Rotator Cuff Repair & Shoulder Instability

The shoulder trades stability for motion. The ball of the humerus sits against a socket — the glenoid — that is shallow by design, closer to a golf tee than a cup. What keeps it centered is soft tissue: the labrum, a fibrocartilage rim that deepens the socket; the capsule and its ligaments; and the rotator cuff, four muscles whose tendons wrap the ball and press it into the socket as you move.

The biceps tendon also runs through the joint and attaches at the top of the labrum, which is why biceps problems and labral problems often travel together. When the cuff tears, the shoulder loses both strength and the compression that keeps it centered. When the labrum and capsule tear, the shoulder loses its checkrein against dislocation.

Cuff tears come in two flavors. Acute tears happen in a moment — a fall onto an outstretched arm, a hard yank on a leash or a line. Degenerative tears build over years as the tendon thins where it attaches to bone, and are increasingly common with age.

Not every tear behaves the same. Partial-thickness tears leave the tendon attached and often respond to therapy. Full-thickness tears have pulled away from the bone; they do not reattach on their own, and larger tears can retract and become harder to repair with time. Tear size, tendon quality, how much the muscle has atrophied, and your demands all shape the recommendation.

The long head of the biceps runs through the shoulder joint and anchors at the top of the labrum, and it is a frequent troublemaker in both of the problems above. It can fray and inflame alongside a cuff tear, or the labral anchor itself can tear — a SLAP tear, common in throwers and after falls onto the arm.

Biceps pain is typically felt at the front of the shoulder and can ache down into the upper arm with lifting and curling motions. When the tendon is part of the problem, it is usually addressed in the same arthroscopy: a biceps tenodesis detaches the irritated tendon from its labral anchor and secures it to the humerus, taking it out of the joint while preserving biceps strength and contour. In our practice SLAP tears in adults are often managed this way rather than with direct repair, which has a high rate of stiffness in patients beyond their earliest sporting years.

When the shoulder dislocates, the labrum usually tears off the front rim of the socket — a Bankart tear. Each dislocation stretches the capsule and can chip away bone from the socket rim and the back of the ball, making the next dislocation easier. That is why instability tends to be a progressive problem, especially in young athletes in contact and overhead sports.

The key fork in the road is bone. If the socket rim is intact, the torn labrum can be repaired arthroscopically. If repeated dislocations have worn away a meaningful portion of the rim, repairing soft tissue alone fails too often — the deficient bone has to be addressed, most commonly with a Latarjet procedure, which transfers a small block of bone with an attached tendon to the front of the socket.

• Rotator cuff: pain over the outside of the shoulder and upper arm, worse reaching overhead or behind the back, night pain that wakes you when you roll onto that side, and weakness lifting away from the body.
• Biceps / SLAP: pain at the front of the shoulder, aching into the upper arm with lifting or curling, and deep pain with overhead throwing.
• Instability: a dislocation that needed a reduction, a shoulder that slips or "clunks" with throwing or overhead positions, apprehension with the arm cocked, and a sense the shoulder cannot be trusted.
• Sudden weakness after a distinct injury deserves prompt evaluation — acute, retracted tears are easier to repair early.

Examination localizes the problem: strength testing isolates each cuff tendon, and apprehension and relocation maneuvers reproduce instability. X-rays show bone — dislocation damage, rim wear, and the shape of the acromion above the cuff.

MRI shows the soft tissue: which tendon is torn, how far it has retracted, the condition of the muscle, and labral tears. When bone loss matters to the decision — usually after repeated dislocations — a CT scan measures it precisely. The imaging is read alongside your story and your goals, not in isolation; plenty of shoulders with imperfect MRIs work fine, and treating the picture rather than the patient is how the wrong operations happen.

It is worth saying plainly: many shoulder problems do not need an operation. Partial cuff tears, degenerative tears in lower-demand shoulders, and many first-time dislocations in older patients are managed well with therapy focused on cuff and scapular strength. A meaningful part of what we do in clinic is laying out that path.

Surgery earns its place when a full-thickness cuff tear follows an acute injury, when weakness and night pain persist despite a genuine course of therapy, or when a tear is likely to enlarge and become unrepairable with waiting. For instability, the math shifts with age and sport: a young athlete in a contact or overhead sport who has dislocated has a high chance of dislocating again, and each recurrence costs bone and cartilage — which is why stabilization is often recommended earlier in that group, while bone loss drives the choice between arthroscopic repair and a Latarjet.

• Stop nicotine in every form — it measurably impairs tendon-to-bone healing, which is the whole point of a cuff repair.
• Hold anti-inflammatories and blood thinners as directed in your pre-op instructions.
• Set up physical therapy before surgery day; early protected motion is scheduled, not improvised.
• Arrange button-up or zip-front shirts, a recliner or wedge pillow for sleeping more upright, and a driver.
• Review our preparing for major shoulder surgery checklist for what to have at home and what to bring.

1. Anesthesia. General anesthesia with a regional nerve block that handles most of the first day's pain.
2. Arthroscopy and survey. Through small portals, the joint and the space above the cuff are inspected, and the biceps tendon and labrum are assessed — problems there are addressed in the same operation, including biceps tenodesis when the tendon is part of the pain.
3. Rotator cuff repair. The tendon edge is freshened and the bone prepared, then the tendon is reattached with suture anchors, restoring the footprint where it tore away.
4. Stabilization. For instability, the torn labrum is repaired back to the socket rim with anchors and the stretched capsule is tensioned. When bone loss makes soft-tissue repair unreliable, the Latarjet transfers the coracoid with its attached tendon to the front of the rim through an open incision.
5. Closure. Portals are closed and the arm goes into a sling. Nearly all of this surgery is same-day; you go home within hours.

Cuff repairs and stabilizations share a logic: protect the repair while it heals to bone, restore motion in stages, then earn strength and sport back with testing rather than the calendar. The timelines below follow our published protocols — your post-op instructions are the final word.

Weeks 0 to 6

A sling for about six weeks protects the repair. Therapy starts within days with protected, mostly passive motion; lifting with that arm is capped at a few pounds. After a Latarjet, motion is deliberately limited further for the first three weeks.

Weeks 6 to 12

The sling comes off as week six approaches, active motion progresses, and light strengthening begins. Lifting limits rise gradually — think twenty pounds, not body weight. Most desk work is manageable well before this; physical work waits.

Months 3 to 6

Progressive strengthening, then a return to overhead, throwing, and contact sport — generally beginning around the three-month mark at the earliest, and only after passing return-to-sport testing. Full comfort, particularly sleeping flat and overhead endurance, commonly takes six months or more.

Driving

Most patients drive once they are out of the sling for daily activities and off narcotic medication — the limiting factor is controlling the wheel safely with the operated arm.

Possible complications include infection, bleeding, blood clot, stiffness, temporary numbness from the nerve block, and anesthesia risks. Specific to the cuff: the repair can fail to heal or can retear, and that risk rises with tear size, tendon quality, age, and nicotine use. Specific to stabilization: instability can recur, particularly with early return to contact sport, and the Latarjet carries additional, uncommon risks — nerve irritation and issues with the transferred bone or its hardware.

No surgeon can guarantee an outcome. What you can expect is a candid assessment of which operation fits your shoulder — and whether one is needed at all.