Polyethylene Wear With Ceramic and Metal Femoral Heads at 5 Years : A Randomized Controlled Trial With Radiostereometric Analysis
Background: A common bearing combination in total hip arthroplasty today is a metal femoral head articulating with polyethylene in the cup. Ceramic heads are thought to be more resistant to third-body damage, and have better wettability and decreased surface roughness, which taken together have been suggested to result in less polyethylene wear. The purpose of this study is to compare the initial
