Hip
The hip is one of the largest weight-bearing joints in the body. When it’s working properly, it lets you walk, sit, bend, and turn without pain. Unlike the shoulder, the hip sacrifices degree of movement for additional stability. To keep it moving smoothly, a complex network of bones, cartilage, muscles, ligaments, and tendons must all work in harmony.
The hip is a ball-and-socket joint where the head of the femur articulates with the cuplike acetabulum of the pelvic bone. The acetabulum fits tightly around the head of the femur. The ball is normally held in the socket by very powerful ligaments that form a complete sleeve around the joint (the joint capsule). The capsule has a delicate lining (the synovium). The head of the femur is covered with a layer of smooth cartilage which is a fairly soft, white substance. The socket is also lined with cartilage. This cartilage cushions the joint, and allows the bones to move on each other with very little friction.
An x-ray of the hip joint usually shows a “space” between the ball and the socket because the cartilage does not show up on x-rays. In the normal hip this “joint space” is approximately 1/4 inch wide and fairly even in outline.
Learn more about common conditions:
Broken Bones, Fractures and Injury
Diseases and Syndromes
- Developmental Dislocation (Dysplasia) of the Hip
- Hip Bursitis
- Inflammatory Arthritis of the Hip
- Osteoarthritis of the Hip
- Osteonecrosis of the Hip
- Snapping Hip
- Transient Osteoporosis of the Hip
Arthroscopy and Reconstruction
Pain Syndromes
Treatment and Joint Replacement
Joint Replacement
Synovitis of the Hip
Synovitis is swelling (inflammation) in the synovial membrane that lines some of your joints, including your hip joint, and can cause considerable pain. If left untreated, your hip pain may continue to worsen, which can make movement increasingly difficult. You can develop more and more synovitis which can eventually lead to the destruction
Osteonecrosis of the Hip
Also known as avascular necrosis (AVN), osteonecrosis of the hip can cause pain which can be debilitating in and around the hip joint. In the vast majority of cases, the condition worsens over time, and without treatment, it can cause the tissue in the hip to die, and the affected
