What is a hip joint? Where is the hip joint?

In vertebrate anatomy, hip joint can refer to anatomical region and joint. The hip joint area is located in the lateral front of the hip joint and inside the iliac crest, covering the greater trochanter of femur.

The hip joint of children is far from being developed, which shows that the Y-shaped cartilage of acetabulum is not healed or the distance between the three bones is large, and only a small ossification center appears on the femoral head. The size ratio of acetabulum and femoral head is quite different, and the distance between them is wide. Congenital dislocation of hip joint is common in children, but its structure has not yet developed.

Extended data:

Anatomical structure:

Femoral articular surface occupies 2/3 of the head area and is embedded in acetabulum. The acetabular lunate surface surrounds the acetabular fossa, which is full of fat; The acetabular lip is attached to the acetabular edge to increase the depth of the acetabulum. The transverse ligament of acetabulum seals the acetabular notch, and nerves and blood vessels pass through this ligament to enter and exit the joint. The gap between acetabular depression and articular surface of femoral head is hip joint space, which is 4 ~ 5 mm wide for normal adults.

The upper part of the gap is very narrow, showing the distance between two opposite articular surfaces. The lower half is wider, showing the distance between the femoral head and acetabular fossa. On the X-ray film, although the lower edge of the femoral neck and the upper edge of the obturator foramen are not connected, * * forms a relatively natural arc curve, which is called the shame curve.

The joint capsule is generally thick, but the back is weak. Hip bone is attached to acetabulum and transverse ligament; In the femur, it is attached to the anterior intertrochanteric line, to the upper and lower trochanters, and to the posterior intertrochanteric crest of about 1cm.

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