Connecting the pelvic girdle with the lower limb, the hip joint provides stability while allowing diverse movements in different directions. It consists of a synovial articulation formed by a ball and socket, where the head of the femur is the ball and the acetabulum of the pelvic bone is the socket.
Movements.The hip joint includes multiaxial movements, such as:
- Flexion.
- Extension.
- Abduction.
- Medial and lateral rotation.
- Circumduction.
The hip joint consists of two articular surfaces: the head of the femur and the acetabulum.
The head of the femur.
Appearing as a semi-sphere, it is covered by thick articular cartilage, except for the fovea for the ligament of the head of the femur, which connects the two surfaces.