• Int Orthop · Sep 2015

    Outcome of a modular tapered uncemented titanium femoral stem in revision hip arthroplasty.

    • Maik Hoberg, Christian Konrads, Jana Engelien, Dorothee Oschmann, Michael Holder, Matthias Walcher, and Maximilian Rudert.
    • Orthopaedic Clinic Koenig-Ludwig-Haus, Center for Musculoskeletal Research, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Wuerzburg, Germany, m-hoberg.klh@uni-wuerzburg.de.
    • Int Orthop. 2015 Sep 1; 39 (9): 1709-13.

    PurposeRevision hip arthroplasty using a modular tapered design gives the possibility for customising the prostheses to the individual anatomy intra-operatively. The success of this kind of surgery is still controversial due to the relative lack of medium- to long-term follow-up. Therefore we analysed the clinical and radiological outcome of the modular MRP-TITAN stem with diaphyseal fixation in revision hip surgery.MethodsIn this retrospective study we included 136 consecutive patients with MRP-TITAN stem implanted during revision hip arthroplasty. The average follow-up was 55 months. For clinical evaluation we used the Harris Hip Score and the Merle d'Aubigné and Postel score. The health-related quality of life was determined with the visual analogue pain scale.ResultsThe surgeries were performed 109 months after primary total hip arthroplasty on average. The main indications for the MRP-TITAN revision stem were aseptic loosening, infection, and periprosthetic fracture. In the clinical outcome, patients achieved 75.1 points in the Harris Hip Score and 14.4 points in the Merle d'Aubigné and Postel Score. Mean level of persisting pain was 0.7 (VAS). The overall survival of the MRP stem in revision hip arthroplasty revealed 85.6% survival at 9.75 years' follow-up with a repeat revision rate of 6.8%.ConclusionsPerforming revision hip arthroplasty using the MRP-TITAN stem revealed a good clinical outcome. There is a tendency for better results in comparison with the information given in literature for cementless modular revision stems including a lower rate in re-revisions.

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