Hip replacement surgery
Hip replacement surgery
Normal hip joint

Osteoarthritis of the hip

Osteoarthritis is the most common reason for hip replacement. In osteoarthritis, the cartilage that protects and cushions the joints breaks down over time. As the cartilage wears down, the bone surfaces rub against each other. This damages the tissue and bone, which then causes pain. The joint space in this hip joint is narrowed due to cartilage loss and bone spur formation.
Removal of cartilage from the hip socket and femur

Damaged cartilage and bone are removed from the hip socket (acetabulum) and the upper end of the femur.
Placement of hip socket component

Hip socket (acetabular) component is placed.
Placement of femoral component

Femoral component is placed.
Completed hip replacement

Hip replacement is complete.
Current as of: May 1, 2026
Author: WebMD Ignite Staff
Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.
To learn more about WebMD Ignite, visit webmdignite.com.
© 2024-2026 WebMD Ignite.
This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

