0
Scientific Article   |    
Wear Performance of Ultra-High Molecular Weight Polyethylene on Oxidized Zirconium Total Knee Femoral Components
Myron Spector, PhD; Michael D. Ries, MD; Robert B. Bourne, MD; Willard S. Sauer, MS; Marc Long, PhD; Gordon Hunter, PhD
View Disclosures and Other Information
Myron Spector, PhD
Department of Orthopaedic Surgery, Brigham and Women’s Hospital,
75 Francis Street, Boston, MA 02115. E-mail address:mspector@rics.bwh.harvard.edu

Michael D. Ries, MD
Department of Orthopaedic Surgery, University of California, San Francisco,
500 Parnassus Avenue, Suite MU320W, San Francisco, CA 94143

Robert B. Bourne, MD
London Health Sciences Centre, University Campus, 339 WindermereRoad, London, ON N6A5A5, Canada

Willard S. Sauer, MS
Marc Long, PhD
Gordon Hunter, PhD
Orthopaedic Division, Smith and Nephew, Incorporated, 1450 Brooks Road, Memphis, TN 38116

In support of their research or preparation of this manuscript, one ormore of the authors received grants or outside funding from Smith andNephew. In addition, one or more of the authors received payments orother benefits or a commitment or agreement to provide such benefitsfrom a commercial entity (Smith and Nephew). Also, a commercialentity (Smith and Nephew) paid or directed, or agreed to pay or direct,benefits to a research fund, foundation, educational institution, or othercharitable or nonprofit organization with which the authors are affiliatedor associated.

J Bone Joint Surg Am, 2001 Nov 01;83(2 suppl 2):S80-86
5 Recommendations (Recommend) | 3 Comments | Saved by 3 Users Save Case

Extract

Wear debris can lead to osteolysis and aseptic loosening after total knee arthroplasty1,2. Efforts to reduce wear of total knee replacements have focused primarily on improving implant design and the quality of ultra-high molecular weight polyethylene. Although these efforts have addressed issues related to fatigue wear of the ultra-high molecular weight polyethylene component, concerns remain about adhesive and abrasive wear caused by the hard counterface of the femoral component. Previous studies have shown that roughening of the condyles occurs clinically and that many observed scratches have a shape and orientation that can increase polyethylene wear (Figs. 1, 2, and 3)3-8. Not only does volumetric wear of polyethylene increase with increasing counterface roughness, it also has been found that increasingly sharp peaks associated with counterface scratches increase the tendency for the production of submicrometer-sized debris that may be related to osteolysis9. These findings suggest that a hard counterface that resists roughening and provides low friction with ultra-high molecular weight polyethylene should reduce abrasive and adhesive wear and thereby prolong the survival of total knee replacements.
Figures in this Article

    First Page Preview

    View Large
    />
    First page PDF preview
    Sign In to Your Personal ProfileSign In To Access Full Content
    Not a Subscriber?
    Get online access for 30 days for $35
    New to JBJS?
    Sign up for a full subscription to both the print and online editions
    Register for a FREE limited account to get full access to all CME activities, to comment on public articles, or to sign up for alerts.
    Register for a FREE limited account to get full access to all CME activities
    Have a subscription to the print edition?
    Current subscribers to The Journal of Bone & Joint Surgery in either the print or quarterly DVD formats receive free online access to JBJS.org.
    Forgot your password?
    Enter your username and email address. We'll send you a reminder to the email address on record.

     
    Forgot your username or need assistance? Please contact customer service at subs@jbjs.org. If your access is provided
    by your institution, please contact you librarian or administrator for username and password information. Institutional
    administrators, to reset your institution's master username or password, please contact subs@jbjs.org

    References

    Accreditation Statement
    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.
    CME Activities Associated with This Article
    Submit a Comment
    Please read the other comments before you post yours. Contributors must reveal any conflict of interest.
    Comments are moderated and will appear on the site at the discretion of JBJS editorial staff.

    * = Required Field
    (if multiple authors, separate names by comma)
    Example: John Doe





    Related Content
    The Journal of Bone & Joint Surgery
    JBJS Case Connector
    Topic Collections
    Related Audio and Videos
    PubMed Articles
    Clinical Trials
    Readers of This Also Read...
    JBJS Jobs
    04/16/2014
    Georgia - Choice Care Occupational Medicine & Orthopaedics
    01/22/2014
    Pennsylvania - Penn State Milton S. Hershey Medical Center