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Non-union following bilateral simultaneos Ganz trochanteric osteotomy

Sean M. Dixon, Ravi P. Reddy, Dan Williams, E. Darren Fern, Mark R. Norton
  • Ravi P. Reddy
    Royal Cornwall Hospital, Truro, TR13LJ, United Kingdom
  • Dan Williams
    Derriford Hospital,
Plymouth,
PL6 8D, United Kingdom
  • E. Darren Fern
    Royal Cornwall Hospital, Truro, TR13LJ, United Kingdom
  • Mark R. Norton
    Royal Cornwall Hospital, Truro, TR13LJ, United Kingdom

Abstract

Between January 2003 and December 2004, 13 patients underwent bilateral resurfacing arthroplasty via a Ganz trochanteric osteotomy. This bilateral group was mobilised fully weight-bearing with crutches. During the same period 139 Ganz trochanteric osteoto-mies were performed for unilateral hip resurfacing. These patients were mobilised with crutches, weight-bearing up to 10 kg on the operated leg. Nine osteotomies (32%) in the bilateral group subsequently developed a symptomatic non-union requiring revision of fixation. This compares with 10 patients (7%) in the unilateral group. Applying the Fisher’s exact test, the difference reached significance (P=0.0004). In two patients a second revision was required to achieve union. In one patient, revision of trochanteric fixation precipitated a deep infection. Protected weight-bearing following a Ganz trochanteric osteotomy is important to the success of the procedure. Simultaneous bilateral hip arthroplasty through a Ganz approach should be avoided. If it is undertaken, we recommend that patients should be non weight-bearing for 6 weeks following surgery. Non-union following a Ganz trochanteric osteotomy for arthroplasty carries a significant morbidity.

Keywords

Ganz trochanteric flip osteotomy; Bilateral;Simultaneous; Non-union; Resurfacing

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Submitted: 2009-10-12 10:46:20
Published: 2010-01-04 11:07:52
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