Articles   |    
Disengagement of a Locking Screw from a Modular Stem in Revision Total Knee Arthroplasty. A Report of Three Cases*
View Disclosures and Other Information
Investigation performed at The Hospital for Special Surgery, Affiliated with The New York Hospital—Cornell University Medical Center, New York City
J Bone Joint Surg Am, 1997 Feb 01;79(2):254-8
5 Recommendations (Recommend) | 3 Comments | Saved by 3 Users Save Case


Use of modular components in either primary or revision total knee arthroplasty allows the surgeon to achieve intraoperative customization, optimum kinematics, and improved fixation1-8,11,13,15. Modularity in total knee arthroplasty includes augmentation of the femoral component with distal or posterior metallic blocks, or both, and augmentation of the tibial component with metallic wedges or blocks. In addition, fixation of the intramedullary stems is possible, and this allows stress relief and load-sharing with the host bone1,6-8,11,12. Although such elaborate configurations are unnecessary for most primary total knee arthroplasties, many surgeons routinely use intraoperative customization in revision procedures and frequently this customization involves the stem1,2,4-8,12,14.
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


    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
    Georgia - Choice Care Occupational Medicine & Orthopaedics
    Pennsylvania - Penn State Milton S. Hershey Medical Center