Metal-on-metal resurfacing arthroplasty: no way under the sun!--in opposition.
The functional demands and the longevity of hip arthroplasty patients are increasing. High volumetric wear and osteolysis limit the durability of metal-ultra high molecular weight polyethylene resurfacing. Cemented femoral hemiresurfacing components (no acetabular component) do not develop osteolysis and rarely loosen. Consistent long-term fixation has been demonstrated with hemispherical cementless acetabular components. Metal-metal bearings have demonstrated low wear and rare osteolysis over 3 decades of use. These facts form foundation for total hip resurfacing with metal-metal bearings.
Joint Replacement Institute, Orthopedic Hospital, 2400 S. Flower Street, Los Angeles, CA 90007, USA.
Thomas P
TP
Schmalzried
D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D006801:Humans; D008670:Metals; D010014:Osteolysis / Q000517:prevention & control; D011474:Prosthesis Design; D011475:Prosthesis Failure
D008670:Metals