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  • Title: Mechanical distraction for treatment of severe knee flexion contractures.
    Author: Herzenberg JE, Davis JR, Paley D, Bhave A.
    Journal: Clin Orthop Relat Res; 1994 Apr; (301):80-8. PubMed ID: 8156701.
    Abstract:
    Ten patients (14 knees) with severe knee flexion contractures were treated by gradual mechanical distraction using either the Ilizarov or Orthofix external fixator. Range of motion improved from an average flexion contracture of 60 degrees before surgery to 16 degrees at the follow-up evaluation. Range of motion results were graded good or excellent in five knees, fair in two knees, and poor in three knees. Average total arc of motion remained essentially unchanged when comparing the preoperative (59 degrees) with the follow-up results (63 degrees). However, the functional position of this arc improved significantly. Problems encountered included a "rebound" phenomena after frame removal, with loss of the temporarily increased total arc of motion. The role of hamstring tenotomy and radical posterior knee release remains unclear.
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