Radiological findings and clinical results of 102 thrust-plate femoral hip prostheses: A follow-up of 2 to 8 years

M.L. Buergi, Karl Stoffel, H.A.C. Jacob, H.H. Bereiter

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    27 Citations (Scopus)

    Abstract

    We report the radiological and clinical outcome of 102 consecutive femoral hip arthroplasty we prospectively followed up in 84 patients using the third generation of the thrust-plate prosthesis with a mean period of follow-up of 58 (range, 26-100) months. Four implants were revised: 2 because of an infection and 2 because of aseptic loosening. The thrust-plate prosthesis, which allows preservation of part of the femoral neck, was used in younger patients, 80% were younger than 60 years. In 95 implants, contact was maintained between thrust plate and underlying bone, and in only 3 instances, without any clinical manifestation, did the bone retract from the thrust plate to the extent that a gap appeared. The extent of radiologically evident bone contact with the flat surface of the thrust plate, as a consequence of the bone remodeling behavior, is described and retrospectively classified. The average Harris hip score increased from 51 points preoperatively to 96 points postoperatively at the last follow-up. Survivorship analysis according to Kaplan-Meier showed a survival rate of 98% after 6 years, with no further losses up to the end of the 8-year follow-up period.
    Original languageEnglish
    Pages (from-to)108-117
    JournalThe Journal of Arthroplasty
    Volume20
    Issue number1
    DOIs
    Publication statusPublished - 2005

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