Hip Implant Basics
Our hip joint comprises of two major parts, which include a femoral head (ball) at femur (the top of your thighbone) that fits into the acetabulum (a rounded socket) in your pelvis. The ball rotates within the acetabulum’s curved surface. During a hip replacement surgery, the acetabulum is replaced by an acetabular. Besides, the femoral stem is implanted into the ball (the femoral head) and the femur and is fitted in the acetabulum. This helps in connecting the leg to the hip and enables movement.
What Is A Hip Implant Made Of?
Even though there are varied models and designs of hips that are built by a number of manufacturers, but there are three major elements of an artificial hip, which includes a stem that is implanted into the thigh bone (the femur); a cup that attaches to the pelvis and a ball that is attached to the top of the femur.
The modern hip implants, famous since the 1970s, are created by combining different materials, such as metals, ceramics and plastics. The most common material used for making hip implants is cobalt chrome, titanium and stainless steel. Most of the recent hip implant devices are metal-on-metal designs, which have been created with the hope that hip surgery would last longer and provide pain-free flexibility for more years.
How Much Does It Weigh?
Your surgeon will select the implant that is most appropriate for you and fits your anatomy, and lifestyle. Generally, a complete hip system (liner, shell, head and stem) weighs between 1 to 2 pounds, which depends on the kind of material that is used.