The Journal of Bone and Joint Surgery (American). 2008;90:81-88.
doi:10.2106/JBJS.H.00574
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Have Contemporary Hip Resurfacing Designs Reached Maturity? A Review

Kevin L. Ong, PhD1, Michael T. Manley, PhD2 and Steven M. Kurtz, PhD1

1 Exponent Incorporated, 3401 Market Street, Suite 300, Philadelphia, PA 19104. E-mail address for K.L. Ong: kong{at}exponent.com
2 Homer Stryker Center for Orthopaedic Education and Research, 325 Corporate Drive, Mahwah, NJ 07430

Disclosure: In support of their research for or preparation of this work, one or more of the authors received, in any one year, outside funding or grants in excess of $10,000 from Stryker Orthopaedics. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. No commercial entity paid or directed, or agreed to pay or direct, any benefits to any research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which the authors, or a member of their immediate families, are affiliated or associated.

Background: The increasing prevalence of hip replacements in young patients is expected to fuel the demand for hip resurfacing arthroplasty. Patient selection, surgical technique, and implant design can influence the clinical outcomes for these patients. In this review, we discuss whether contemporary hip resurfacing designs have reached maturity and suggest design considerations for future-generation implants. These design-related factors include the amount and extent of cement fixation, adoption of cementless femoral fixation, optimization of implant position, minimization of stress-shielding, improvement in modularity or sizing and geometry options, metallurgy, development of alternative bearing options, and examination of in vivo cup deformation. In addition, this review is based on an understanding of the causes of failure of revision hip resurfacing arthroplasty, which is essential to help guide research, implant design, and clinical decision-making.


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