What is the difference between total and partial hip replacement?

A total hip replacement replaces both damaged surfaces of the hip joint: the ball at the top of the thigh bone and the socket in the pelvis. The damaged femoral head is replaced with an artificial ball attached to a stem, while the hip socket is fitted with an artificial cup.

A partial hip replacement, also called hemiarthroplasty, usually replaces only the ball portion of the joint while keeping the patient’s natural hip socket. It is commonly considered for certain hip fractures, particularly in older patients, rather than for widespread hip arthritis.

The main difference

• Total hip replacement: Both the ball and socket are replaced.
• Partial hip replacement: Usually only the femoral head is replaced.
• Total replacement is commonly used for advanced arthritis or extensive joint damage.
• Partial replacement is more often used for selected fractures where the socket remains relatively healthy.

At ASIC Clinic, Dr. Atul Mishra reviews the patient’s age, X-rays, bone quality, activity level, joint damage, and overall health before deciding which type of hip replacement is appropriate. Total hip replacement is currently part of his joint replacement practice.