Greater trochanter osteotomy as a component of cementless total hip replacement: Five cases in four dogs

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OBJECTIVE: To describe the surgical technique and report the long-term outcome of greater trochanteric osteotomy (GTO) as a component of cementless total hip replacement (THR) in dogs with severe medialization of the greater trochanter or chronic craniodorsal hip luxation. STUDY DESIGN: Short case series. ANIMALS: Four dogs treated with five THRs. METHODS: Data collected from medical records included signalment, indication for THR, duration of clinical signs, body weight, pre- and post-operative radiographic assessment, surgical templating, osteotomy technique, THR implant selection, surgical time, complications, and long-term clinical and radiographic follow-up. Clinical outcomes were determined based on in-hospital history, orthopedic examination, and radiographic evaluation. RESULTS: All five surgical procedures resulted in satisfactory long-term clinical results at follow-up a median of 48.2 months (range, 34-56 months) after THR. There were no minor complications and one major complication. One dog experienced post-operative luxation unrelated to the GTO and was successfully treated with a cup revision. CONCLUSION AND CLINICAL RELEVANCE: GTO was effective in facilitating cementless THR in dogs with either severe medialization of the greater trochanter or chronic craniodorsal luxation.

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