The shoulder is the most mobile joint in your body. The ball (or “head”) of the arm bone (humerus) rests in a shallow socket called the glenoid, much like a golf ball fits on a tee. To help make the socket deeper, the outer rim of the glenoid is ringed by tough, flexible tissue called the labrum.
SLAP stands for “Superior Labrum Anterior to Posterior.” This means that the upper rim of the labrum has been torn from front to back. The tear happens where the biceps tendon anchors to the labrum. Common causes of a SLAP lesion include:
Falling on an outstretched hand
Repeated overhead motions (such as throwing)
To diagnose the problem, your healthcare provider will examine your arm and shoulder. This includes moving your arm in certain directions to test for symptoms. Imaging tests, such as an MRI, arthrogram, or CT scan, may also be done to evaluate the lesion and to look for other injuries like fractures or rotator cuff tears. These provide your healthcare provider with a detailed view of the tissues inside your shoulder joint.
Rest and anti-inflammatory medicines are often the first line of treatment. Physical therapy can also be used to strengthen the muscles in the shoulder. This helps keep the joint stable. If these treatments aren’t enough, your healthcare provider may recommend surgery to repair the labrum.
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