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Prospective Matched-Pair Analysis of Hydroxyapatite-Coated and Uncoated Femoral Stems in Total Hip ArthroplastyA Concise Follow-up of a Previous Report*
Javad Parvizi, MD, FRCS1; Peter F. Sharkey, MD1; William J. Hozack, MD1; Fabio Orzoco, MD1; Gina A. Bissett1; Richard H. Rothman, MD, PhD1
1 Department of Orthopedic Surgery, Rothman Institute, 925 Chestnut Street, Philadelphia, PA 19107. E-mail address for R.H. Rothman: rhrothman@aol.com
View Disclosures and Other Information
The authors did not receive grants or outside funding in support of their research or preparation of this manuscript. They did not receive 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, educational institution, or other charitable or nonprofit organization with which the authors are affiliated or associated.
Original Publication
Rothman RH, Hozack WJ, Ranawat A, Moriarity L. Hydroxyapatite-coated femoral stems. A matched-pair analysis of coated and uncoated implants. J Bone and Joint Surg Am. 1996;78:319-24.
A commentary is available with the electronic versions of this article, on our web site (www.jbjs.org) and on our quarterly CD-ROM (call our subscription department, at 781-449-9780, to order the CD-ROM).
Investigation performed at the Department of Orthopedic Surgery, Rothman Institute, Philadelphia, Pennsylvania

The Journal of Bone and Joint Surgery, Incorporated
J Bone Joint Surg Am, 2004 Apr 01;86(4):783-786
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This prospective study was performed to examine the results of total hip arthroplasty with a tapered uncemented femoral component with and without hydroxyapatite coating in a matched-pair group of patients. Since our original publication in 1996, no femoral component was revised in either group. After a mean clinical and radiographic follow-up of 9.8 years, all femoral components were stable, with no evidence of progressive radiolucency or osteolysis. Ten acetabular components were revised because of aseptic loosening and wear. Our study demonstrated no clinical or radiographic advantage, during the first decade after implantation, to the use of hydroxyapatite on this design of femoral component in primary total hip arthroplasty.

Level of Evidence: Therapeutic study, Level II-1 (prospective cohort study). See Instructions to Authors for a complete description of levels of evidence.

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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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