Skip to main content
424-999-9648 Request Appointment Patient Portal

Shoulder Instability & Labrum Tears: The Latest in Arthroscopic Treatment

Chandran Orthopaedic Surgery Blog Shoulder Instability & Labrum Tears: The Latest in Arthroscopic Treatment

A shoulder dislocation is one of the most jarring injuries a person can experience. The sharp, sudden pain, the visible deformity, the helpless feeling of an arm that won't move — it's an experience most people desperately want to avoid ever repeating. Yet for many patients, once a shoulder dislocates, it becomes prone to doing so again.

Behind most cases of recurrent shoulder instability is a torn or stretched labrum — the ring of fibrocartilage that deepens the shoulder socket and provides critical stability to the joint. Today, advanced arthroscopic techniques allow surgeons to restore the labrum, tighten stretched ligaments, and return patients to full activity with remarkable precision and far less disruption than older open surgeries required.

The Role of the Labrum in Shoulder Stability

The shoulder is a ball-and-socket joint, but unlike the hip — which has a deep, stable socket — the shoulder's socket (called the glenoid) is relatively shallow. This design gives the shoulder its extraordinary range of motion but makes it inherently more vulnerable to instability.

The labrum compensates for this by acting like a gasket around the rim of the socket, effectively deepening it and creating a suction seal that keeps the ball of the humerus securely in place. The major stabilizing ligaments of the shoulder also attach to the labrum, meaning that when the labrum tears, it often compromises these ligaments as well.

Common Labrum and Instability Conditions We Treat

Bankart Tear

A tear of the anterior (front) labrum, almost always caused by a shoulder dislocation. The classic injury in young athletes. Without repair, the risk of repeat dislocation is very high — exceeding 80% in young active patients.

SLAP Tear

A tear of the Superior Labrum from Anterior to Posterior — the top of the labrum where the biceps tendon attaches. Common in overhead athletes (baseball, swimming, tennis) and in patients who fall on an outstretched arm.

Posterior Labrum Tear

A tear at the back of the shoulder socket. Seen in weightlifters and linemen in football who experience repetitive posterior loading. Can cause pain and a feeling of posterior instability.

Multidirectional Instability (MDI)

Instability in multiple directions, often related to generalized ligament laxity rather than a single traumatic event. May respond to physical therapy; surgical capsular tightening is reserved for cases that fail non-operative care.

Signs You May Have a Labrum Tear or Shoulder Instability

  • Your shoulder has dislocated once or more
  • A persistent feeling that the shoulder is "loose," may "pop out," or is about to give way
  • Deep shoulder pain, especially with reaching across the body or overhead
  • A clicking, catching, or grinding sensation inside the shoulder
  • Pain that woke you up at night or is limiting your sport or work activities
  • Weakness or "dead arm" sensation, particularly in throwing athletes

Arthroscopic Repair: The Current Standard of Care

Arthroscopic surgery for shoulder instability and labrum tears has become the preferred approach for most patients. Using the same small-portal technique as rotator cuff surgery, the surgeon passes a camera and instruments into the shoulder joint without requiring large incisions or muscle detachment.

Arthroscopic Bankart Repair

The cornerstone treatment for anterior instability following dislocation. The torn labrum is reattached to the rim of the glenoid using small suture anchors — devices the size of a pencil tip that are inserted into the bone and hold the repaired tissue securely in place. The shoulder's capsular ligaments are also tightened during the procedure to restore their normal tension.

Modern arthroscopic Bankart repair achieves excellent stability rates, with studies consistently showing a recurrence rate below 10–15% in well-selected patients — a dramatic improvement over the natural history of untreated instability.

SLAP Tear Repair or Biceps Tenodesis

Treatment of SLAP tears depends on the patient's age, activity level, and the type of tear. In younger overhead athletes, arthroscopic SLAP repair using suture anchors aims to restore the labrum's attachment and the biceps anchor. In older patients or those with degenerative changes, biceps tenodesis — repositioning the biceps tendon to a new, pain-free attachment point — is often preferred and delivers excellent results with a faster return to activities.

Remplissage Procedure

Some patients with recurrent dislocations develop a Hill-Sachs lesion — a dent in the back of the humeral head where it impacted the socket rim. When this lesion is large enough to "engage" with the socket during shoulder movement, standard Bankart repair alone may not be sufficient. The remplissage technique addresses this by filling the Hill-Sachs defect with the back rotator cuff tendon (infraspinatus), preventing it from catching on the socket edge. This elegant arthroscopic addition has significantly extended the range of instability cases that can be managed without open surgery.

"Arthroscopic shoulder stabilization has revolutionized care for active patients with instability. Today we can address the precise anatomy that failed — the labrum, the capsule, or the bony defect — in a single minimally invasive procedure."

When Open Surgery Is Needed: The Latarjet Procedure

In patients with significant bone loss from the front of the shoulder socket — typically those who have dislocated many times — arthroscopic soft tissue repair alone may not provide sufficient stability. In these cases, a bone-block procedure called the Latarjet (or coracoid transfer) is often the preferred solution. This procedure transfers a piece of bone from the front of the shoulder blade to the socket, rebuilding its rim and increasing stability dramatically. While the Latarjet is typically performed as a small open or mini-open procedure, arthroscopic versions are increasingly being developed and performed at high-volume centers.

Recovery After Arthroscopic Shoulder Stabilization

After arthroscopic Bankart or labrum repair, the repaired tissue needs time to heal securely to the bone — a process that takes approximately six weeks for initial healing and three to six months for full maturation. General recovery milestones include:

Is Surgery the Right Choice for You?

Not every labrum tear requires surgery. Many patients with small tears, or those who do not demand a highly functional shoulder, respond well to physical therapy focused on strengthening the dynamic stabilizers of the shoulder — the muscles that compensate for the structural damage.

Surgery is strongly recommended when instability is recurrent, when a young athlete sustains a first-time dislocation (due to high re-dislocation rates with non-operative care), or when pain and limited function persist despite an adequate course of rehabilitation.

The right answer for you depends on your anatomy, your activity level, and your goals. A thorough evaluation by an orthopedic shoulder specialist is the essential first step.

You Might Also Enjoy...