21. Compared to the acetabulum ( at the hip-joint ) the glenoid cavity is relatively shallow. 22. The main types are the result of either laxity of the supporting capsule or an abnormal acetabulum . 23. This in turn is done by successive attachment and detachment of the oral sucker and the acetabulum . 24. The joint space between the femoral head and the superior acetabulum is normally at least 2 mm. 25. The pelvis is high and narrow and the acetabulum is relatively shallow, also allowing for greater flexibility. 26. This would involve replacing both the acetabulum ( hip socket ) and the head and neck of the femur. 27. This procedure involves replacing both the acetabulum ( hip socket ) and the head and neck of the femur. 28. Located on the posterior side of the hip joint, it is a strong femoral head in the Acetabulum . 29. Posterior dislocation is the most prevalent, in which the femoral head lies posterior and superior to the acetabulum . 30. It consists of the head of the femur ( the ball ) and the acetabulum ( the socket ).