There are a large number of hip implant devices on the market. Each manufacturer has different models but each style falls into one of four basic material categories:metal on plastic polyethylene or UHMWPEmetal on metal MoMceramic on plastic UHMWPEceramic on ceramic CoCThese category names reference the materials used for the implant bearings. The stem and ball fit into and articulate against the cup or acetabulum. Each component can be made of one of several materials.
In the next 5 to 10 years, orthopaedic surgeons can expect to see a jump in the number of patients who require implant revision surgery, according to Wayne G. Paprosky, MD, FACS, associate professor of orthopaedics at Rush University Medical Center. Although the number of individuals who receive total joint arthroplasty is skyrocketing, the increase in revisions isn’t tied just to population growth. Dr. Paprosky and other attendees of the 2007 AAOS/NIH Osteolysis and Implant Wear Research Symposium delved into the clinical reasons for joint revision surgery and explored issues such as the diagnosis and treatment of osteolysis, the challenges surgeons face during revision surgeries, and the continuing need for research into these complex subjects.
Hip replacement surgery hip arthroplasty has been touted by many experts as one of the most significant medical device innovations of the last 40 years. It has helped millions of people overcome painful arthritis, recover from hip fractures and improve their quality of life. However, hip implants do not come without risk or complications. A growing number of implant recipients have experienced implant failure and other severe complications associated with their hip replacement.