Paper| Volume 28, ISSUE 4, P275-277, May 1997

The fate of the syndesmosis in type C ankle fractures: a cadaveric study

  • I.A. Harris
    Woden Valley Hospital, ACT, Sydney, Australia

    St George Orthopaedic Skills Laboratory, Sydney, Australia
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  • H.P. Jones
    Requests for reprints should be addressed to: Mr Hugh Jones, 32 Council Street, Cooks Hill, NSW 2300, Australia.
    Woden Valley Hospital, ACT, Sydney, Australia

    St George Orthopaedic Skills Laboratory, Sydney, Australia
    Search for articles by this author
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      Ankle fractures that involve a fracture of the fibula above the syndesmosis (AO type C) associated with a medial lesion are always said to indicate rupture of the inferior tibiofibular syndesmosis. This study shows that fresh cadaver ankles subjected to a combination of abduction and direct lateral force over the shaft of the fibula consistently produce displaced bimalleolar ankle fractures without disruption of the inferior tibiofibular syndesmosis. The results of this study suggest that the presence of an AO type C ankle fracture does not necessarily indicate diastasis of the inferior tibiofibular joint and, therefore, internal fixation of the syndesmosis of the fracture may not be indicated.
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