• Arch Orthop Trauma Surg · Aug 2015

    Total knee arthroplasty in patients with skeletal dysplasia.

    • Daniel Guenther, Daniel Kendoff, Mohamed Omar, Liang Richard Cui, Stefan Schmidl, Oliver Jakobs, Thorsten Gehrke, and Carl Haasper.
    • Orthopaedic Department, HELIOS Endo-Klinik Hamburg, Holstenstr. 2, 22767, Hamburg, Germany, guenther.daniel@mh-hannover.de.
    • Arch Orthop Trauma Surg. 2015 Aug 1;135(8):1163-7.

    IntroductionDwarfism is a challenge in arthroplasty. The anatomical features provide a lot of pitfalls. The aim of this study was to follow-up growth-restricted patients after endoprosthetic treatment.Materials And Methods138 knee arthroplasties in patients with a height ≤150 cm between January 1, 2000 and May 5, 2013 at our institution were enrolled in this study. 124 cases were available for 1-year follow-up. Out of these, 43 cases were available for 5-year follow-up so far. 14 patients were lost to follow-up.ResultsIKS score increased from 35 ± 16 on admission to 67 ± 22 (p < 0.001) at 1-year follow-up and 65 ± 23 (p < 0.001) at 5-year follow-up. Function Score increased from 40 ± 29 on admission to 64 ± 21 (p < 0.001) at 1-year follow-up and 63 ± 23 (p < 0.001) at 5-year follow-up. Revision surgery was required in one case (0.8 %) after 1-year follow-up, and in an additional three cases (7 %) after 5-year follow-up.ConclusionsKnee arthroplasty can be performed in patients suffering from dwarfism with good clinical benefits. However, survival rates are worse compared to the general population.

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