Background: Fixation of greater trochanteric fractures or osteotomy in total hip arthroplasty pose technical challenges. This study aimed to evaluate the results of trochanteric claw plate fixation.Methods: This study retrospectively evaluated 41 consecutive open reductions and internal fixations following primary or revised total hip arthroplasty, which required trochanteric claw plate fixation for greater trochanteric fracture or osteotomy between January 2008 and December 2020. The mean duration of clinical follow-up was 4.2 years (range, 1–13 years). The patients included 13 men and 28 women, with a mean age of 68 years (range, 32–87 years). The indications for intervention included trochanteric osteotomy, intraoperative fracture, and non-union including postoperative fracture in 6, 9, and 26 cases, respectively.Results: The mean Merle d'Aubigné clinical score improved from 9.4 points (range, 5−15 points) pre-operatively, to 14.3 points (range, 9−18 points) at the last follow-up. Bone union occurred in 35 cases (85%), while implant breakage occurred in 4 cases. At the last follow-up, the mean Merle d’Aubigné Clinical Score of bone union and non-union were 15.3 and 14.1 points, respectively (p = 0.48). The Kaplan-Meier survival rate, with the endpoint being revision surgery for pain, non-union, dislocation, or implant breakage, at 10 years was 80.0% (95% confidence interval: 62.6−97.4%).Conclusions: Greater trochanteric fixation using a trochanteric claw plate yielded successful results.
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