Labral Tears, SLAP and Bankart

What the Labrum Does, and Why a Tear There Feels Different

The labrum is a ring of fibrocartilage rimming the shoulder socket, deepening a joint that would otherwise be too shallow to hold the ball of the upper arm bone reliably in place. A tear there doesn't behave like a tendon strain — it tends to produce a deep, hard-to-localize ache, a mechanical catch or clunk with specific arm positions, and, depending on where the tear sits, either pain with overhead loading or a sense that the joint itself is unstable. Where on the ring the tear happens is the single most useful piece of information for sorting out what's actually going on.

SLAP Tears: Damage at the Top, Near the Biceps Anchor

A SLAP tear — superior labrum, anterior to posterior — involves the part of the labrum where the long head of the biceps tendon attaches at the top of the socket. It shows up most in overhead athletes (throwers, swimmers, volleyball and tennis players) and in people who fall directly onto an outstretched arm, and the hallmark complaint is a deep catching or popping sensation with overhead reaching, often alongside a vague ache that's hard to pin to one spot. Unlike a rotator cuff tear, weakness usually isn't the leading symptom — the catching and the deep location of the pain are.

SLAP tears sit on a spectrum with rotator cuff tears in terms of overlapping symptoms, which is part of why they're commonly misdiagnosed at first; a rotator cuff tear is a common enough alternate explanation for shoulder catching that it's worth ruling in or out early 1Ref 1American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Rotator Cuff Tears.Establishes rotator cuff tears as a common alternate/overlapping cause of shoulder catching, used to explain why SLAP tears are commonly misdiagnosed at first..

Bankart Lesions: Damage at the Front, Tied to Dislocation

A Bankart lesion is a tear at the front-lower rim of the labrum, and it is the classic companion injury to a shoulder dislocation — common enough after a first traumatic dislocation that clinicians look for it routinely rather than treating it as a surprise finding 2Ref 2American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Chronic Shoulder Instability and Dislocation.Supports the Bankart lesion / dislocation association and elevated recurrence risk driving earlier consideration of surgical stabilization in active patients.. Because that part of the labrum is what resists the ball sliding forward out of the socket, a Bankart lesion's defining symptom isn't catching so much as instability: the joint feeling loose, sliding partway out (subluxing), or fully dislocating again with less force than the first time.

a labral tear that follows a dislocation and leaves the shoulder feeling loose is a different problem, functionally, than a labral tear that causes catching without any sense of looseness — even though both are called "labral tears." The first is an instability problem; the second is closer to a mechanical/overuse problem. When the shoulder feels loose is worth reading on its own if that looseness, not catching, is the main complaint.

Rehab, Injection, or Repair: How the Decision Gets Made

For SLAP tears, physical therapy focused on scapular mechanics and rotator cuff strength is a reasonable first step for many people, particularly when the tear is partial or the person isn't a high-demand overhead athlete. For Bankart lesions, the calculus leans more toward considering surgical stabilization sooner in younger, more active patients, because the recurrence risk after a first dislocation is meaningfully elevated and each additional episode can worsen the underlying bone and labral damage 2Ref 2American Academy of Orthopaedic Surgeons (OrthoInfo) (2024).Chronic Shoulder Instability and Dislocation.Supports the Bankart lesion / dislocation association and elevated recurrence risk driving earlier consideration of surgical stabilization in active patients..

The broader evidence on shoulder surgery has shifted toward caution when pain, rather than a clear mechanical or instability finding, is the main complaint: a large placebo-controlled trial found that subacromial decompression, a related but different shoulder procedure, added no clinically meaningful benefit over a sham operation or no treatment at all 3Ref 3Beard DJ, Rees JL, Cook JA, et al. (CSAW) (2018).Arthroscopic subacromial decompression for subacromial shoulder pain (CSAW): a multicentre, pragmatic, parallel group, placebo-controlled, three-group, randomised surgical trial.Supports that subacromial decompression surgery was not superior to placebo/no treatment, part of the general evidence base cited for caution before shoulder surgery when pain alone is the complaint., and a Cochrane review separately found that rotator cuff repair probably provides little or no added benefit over well-structured non-operative exercise for many tears 4Ref 4Karjalainen TV, Jain NB, Heikkinen J, et al. (2019).Surgery for rotator cuff tears.Supports that rotator cuff repair probably adds little clinically important benefit over non-operative exercise for many tears, part of the caution around shoulder surgery generally.. Labral repair for a true SLAP or Bankart lesion targets a different structure than either of those, but that evidence base is part of why clinicians increasingly want a genuine mechanical or instability finding — not pain alone — before recommending surgery.

Two Labral Tears, Two Different Follow-Up Questions

Because SLAP and Bankart tears point toward different problems, the useful next question differs by type. For catching without instability, the relevant follow-up is whether the pain and mechanical symptoms improve with several weeks of structured rehab, and if not, whether a SLAP repair versus continuing conservative care is worth weighing given the recovery time involved. For catching with instability, the relevant follow-up is how many episodes of slipping or dislocation have happened and how much force each one took — a shoulder dislocating with progressively less force is a different situation than one that dislocated once under high-energy trauma and has been stable since.

Age and activity level shift the calculus too. A labral tear in a younger, high-demand athlete tends to get evaluated more aggressively toward surgical repair, since the stakes of recurrent instability or ongoing catching are higher for someone relying on the shoulder for overhead sport. The same tear in someone with lower activity demands, or in an older adult where the labrum's normal wear-and-tear changes overlap with the injury, is more often managed with rehab first, since the functional cost of leaving it alone is lower and the surgical recovery is a real commitment of time.

What an Evaluation Usually Involves

A clinician working through suspected labral pathology starts with mechanism — a fall, a specific throwing motion, a dislocation event — and a set of hands-on tests that stress the labrum in different directions to localize where it's failing. MRI, often with contrast injected into the joint, is the standard imaging when surgery is being considered, since a plain X-ray won't show labral tissue. Function is frequently tracked with the DASH, a validated self-reported measure of arm, shoulder, and hand function, which gives an objective read on whether rehab is actually moving the needle before deciding whether repair is the next step 5Ref 5Hudak PL, Amadio PC, Bombardier C (Upper Extremity Collaborative Group) (1996).Development of an upper extremity outcome measure: the DASH (disabilities of the arm, shoulder, and hand).Describes the DASH as a validated self-reported outcome measure used to track rehab progress objectively..