Term: Hip Replacement Surgery

Glossary Definition

Last Updated: 2020-05-21


During hip replacement surgery, the ball and socket of the hip joint are completely removed and replaced with artificial materials. A metal ball with a stem (a prosthesis) is inserted into the femur (thigh bone) and an artificial plastic cup socket is placed in the acetabulum (a "cup-shaped" part of the pelvis). The prosthesis may be fixed in the central core of the femur with cement. Alternatively, a "cementless" prosthesis is used which has microscopic pores that allow bony ingrowth from the normal femur into the prosthesis stem. The cementless hip lasts longer and is especially an option for younger patients.

Total Hip Replacement versus Partial Hip Replacement

There are two types of hip replacement surgery: total and partial. At MCHP, research has focused on total hip replacement surgery.

Total hip replacement surgery is defined using:

Partial hip replacement surgery can be defined using:

For more information, see:

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