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  • Title: Hamstring release for fixed knee flexion contracture in hemophilia.
    Author: Rodríguez-Merchán EC, Magallón M, Galindo E, López-Cabarcos C.
    Journal: Clin Orthop Relat Res; 1997 Oct; (343):63-7. PubMed ID: 9345208.
    Abstract:
    Sixteen hamstring tenotomies and posterior capsulotomies were assessed retrospectively in 10 patients with hemophilia. The average age of the patients was 17 years (range, 16-24 years). The main indication for surgery was a fixed knee flexion contracture of 30 degrees to 45 degrees, associated with repeated hemarthroses, and failure of conservative treatment after 6 months. A posterior transverse capsulotomy and a Z shaped hamstring tenotomy were performed. The postoperative treatment consisted of repeated stretching exercises for a 6-month period. An average decrease of 25 degrees in the amount of fixed knee flexion contracture was obtained (range, 10 degrees-40 degrees). Followup for an average of 9.5 years showed 11 good, four fair, and one poor result regarding their joint scores. It is concluded that hamstring release is an effective surgical procedure for fixed knee flexion contracture in hemophilia. It seems to reduce the incidence of hemarthrosis relating to such a deformity.
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