JBJS | Y.-S. Park, Y.-W. Moon, and S.-J. Lim reply:

The Journal of Bone & Joint Surgery, Volume 89, Issue 5

Letters to the Editor | May 01, 2007

Y.-S. Park, Y.-W. Moon, and S.-J. Lim reply:

Youn-Soo Park, MD; Young-Wan Moon, MD; Seung-Jae Lim, MD

The Journal of Bone & Joint Surgery. 2007; 89:1132-1133

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Risk of ceramic fracture is the single most important reason why orthopaedic surgeons are reluctant to embrace contemporary alumina-on-alumina total hip arthroplasty. One design modification to address this problem is use of a polyethylene-alumina composite liner. Theoretically, the polyethylene backing may improve the toughness of the alumina bearing couples, leading to a reduction of the risk of chipping or actual fracture of the alumina liner during insertion or in vivo use. Although these benefits were demonstrated in one early clinical report6, our experience revealed a worrisome frequency of ceramic failure with the same implant design.

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aluminum oxide ; fracture

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These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.

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