Osteoarthritis of the hip is a degenerative condition of the joint which causes progressive loss of articular or joint...
Total Hip Replacement
Evolution of Total Hip Replacement
Joint replacement surgeries have been performed for hundreds of years and techniques as well as component technologies and manufacturing techniques continue to evolve. Currently the most common material used for hip replacement implants are various metal alloys to include titanium, cobalt-chrome, and stainless steel as well as high grade plastics known as high molecular weight polyethylene or simply “poly”.
Most systems consist of three parts, the femoral component which replaces the native femoral head and neck, the acetabular component which replaces the acetabulum or “socket” portion of the ball and socket hip joint, and the poly which rests between these two component and acts as the new cartilage or bearing surface. Many different companies produce components used in total hip replacement and all of the currently used implants have been extensively studied and approved to be safe for use by the Food and Drug Administration.
Regardless of the implant chosen by the surgeon, due to the improvements in technology and material properties throughout the history of total joint procedures, current implants are the best that we have ever had and demonstrate improved wear rates, longer survivorship, higher success rates, more anatomic designs, and decreased need for revision surgery due to wear.
The Stryker AccoladeTM Total Hip Replacement System is an innovative new design for a total hip implant. It implements a tapered wedge design meaning that the size of the femoral component changes throughout its length with the goal of allowing for more anatomic fit within the proximal femur. The components are made from a cobalt-chromium alloy and come in a variety of sizes to allow for the surgeon to best match the patient’s native anatomy. The stem is coated with a special material to assist in facilitating new bone after implantation. Overall this system has been successfully utilized by surgeons around the would and has a >90% survivorship record at 10 year.