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The Journal of Bone and Joint Surgery (American) 85:105-110 (2003)
© 2003 The Journal of Bone and Joint Surgery, Inc.

Reduced Wear with Oxidized Zirconium Femoral Heads

Victoria Good, PHD, Michael Ries, MD, Robert L. Barrack, MD, Kirstin Widding, MS, Gordon Hunter, PHD and Dan Heuer, MS

Corresponding author:
Victoria Good, PhD
Smith and Nephew, Incorporated, 1450 Brooks Road, Memphis, TN
38116. E-mail address: victoria.good@smithnephew.com

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Wear-related complications have been a major cause of revisions and reoperations following total hip arthroplasty. In the past, several materials have shown promise for reducing polyethylene wear, but they have draw-backs. Elimination of polyethylene from prosthetic designs has not gained wide acceptance because it limits design flexibility and introduces other risks: fractures with ceramic-on-ceramic bearings and metal-ion release with metal-on-metal bearings1,2. In an attempt to address the problem on the femoral side, opposite the polyethylene, ceramic modular heads were introduced because their surfaces are more abrasion-resistant and produce less friction than do metal surfaces, thereby reducing abrasive and adhesive wear of the polyethylene3. The use of oxide ceramics for the articulating femoral head can reduce wear by 25% to 50%4-6. However, ceramics such as monolithic zirconia and alumina are susceptible to brittle fracture, with the need for immediate revision1. On the acetabular side, highly crosslinked ultra-high . . . [Full Text of this Article]


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