Shoulder Arthroscopy: Indications, Recovery, Risks

Shoulder arthroscopy is a minimally invasive surgery using a small camera (arthroscope) and narrow instruments through small incisions ("portals") to diagnose and treat problems inside and around the shoulder joint.⁶

Indications

Main reasons this surgery is recommended:

Persistent shoulder pain or loss of function despite appropriate non-surgical care (activity modification, medications, injections, physical therapy).⁶
Rotator cuff tear needing repair or debridement.
Labral tear and instability (recurrent dislocations/subluxations) needing stabilization.
Biceps tendon pain/tearing (tenotomy or tenodesis).
Subacromial bursitis/impingement, acromioclavicular (AC) arthritis, or calcific tendinitis requiring arthroscopic treatment.
Adhesive capsulitis (frozen shoulder) requiring capsular release after prolonged nonoperative failure.

Common reasons to delay or avoid surgery:

Absolute: active infection (skin, joint, dental, urinary, or systemic).
Relative: poor medical optimization (uncontrolled diabetes, severe cardiopulmonary disease), active nicotine use, or inability to participate in rehabilitation.

Benefits and alternatives

Benefits:

Smaller incisions, typically less soft-tissue disruption than open surgery.⁶
Pain reduction and improved function when the underlying diagnosis is addressed.
Ability to treat multiple problems during one procedure (for example: cuff tear plus biceps pathology).

Alternatives:

Physical therapy focused on rotator cuff/scapular strengthening and motion.
Anti-inflammatory strategies (topical or oral NSAIDs if safe), acetaminophen.
Corticosteroid injection (subacromial or glenohumeral) for selected conditions.
Activity modification, ergonomics, and gradual return-to-sport program.
Other surgery (open repair, tendon transfer, arthroplasty) when arthroscopy is unlikely to succeed (large irreparable tears, advanced arthritis, major bone loss instability).

Surgical procedure

The surgeon inserts an arthroscope and inspects the cartilage, labrum, rotator cuff, biceps tendon, and joint lining.
Saline fluid is used to improve visualization and control bleeding.
Common treatments include debridement (cleaning frayed tissue), bursectomy, bone spur removal, cuff repair, labral repair, biceps tenotomy/tenodesis, distal clavicle excision, and capsular release.
Repairs typically use suture anchors placed into bone to reattach tendon or labrum.
Portals are closed with small sutures or skin adhesive; a dressing is applied.

Key variants: arthroscopy may be diagnostic only, debridement only (faster recovery), or include tissue repair (slower recovery and longer protection).

Implant or graft specifics and MRI considerations

Many shoulder arthroscopies use no permanent implant. When repairs are done, suture anchors and sutures are commonly used.
Anchor types vary (metal, PEEK, or bioabsorbable/biocomposite); removal is uncommon and usually only for complications (infection, prominent hardware, failure).
Most modern anchors are MRI-conditional; MRI is usually possible but may create image artifact near the shoulder. Inform radiology that you have shoulder implants.
Metal detectors may occasionally alarm depending on implant type and sensitivity.

Typical anesthesia

Most commonly general anesthesia, often combined with a regional nerve block (interscalene or similar) for early pain control.
Nerve block effects can include temporary arm numbness/weakness; some patients have temporary hoarseness or shortness of breath.
Most cases are outpatient; some patients may stay overnight based on pain control, medical risk, or the specific procedure.

Recovery timeline

Recovery depends on what is performed. Debridement/decompression typically progresses faster than cuff/labral repair.

Time point	Pain and swelling (expected trajectory)	Immobilization/weight-bearing	Activity and restrictions	Physical therapy
Days 0-3	- Moderate pain first 24-72 hrs - Swelling/bruising common	- Sling for comfort (repair: full-time) - No lifting	- Hand/wrist/elbow motion - Avoid reaching/overhead	- Start home program day 1 - Repair: passive motion only
14 days	- Pain improving; taper opioids common - Swelling persists	- Debridement: sling as needed - Repair: sling most of day	- Wound check; sutures removed if present - No lifting/pushing/pulling	- Debridement: active ROM begins - Repair: passive ROM goals set
4 weeks	- Activity soreness common	- Repair/stabilization: sling often continues per protocol	- Light daily activities at waist level - Avoid sudden stretching	- Progress ROM; scapular control - Repair: no resisted cuff work
8 weeks	- Pain typically mild/intermittent	- Most patients out of sling (repair dependent)	- Begin light strengthening (if cleared) - Avoid heavy overhead work	- Strength, endurance, posture - Sport-specific prep begins later
12 weeks	- Stiffness may persist; strength improving	- No brace	- Many return to light sports/work - Avoid heavy labor unless cleared	- Progressive strengthening; function - Emphasize mechanics
6 months	- Ongoing gains possible	- No brace	- Many return to full activity - High-demand sports vary	- Maintenance program; return-to-sport testing

Risks and complications

Common:

Pain, swelling, bruising, and temporary stiffness.
Temporary numbness/weakness (especially if a nerve block is used).

Less common:

Infection (rare; risk is procedure- and patient-dependent). Modern series for arthroscopic rotator cuff repair report very low infection rates (for example ~0.11% in one large cohort).³
Re-tear or incomplete healing after tendon repair.
Persistent pain from arthritis or tendon degeneration not fully correctable by arthroscopy.

Rare but serious:

Blood clot (DVT/PE). Symptomatic VTE rates are low overall (about 0.21% across shoulder arthroscopy; higher in rotator cuff repair cohorts in some studies).²
Nerve or blood vessel injury, fracture, major stiffness requiring additional intervention.

Patient-specific risk modifiers:

Higher risk with nicotine use, poorly controlled diabetes, obesity, immunosuppression, prior surgery, prolonged immobilization, and history of blood clots.

Durability and revision risk

There is no single "years it lasts" number because shoulder arthroscopy is a technique used for different diagnoses.
Short-term safety: in a large population study, the overall 90-day complication rate (including reoperation) was about 1.23%, and the 1-year reoperation rate was about 3.8% (procedure-dependent).¹
Rotator cuff repair: long-term imaging re-tear rates vary widely by tear size, tissue quality, and age (reported 9.5% to 63.2% in studies with 10-18 years follow-up). Revision surgery rates at 10+ years were reported in the range of 3.8% to 15.4% across included studies.⁴
Instability (arthroscopic Bankart repair): recurrence risk varies by bone loss, Hill-Sachs engagement, and anchor number. Recent series report recurrence around 9%-10% in some cohorts, while older long-term systematic reviews reported higher recurrence (around 31%) and revision around 17% at 10 years.⁵
Common reasons for repeat surgery: re-tear or failed healing, recurrent instability, stiffness, infection, or progression of arthritis.

Practical instructions

Pain control: use a multimodal plan (ice, acetaminophen, NSAID if safe, and limited opioid only as needed). Do not mix opioids with alcohol or sedatives.
Constipation prevention if using opioids: hydration, fiber, stool softener, and an osmotic laxative if needed.
Wound care: keep dressings clean and dry; follow surgeon instructions for showering; avoid soaking (pool/ocean/bath) until cleared.
Sling: wear exactly as prescribed (repairs require protection to allow healing).
Activity: no lifting, pushing, or pulling until cleared; avoid sudden reaching or overhead motion early.
Driving: only when off opioids, alert, and able to control the wheel safely (often 1-2 weeks for debridement, longer for repairs and if the operated arm is dominant).
Return to work (typical ranges): desk work 3-10 days (debridement) or 2-6 weeks (repairs); manual labor commonly 3-6+ months (repairs).
Travel/flying: walk every 1-2 hours on long trips, hydrate, and do ankle pumps; follow your surgeon guidance on clot prevention based on your risk profile.
Red flags (urgent): fever with increasing shoulder pain, worsening redness or drainage, chest pain/shortness of breath, new calf swelling/pain, sudden loss of arm/hand function, or uncontrolled pain.

FAQ

How much pain is normal? Highest in the first 2-3 days; improves over 1-2 weeks. Repairs remain sore longer.
When can I shower? Usually after 24-72 hours if permitted by your dressing; do not soak until cleared.
Why is my arm numb or weak? Often from a nerve block; typically resolves within 12-24 hours (sometimes longer).
When can I drive? When off opioids and you can safely control the vehicle; timing depends on repair vs debridement.
Do I need PT? Most patients do; repairs usually start with passive motion, then progress to strengthening.
Will an MRI be possible later? Usually yes; tell radiology about anchors/implants.
What are infection signs? Increasing redness, warmth, drainage, fever, or worsening pain.
What are clot warning signs? Calf swelling/pain, chest pain, shortness of breath.

Disclaimer: This handout is educational and not individualized medical advice. Follow your surgeon's specific instructions and rehabilitation protocol.

Shoulder Arthroscopy