Acetabular labrum

Acetabular labrum is a ring of cartilage that surrounds the acetabulum of the hip. The function of the labrum is to deepen the acetabulum and provide stability to the hip joint.

Anatomy

The acetabular labrum is a fibrocartilaginous structure that surrounds the acetabulum. It is triangular in cross-section and its base is fixed to the acetabulum, while the free edge is thin and sharp. The labrum increases the depth of the acetabulum by up to 50%, providing more stability to the hip joint.

Function

The main function of the acetabular labrum is to deepen the acetabulum and provide stability to the hip joint. It also acts as a shock absorber, lubricates the joint, and distributes the force applied to the hip joint.

Clinical significance

Injury to the acetabular labrum can occur from trauma, structural abnormalities, or degenerative processes. This can lead to hip pain and instability. The diagnosis of labral tears can be challenging, as the symptoms can be similar to other hip disorders. Treatment options for labral tears include physical therapy, injections, and surgery.

See also

• Hip joint
• Acetabulum
• Labral tear

References

Acetabular labrum Resources
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