Shoulder Labral Repair

What the labrum is

Your shoulder socket is shallow — more a saucer than a cup. Around its rim sits a ring of firm, rubbery tissue called the labrum. It deepens the socket, and just as importantly it is where the ligaments that hold the joint together anchor.

What a dislocation does

When the ball comes out of the socket — nearly always forward, out the front — it drags the labrum off the rim on its way. That is a Bankart tear.

Put the shoulder back in and the ball returns to the socket, but the torn labrum does not reattach itself. The bumper is gone and the ligaments are loose. The shoulder now comes out more easily than it did the first time, and each dislocation makes the next one likelier — and can chip bone off the rim, which makes the whole problem harder to fix.

Age at the first dislocation is the single biggest predictor of what happens next. In teenagers and people in their early twenties, particularly athletes, a shoulder treated without surgery dislocates again the large majority of the time. Over forty, the odds are far lower — and in that age group a dislocation more often tears the rotator cuff than the labrum, which is a different problem.

How it feels between dislocations

• Apprehension. The classic sign. With your arm out to the side and rotated back — the throwing position, or reaching into the back seat — the shoulder feels like it is about to leave. People start avoiding that position without quite realizing it.
• Slipping or clunking with certain movements.
• A dead arm feeling with overhead work.
• Ache after activity, and loss of confidence in the arm.

Some instability goes the other way — out the back, from pushing or bench pressing rather than a dramatic dislocation. That is a posterior labral tear, and the repair is much the same, with different positions to avoid afterward.

Who needs surgery

• More than one dislocation. Once it has happened twice, it will very likely happen again.
• A first dislocation in a young athlete, especially in a contact or overhead sport. In this group I discuss repairing it after the first one, because the odds of recurrence are so high and each repeat costs more bone.
• Apprehension that limits your life — work overhead, sleep, sport.
• Failed rehabilitation. Strengthening genuinely stabilizes some shoulders, particularly ones that are loose without ever having fully dislocated. It is always worth a proper try in that group.

One important caveat: if a significant piece of bone has been worn or chipped off the front of the socket, a labral repair alone is likely to fail. Those shoulders need a bone-grafting operation instead. That is why I look carefully at the imaging before promising you this repair.

How the operation goes

1. Anesthesia. A nerve block plus a general anesthetic. You go home the same day.
2. Arthroscopy. A camera and instruments through small punctures around the shoulder.
3. Assess the damage. Where the labrum tore, how much, whether bone is missing, and whether the cuff or biceps is involved.
4. Free and prepare the labrum, and roughen the rim of the socket so the tissue can heal back to it.
5. Place the anchors. Small suture anchors go into the rim of the socket.
6. Re-tension and tie. The stitches pull the labrum and its stretched ligaments back onto the rim, restoring both the bumper and the tension that keeps the ball in place.

Recovery, and the position you must avoid

The repair is strong on the day of surgery and weak for the six weeks it takes to heal to bone. Almost everything about early recovery is about staying out of the position that pulls on it.

• If the repair was at the front (the usual case): avoid rotating the arm outward, and above all avoid the combination of arm out to the side and rotated back — the throwing or hands-up position. Also avoid reaching backward behind your body.
• If the repair was at the back: avoid rotating the arm inward and reaching across your body, and no pushing.

• First 2 weeksSling. Elbow, wrist and hand motion from day one. Gentle shoulder motion within the safe range that your therapist sets. Ice. Take pain medicine the first evening before the block wears off. Follow-up around two weeks.
• 2–6 weeksOut of the sling, motion increasing steadily within the restrictions. Gentle rotator cuff and shoulder-blade work begins. No lifting, no pushing, no going into the forbidden position.
• 6–12 weeksRestrictions lift gradually. Full motion is the goal, and strengthening builds through this window.
• 3–4 monthsHeavier strengthening, and sport-specific work — throwing programs start here, not before.
• 4–6 monthsReturn to contact and collision sport, once strength and control testing say you are ready. Coming back early is the most common reason a good repair fails.

The risks, honestly

• It dislocates again The main risk. Repair reduces recurrence dramatically compared with leaving it alone, but does not abolish it — highest in young athletes in collision sports, and in shoulders where bone was already missing from the rim.
• Lost external rotation Tightening the front of the shoulder can cost a little outward rotation. Usually unnoticeable in daily life, but it matters to throwers, and it is a real trade-off we discuss beforehand.
• Stiffness Uncommon, and the reason motion starts early even within the restrictions.
• Nerve irritation Usually temporary numbness or weakness from the block.
• Infection Rare with arthroscopic surgery.
• Arthritis later in life Shoulders that have dislocated repeatedly are more prone to arthritis decades on — another argument for stabilizing sooner rather than after the fifth episode.