Shoulder arthroscopy uses a small camera, the arthroscope, and specialized instruments introduced through portal incisions a few millimeters long. The surgeon sees the inside of the shoulder in high definition on a monitor and works through the same small openings, without the large incision and muscle disruption of traditional open surgery.
It has become the workhorse of shoulder surgery because so much can be done through it. The same arthroscopic setup is used to repair the rotator cuff, repair labral and SLAP tears, stabilize a dislocating shoulder, decompress an impinging space, treat AC joint arthritis, perform a biceps tenodesis, and remove loose bodies or inflamed tissue, as well as to evaluate the joint directly when imaging is inconclusive.
What shoulder arthroscopy treats
A single arthroscopic platform addresses a wide range of shoulder problems:
- Rotator cuff tears, repaired with suture anchors back to the bony footprint
- Labral tears, including Bankart repair for instability and SLAP repair at the top of the socket
- Subacromial impingement, treated with arthroscopic subacromial decompression
- AC joint arthritis, treated with distal clavicle excision
- Biceps tendon problems, addressed with biceps tenodesis
- Loose bodies and synovitis, removed or debrided; and direct diagnostic evaluation
How the decision is made
Arthroscopy is not the first answer for every shoulder. Many problems, including most impingement and many partial cuff tears, improve with physical therapy, activity modification, and selective injection. Arthroscopy is reserved for structural problems that surgery can fix: a symptomatic full-thickness cuff tear, recurrent instability with a labral tear, or impingement and AC arthritis that have not settled with conservative care.
MRI guides the plan before surgery, and the final treatment is often confirmed under direct vision once the structures are seen and probed during the procedure.
Conservative care comes first. Not every shoulder problem needs surgery, and Dr. Lee will recommend a structured course of physical therapy and selective injection when that is the right path. Arthroscopy is reserved for the structural problems that genuinely benefit from it.
When surgery is indicated, Dr. Lee performs all-arthroscopic repair using current-generation, anchor-based fixation. As a surgeon who helped design suture anchors and internal brace constructs, he brings particular attention to fixation technique. Shoulder arthroscopy is typically an outpatient procedure under regional anesthesia plus light sedation. When a repair is protected, a sling is generally worn for four to six weeks, followed by a progressive, disciplined therapy program.
What happens during the procedure
After regional anesthesia and light sedation, the surgeon makes several small portal incisions around the shoulder. Sterile fluid gently expands the joint and the subacromial space for visibility. The arthroscope is introduced through one portal and instruments through the others. The surgeon inspects the joint, the rotator cuff, labrum, cartilage, and biceps, then performs the indicated repair or decompression, securing tissue back to bone with suture anchors where needed. The portals are closed with a stitch or two, and the arm is placed in a sling.
Outpatient and anesthesia
Shoulder arthroscopy is usually performed as a same-day outpatient procedure. Regional anesthesia, often an interscalene nerve block, controls pain around the shoulder and is combined with light sedation. Most patients go home a few hours after surgery with the arm in a sling and a clear, written rehabilitation plan.
Recovery timeline
Recovery depends on what was done. A decompression recovers faster than a protected repair:
- Weeks 0–6Sling for a protected repair, typically four to six weeks. Passive or limited motion per the surgeon's protocol while the repair heals. Elbow, wrist, and hand motion encouraged. A decompression without a repair allows earlier active motion.
- Weeks 6–12Sling discontinued for repairs. Active range of motion progresses. Pain typically declines significantly. Therapy advances toward full motion.
- Months 3–6Progressive strengthening. Functional return for daily activities and light occupational use. Decompression-only patients are usually back to most activity earlier in this window.
- Months 6–12Return to sport, overhead work, and full strength for repair cases, which continues to improve up to a year after surgery, guided by restored strength and function.
What patients commonly misunderstand
What patients often misunderstand about shoulder arthroscopy:
- Small incisions do not mean a small recovery. The portals are only a few millimeters, but when a rotator cuff or labrum is repaired, the tissue still needs months to heal to bone. The recovery is driven by the biology of healing, not the size of the incisions.
- Not every shoulder problem needs a scope. Many cases of impingement and many partial cuff tears improve with physical therapy and selective injection. Arthroscopy is reserved for structural problems that surgery can actually fix and that have not settled with conservative care.
- Rehab is part of the surgery, not optional. The technical repair is one component; the outcome depends heavily on following the post-operative therapy. Skipping or rushing the protocol is a common cause of stiffness or re-tear after shoulder arthroscopy.
This page is general educational content authored by Dr. Lee. It is not a substitute for individual medical advice. Every patient's case is different, book a consultation to discuss yours.