The Journal of Bone and Joint Surgery (American). 2008;90:1487-1491.
doi:10.2106/JBJS.F.00991
© 2008 The Journal of Bone and Joint Surgery, Inc.
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow CME: Take the activity for this article:
 Adult Hip Reconstruction Test 30: Fall 2008 (publication date November 14, ...
Right arrow Letters to the Editor: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when Letters to the Editor are posted
Right arrow Alert me if a correction is posted
Services
Right arrow E-mail this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrow Rights and Permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bitsch, R. G.
Right arrow Articles by Schmalzried, T. P.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Bitsch, R. G.
Right arrow Articles by Schmalzried, T. P.
Related Collections
Right arrow Adult Hip
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Facebook   Add to Technorati   Add to Twitter  
What's this?

Reduction of Osteolysis with Use of Marathon Cross-Linked Polyethylene

A Concise Follow-up, at a Minimum of Five Years, of a Previous Report*

Rudi G. Bitsch, MD1, Travis Loidolt, BA2, Christian Heisel, MD1, Scott Ball, MD2 and Thomas P. Schmalzried, MD2

1 Stiftung Orthopädische Universitätsklinik, Schlierbacher Landstrasse 200A, 69118 Heidelberg, Germany
2 Joint Replacement Institute at Orthopaedic Hospital, 2400 South Flower Street, Los Angeles, CA 90007. E-mail address for T.P. Schmalzried: schmalzried{at}earthlink.net

Investigation performed at the Joint Replacement Institute, Los Angeles, California

* Original Publication

Heisel C, Silva M, dela Rosa MA, Schmalzried TP. Short-term in vivo wear of cross-linked polyethylene. J Bone Joint Surg Am. 2004;86:748-51.

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 of less than $10,000 from the Piedmont Fund of the Los Angeles Orthopaedic Hospital Foundation and a research grant in excess of $10,000 from the Stiftung Orthopädische Universitätsklinik Heidelberg. In addition, one or more of the authors or a member of his or her immediate family received, in any one year, payments or other benefits in excess of $10,000 or a commitment or agreement to provide such benefits from a commercial entity (DePuy Orthopaedics). Also, a commercial entity (DePuy) paid or directed in any one year, or agreed to pay or direct, benefits of less than $10,000 to a research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which one or more of the authors, or a member of his or her immediate family, is affiliated or associated.

Abstract: We previously reported wear data at a minimum of two years following thirty-four total hip replacements with a Marathon cross-linked polyethylene liner and twenty-four replacements with a conventional (gamma-sterilized-in-air) Enduron polyethylene liner. In this current study, with sequential five-year radiographs, wear rates were determined with use of linear regression analysis. The Marathon polyethylene had average wear rates of 15.4 mm3/yr and 8.0 mm3/million cycles. The Enduron polyethylene had average wear rates of 55.5 mm3/yr and 29.9 mm3/million cycles. The adjusted volumetric wear rate of the Marathon polyethylene was 73% lower than that of the Enduron polyethylene (p = 0.001). Osteolysis developed in eight of the twenty-four hips with an Enduron liner but was not apparent in any hip with a Marathon liner.

Level of Evidence: Therapeutic Level III. See Instructions to Authors for a complete description of levels of evidence.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Facebook Facebook   Add to Technorati Technorati   Add to Twitter Twitter    What's this?