Hip Replacement Surgeon. Living with constant hip pain can keep you off your feet and make getting around difficult. A hip replacement may be an option to help you get back to your active lifestyle. A hip replacement is a common procedure performed to treat osteoarthritis and hip injuries. It’s an effective treatment when other options, such as medication or physical therapy, fail to relieve pain and stiffness. Causes of hip pain The ball-and-socket joint of your hip is the largest joint in your body. There are a number of diseases that can cause the cartilage in your hip joint to break down, resulting in friction and pain. Hip Replacement Surgeon.