when do you need hip replacement
The most common reason for hip replacement is osteoarthritis in the hip joint. Your doctor might also suggest this surgery if you have: 1  Rheumatoid arthritis (a disease that causes joint pain, stiffness, and swelling). 2  Osteonecrosis (a disease that causes the bone in joints to die).3  Injury of the hip joint.ometimes the pain remains and makes daily activities hard to do. In this case, your doctor may order an x ray to look at the damage to the joint. If the x ray shows damage and your hip joint hurts, you may need a hip replacement. Healthy, active people often have very good results after hip replacement surgery.