Hip

Normal Anatomy of the Hip joint

Hip Anatomy

The thigh bone, femur, and the pelvis, acetabulum, join to form the hip joint. The hip joint is a “ball and socket” joint. The “ball” is the head of the femur, or thigh bone, and the “socket” is the cup shaped acetabulum.

The joint surface is covered by a smooth articular surface that allows pain free movement in the joint.

The cartilage cushions the joint and allows the bones to move on each other with smooth movements. This cartilage does not show up on X-ray, therefore you can see a “joint space” between the femoral head and acetabular socket.

Pelvis

The pelvis is a large, flattened, irregularly shaped bone, constricted in the center and expanded above and below. It consists of three parts: the ilium, ischium, and pubis.

The socket, acetabulum, is situated on the outer surface of the bone and joins to the head of the femur to form the hip joint.

Femur

The femur is the longest bone in the skeleton. It joins to the pelvis, acetabulum, to form the hip joint.

Conditions

Hip Instability

Hip Instability

The hip plays an important role in supporting the upper body weight while standing, walking and running, and hip stability is crucial for these functions. The femur (thigh bone) and acetabulum (hip bone) join to form the hip joint, while the labrum (tissue rim that seals the hip joint) and the ligaments lining the hip capsule maintain the stability of the hip.

Hip Fracture

Hip Fracture

The hip joint is a “ball and socket” joint. The “ball” is the head of the femur, or thigh bone, and the “socket” is the cup shaped acetabulum. The joint surface is covered by a smooth articular surface that allows pain free movement in the joint.

Procedures

Total Hip Replacement THR

Total Hip Replacement THR

Total hip replacement is a surgical procedure in which the damaged cartilage and bone is removed from the hip joint and replaced with artificial components. The hip joint is one of the body's largest weight-bearing joints, located between the thigh bone (femur) and the pelvis (acetabulum).

Hip Resurfacing

Hip Resurfacing

Hip resurfacing is an alternative to total hip replacement surgery where both the ball and socket of the hip joint are completely removed and replaced with plastic, metal, or ceramic prosthetics.

Revision Hip Surgery

Revision Hip Surgery

Revision hip replacement is a complex surgical procedure in which all or part of a previously implanted hip-joint is replaced with a new artificial hip-joint. Total hip replacement surgery is an option to relieve severe arthritis pain that limits your daily activities. During total hip replacement the damaged cartilage and bone is removed from the hip joint and replaced with artificial components.

Non-surgical Treatment of Hip

Non-surgical Treatment of Hip

The hip joint is a ball and socket joint and is the largest weight-bearing joint in the human body. The head of the thigh bone or femur forms the “ball” and the acetabulum of the pelvis is the “socket”. These bones join together to form the hip joint.

Robot-assisted Hip Replacement

Robot-assisted Hip Replacement

Degenerative joint disease (DJD), a common cause of hip pain, is a chronic condition hampering the quality of life of affected individuals. There are different types of DJD and the most common ones include osteoarthritis (OA), post-traumatic arthritis, rheumatoid arthritis (RA), avascular necrosis (AVN), and hip dysplasia.

Minimally Invasive Approaches to the Hip

Minimally Invasive Approaches to the Hip

The hip joint is one of the body's largest weight-bearing joints and is the point where the thigh bone (femur) and the pelvis (acetabulum) join. It is a ball and socket joint in which the head of the femur is the ball and the pelvic acetabulum forms the socket. The joint surface is covered by a smooth articular cartilage that cushions and enables smooth movements of the joint.

Partial Hip Replacement

Partial Hip Replacement

The hip joint is one of the body's largest weight-bearing joints and is the point where the thigh bone (femur) and the pelvis (acetabulum) unite. It is a ball and socket joint in which the head of the femur is the ball and the pelvic acetabulum forms the socket. The joint surface is covered by a smooth articular cartilage that cushions and enables smooth movements of the joint.

Fracture Care

Fracture Care

The hip joint is a “ball and socket” joint. The “ball” is the head of the femur or thigh bone and the “socket” is the cup shaped acetabulum. The joint surface is covered by a smooth articular surface that allows pain free movement in the joint.

Click on the topics below to find out more from the orthopedic connection website of American Academy of Orthopaedic Surgeons.