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Michigan Sports and Spine

Glenoid Labrum Injury

Overview
The head of the upper arm bone (humerus) sits in a shallow socket in the shoulder blade called the glenoid.  The head of the upper arm bone is usually much longer than the socket, and a soft fibrous tissue rim called the labrum surrounds the socket to help stabilize the joint.  The labrum deepens the socket so that the head of the humerus fits better.  A glenoid labrum injury is a tear or injury to this soft tissue rim.

Causes
Trauma or injury from shoulder dislocation
Repetitive shoulder motion

Symptoms

Pain, usually with overhead activities
Catching, locking, popping, or grinding
Occasional night pain or pain with daily activities
A sense of instability in the shoulder
Decreased range of motion
Loss of strength

Diagnosis
Physical examination and medical history consultation
CT scan
MRI

Treatment
Anti-inflammatory medication
Rest
Physical therapy
Surgery

Source: http://orthoinfo.aaos.org/topic.cfm?topic=a00426

 

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