrast, is repaired by stitching the tendon back to its original site on the humerus, so it can heal where it belongs. A second video on this site, "Rotator Cuff Repair Surgery", adds the approach: the procedure can be done through a larger open incision, or with shoulder arthroscopy, which uses small buttonhole-sized incisions. Your surgeon explains which approach fits your shoulder — that choice isn't one to make from a video alone.

Afterwards, the tendon needs time and guided movement

Repair is only the first half of the story. A re-attached tendon needs protected time to heal, and rehabilitation is usually introduced gradually under professional guidance, rather than by testing the shoulder with heavy lifting straight away. Expect the early period to feel slow; that's deliberate, not a setback. Keep follow-up appointments, follow the movement limits you are given, and report new pain, fever, or a sudden loss of movement promptly instead of pushing through it.

If shoulder pain is keeping you from sleep, work, or everyday reaching, get it examined in person. An accurate picture of whether a tendon is torn — and how much — is what decides whether rest, therapy, or repair is the sensible next step for you.

Frequently Asked Questions

Does every rotator cuff tear need surgery? No. The right approach depends on the type and size of the tear, your symptoms, and examination and imaging findings. Some tears are managed without surgery, while a complete tear may be repaired by stitching the tendon back to the bone.

What is debridement for a partial tear? Debridement is a trimming or smoothing procedure. As the anchor video explains, a partial tear may need only debridement, rather than a full re-attachment of the tendon.

Can rotator cuff repair be done with arthroscopy? It can be done through a larger open incision or with shoulder arthroscopy using small buttonhole-sized incisions. Which approach is used depends on your individual shoulder and your surgeon's judgement.

MedicalVideos.com has published trusted medical videos since 2007. The site was founded by Dr. Mohamed Ibrahim, MD, PhD — physician and researcher.

Educational only — this article is general information about rotator cuff tears and repair, not medical advice and not a guide to anyone's diagnosis or treatment. Whether a tear needs therapy or surgery, and which approach is suitable, belong with your own clinician and surgeon.