Your hip joints are one of your body’s largest and most vital ball-and-socket joints, which is why successful hip replacement surgery is so vital to one’s quality of life. The socket part is made up of a portion of the large pelvic bone called the “acetabulum.” The ball part is composed of the uppermost part of the thighbone, called the “femoral head.” When a person walks, runs or moves with their legs, the femoral head moves within the acetabulum in the same way a ball-and-socket joint moves.
Partial and total hip replacement implants are intended to mirror the way a natural hip works. In a natural hip joint there is a lining of cartilage between the acetabulum and femoral head that provides a cushion between the bones, preventing the rubbing of the bones and stopping joint damage. In partial or full metal-on-metal hip implants there is a liner that is designed to help the ball of the implant move easily within the socket; however, this often does not provide enough protection to prevent the rubbing of the two metallic pieces. In fact, it is the rubbing together of these two pieces that causes many of the complications associated with hip replacement.
Complications can derive not only from the rubbing of the metal pieces, but from the actual design of the hip implant as well. Other complications that can result from the design of the hip are loss of mobility, instability within the joint, spontaneous dislocation of the hip and many more serious side effects. Hip implants can offer pain relief and renewed freedom to the patients who receive them, but when companies fail to warn of the increased risks of implanting a certain type of implant, like the metal-on-metal hip implant, the consequences can be serious and at times debilitating. If you are suffering any adverse symptoms after hip replacement surgery, talk to your doctor and contact our firm.