Femoroacetabular joint

The femoroacetabular or hip joint is a large ball and socket synovial joint between the femoral head and the acetabulum.

Articulations

The femeroacetabular joint is a ball and socket joint that joins the femoral head to the acetabulum.

The ball and socket articulation allows for a high degree of mobility. In comparison to the shoulder joint it permits less range of movement due to the increased depth and contact area, but displays far more stability. The acetabular labrum increases the depth of the joint1.

The joint is surrounded by a fibrous capsule, which is attached to the acetabulum, and then attaches to the proximal aspect of the femur1. Thickenings of this capsule constitute the ischiofemoraliliofemoral and pubofemoral ligaments.

Muscles

There are a number of different muscles that permit flexion/extension, adduction/abduction, and internal/external rotation of the hip joint. See: movements of the thigh.

Bursae

Subtendinous, iliopectineal and greater trochanteric bursae, and bursae between gluteus maximus and vastus lateralis exist near the joint1.

Branches of the medial circumflex femoral, obturator, and superior and inferior gluteal arteries supply the joint in adults2. A branch may also be present in the ligaments teres.

There is nerve supply to the femeroacetabular joint provided by the femoral, obturator and superior gluteal nerves, and the nerve to quadratus femoris2.


Lower limb anatomy
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Article Information

rID: 45791
Section: Anatomy
Synonyms or Alternate Spellings:
  • Femoroacetabular joints
  • Femoroacetabular articulation
  • Femoroacetabular articulations

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