Shoulder arthroscopy is a minimally invasive surgery that uses a small camera and thin instruments, inserted through tiny incisions, to diagnose and repair problems inside your shoulder joint. It’s one of the most common orthopedic procedures performed today, used for everything from rotator cuff tears to chronic shoulder instability. Because the incisions are small (usually just a few millimeters), recovery is typically faster and less painful than traditional open surgery.
How the Procedure Works
You’ll be positioned either on your side or in a reclining chair-like position. Your surgical team cleans the skin, then injects fluid into the shoulder joint to inflate the space and separate the tissues. This makes it easier for the surgeon to see and maneuver inside the joint.
The surgeon makes a small incision, usually near the back of the shoulder, and inserts the arthroscope, a pencil-sized camera connected to a video monitor. Through this camera, they can inspect cartilage, bones, tendons, ligaments, and the joint capsule in real time. If a repair is needed, one to three additional small incisions are made for specialized instruments. The entire procedure typically takes between 30 minutes and two hours, depending on what needs to be fixed.
Conditions It Treats
Shoulder arthroscopy can address a wide range of problems. The most common include:
- Rotator cuff tears and tendonitis: torn or inflamed tendons that control shoulder movement
- Labral tears: damage to the ring of cartilage that deepens and stabilizes the shoulder socket
- Shoulder impingement: where the rotator cuff gets pinched or abraded during overhead movements
- Shoulder instability: a joint that dislocates or feels loose, often due to a torn labrum or stretched capsule
- Frozen shoulder: severe stiffness from inflammation and tightening of the joint capsule
- Biceps tendon injuries: fraying or rupture of the tendon connecting your biceps to the shoulder
- Loose bodies: fragments of cartilage or bone floating inside the joint
- Cartilage damage and certain fractures: including small fractures around the socket
- Shoulder infections: the joint can be cleaned out and irrigated arthroscopically
Sometimes the procedure is purely diagnostic. If imaging like an MRI hasn’t provided a clear answer, especially in cases where metal implants create interference, a surgeon may use the arthroscope simply to look inside the joint, assess the structures directly, and then decide on the best course of action.
Anesthesia Options
Most patients receive general anesthesia combined with a regional nerve block. The nerve block numbs the shoulder area and significantly reduces pain after you wake up. General anesthesia alone tends to produce higher pain scores in recovery and more readmissions, so the combination approach has become standard practice. In some cases, a nerve block alone is sufficient, though conversion rates to general anesthesia run between 9% and 13% when a block doesn’t provide complete coverage.
What Recovery Looks Like
Recovery depends heavily on what was repaired. A simple cleanup of loose tissue heals much faster than a rotator cuff repair or labral reconstruction. But the general pattern is similar for most patients.
You’ll go home the same day wearing a sling, which you’ll typically use for four to six weeks. During the first six weeks, you should avoid reaching, lifting, pushing, or pulling with the surgical arm. Reaching behind your back is also off limits. You can shower and let water run over the incisions, but don’t submerge them in a bath or pool for six weeks.
Physical therapy usually starts within the first few weeks, beginning with gentle passive motion (someone else moves your arm for you) and progressing gradually. Tendon tissue heals much more slowly than skin or muscle. A skin cut heals in a week or two, but rotator cuff tendon tissue needs roughly three months to heal. That’s why the restrictions feel long relative to the small size of the incisions.
Full return to sports or heavy overhead work generally takes four to six months, sometimes longer for competitive athletes or physically demanding jobs. Your surgeon and physical therapist will guide progression based on how the tissue is healing and how your strength is returning.
Success Rates and Patient Satisfaction
Outcomes vary by condition, but the numbers are generally encouraging. In studies of athletes who had arthroscopic shoulder stabilization, about 90% reported excellent or good results, and patients recovered an average of 93% of their pre-injury shoulder function. In one large series, 84% of patients said they would undergo the surgery again.
Results are strongest when the injury is acute and the tissue quality is good. Chronic tears, especially in the rotator cuff, are harder to repair and may not heal as reliably. Your surgeon can give you a realistic picture based on the specific damage found during your procedure.
Risks and Complications
Shoulder arthroscopy is considered low risk, but no surgery is risk-free. In a review of over 27,000 cases from the American Board of Orthopaedic Surgery database, 7.9% of patients experienced a surgical complication of some kind.
The most common issue is stiffness or scar tissue buildup inside the joint, occurring in about 2.2% of cases. Persistent pain, infection, and nerve injury are less common but possible. Interestingly, the patterns differ by sex: women are more likely to develop stiffness, while infection and nerve problems are more frequent in men.
Anesthesia complications are rare, at about 1% overall. Among those, roughly 62% were related to the regional nerve block rather than general anesthesia itself. These are usually temporary numbness or weakness that resolves on its own.