Rotator Cuff Repair Surgery

Introduction

The rotator cuff is a group of four muscles and their tendons that surround the shoulder joint. These tendons help lift and rotate the arm while keeping the ball of the upper arm bone centered in the shoulder socket. A rotator cuff tear occurs when one or more of these tendons become torn, either from an injury or from gradual wear over time (Figure 1). Rotator cuff repair surgery is an operation performed to reattach a torn tendon to the upper arm bone (humerus). The goal of surgery is to reduce pain, restore shoulder strength, and improve arm function so patients can return to their normal daily activities.

Who Might Benefit from Rotator Cuff Repair Surgery?

Rotator cuff repair surgery is usually recommended when a tendon has been completely torn or when symptoms have not improved after several months of non-operative treatment. Surgery may also be advised for patients with an acute traumatic tear, especially if the injury causes significant weakness or occurs in someone who is active and wants to return to work or sports. Many patients with chronic tears first try treatments such as activity modification, physical therapy, anti-inflammatory medications, and sometimes corticosteroid injections. If pain and weakness continue despite these treatments, surgery may provide the best chance of restoring shoulder function.

How is Rotator Cuff Repair Surgery Performed?

Today, most rotator cuff repairs are performed using arthroscopic (keyhole) surgery. During the procedure, the surgeon makes several small incisions around the shoulder and inserts a tiny camera, called an arthroscope, along with specialized surgical instruments (Figure 2). The torn tendon is first cleaned and prepared, and the area of bone where it normally attaches is refreshed to encourage healing. Small devices called suture anchors are placed into the upper arm bone, and strong stitches attached to these anchors are passed through the torn tendon. The tendon is then securely tied back to the bone, allowing it to heal over the following months. In some cases, additional procedures, such as removing inflamed tissue or trimming bone spurs, may also be performed.

Recovery from Rotator Cuff Surgery

Recovery after rotator cuff repair requires patience because the repaired tendon needs time to heal firmly to the bone. Most patients wear a sling for 4 to 6 weeks to protect the repair. During this time, physical therapy usually begins with gentle passive range-of-motion exercises while avoiding movements that place stress on the healing tendon. Active shoulder motion and strengthening exercises are introduced gradually over the next several months. Most patients regain good everyday function within 3 to 6 months, although full recovery—including strength and endurance—often takes 6 to 12 months. Following the rehabilitation program carefully and avoiding heavy lifting too soon are among the most important factors for a successful outcome.

Potential Complications of Rotator Cuff Repair Surgery

As with any operation, rotator cuff repair carries some risks. Although uncommon, complications can include infection, bleeding, blood clots, injury to nearby nerves or blood vessels, shoulder stiffness, ongoing pain, and problems with anesthesia. The repaired tendon may also fail to heal completely or may tear again, particularly if the original tear was large, the tendon tissue was of poor quality, or the shoulder is stressed before healing is complete. Patients who smoke, have poorly controlled diabetes, or do not follow their rehabilitation program also have a higher risk of complications.

Results of Rotator Cuff Repair Surgery

For most patients, rotator cuff repair surgery provides significant pain relief and improved shoulder function. Studies show that the majority of patients experience less pain, greater strength, and improved ability to perform daily activities after surgery. Small and medium-sized tears generally have the highest healing rates, while larger tears have a greater chance of failing to heal or re-tearing. Even when a repaired tendon does not heal completely, many patients still experience meaningful improvements in pain and shoulder function. A successful outcome depends on several factors, including the size of the tear, the quality of the tendon tissue, the patient’s overall health, and their commitment to rehabilitation.

Summary

Rotator cuff repair surgery is used to fix a torn tendon in the shoulder. It is usually recommended when the tendon is completely torn or when pain and weakness do not improve with physical therapy and other treatments. Most repairs are done through small incisions using a camera and special instruments (arthroscopic surgery) to reattach the tendon to the bone. Recovery takes several months and includes wearing a sling and completing a physical therapy program. Most people have less pain, stronger shoulders, and better movement after surgery, but following the rehabilitation plan is essential for the tendon to heal properly.

Edited by Stephen Pinney MD, July 26th 2026.