Scientific Article   |    
New Polys for Old: Contribution or Caveat?
A. Seth Greenwald, DPhil(Oxon); Thomas W. Bauer, MD, PhD; Michael D. Ries, MD
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A. Seth Greenwald, DPhil(Oxon)
Orthopaedic Research Laboratories, Lutheran Hospital, Cleveland Clinic Health System, 1730 West 25th Street, Cleveland, OH 44113. E-mail address: seth@orl-inc.com

Thomas W. Bauer, MD, PhD
Department of Pathology, Cleveland Clinic Foundation, 9500 Euclid Avenue, L25, Cleveland, OH 44195

Michael D. Ries, MD
University of California San Francisco Medical Center, 500 Parnassus Avenue, MU 320-W, San Francisco, CA 94143

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.

J Bone Joint Surg Am, 2001 Oct 01;83(2 suppl 1):S27-31
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The enduring success of the low-friction arthroplasty first advanced by Sir John Charnley as a solution for severe hip arthritic problems may be appreciated from the fact that in 1999 more than 500,000 hip and knee arthroplasties were performed in the United States. The prevalence of aseptic loosening attributed to polyethylene debris-induced osteolysis has been in the single digits in most contemporary series, with some reports describing prostheses surviving for twenty to thirty years (Figs. 1-A and 1-B).
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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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