Selecting Arthroplasty Fixation Approach Based on Greater Trochanter Fracture Type in Unstable Intertrochanteric Fractures
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Purpose: To evaluate the success rate of fixation approaches for greater trochanter (GT) fracture types in those with unstable intertrochnateric fractures. Materials and Methods: Forty-four patients who underwent arthroplasty for unstable intertrochanteric fractures between January 2015 and November 2017 and followed-up more than six months were included in this study. The fractures of GT were classified into one of four types (i.e., A, B, C, and D) and fixed using either figure-8 wiring or cerclage wiring according to fracture type. Fractures were type A (n=7), type B (n=20), type C (n=6), and type D (n=11). Type A and B, which are fractures located above the inferior border of GT were fixed using figure-8 wiring and/or adding cerclage wiring. On the other hand, all type C and D fractures, which were located below the inferior border, were fixed using cerclage wiring. Fixation failure was defined as breakage of wire and progressive migration of GT fragment greater than 5 mm on follow-up radiographs. Results: The most common GT fracture types were B and D, both of which are longitudinal fractures. The success rates of fixation were 85.7% (6 out of 7 cases) for the treatment of type A, 90.0% (18 out of 20 cases) for the treatment of type B, and 100% for the treatment of types C (6 out of 6 cases) and D (11 out of 11 cases). Conclusion: We note high success rates following fixation methods were selected based on the GT fracture type.
Abstract
Purpose: To evaluate the success rate of fixation approaches for greater trochanter (GT) fracture types in those with unstable intertrochnateric fractures. Materials and Methods: Forty-four patients who underwent arthroplasty for unstable intertrochanteric fractures between January 2015 and November 2017 and followed-up more than six months were included in this study. The fractures of GT were classified into one of four types (i.e., A, B, C, and D) and fixed using either figure-8 wiring or cerclage wiring according to fracture type. Fractures were type A (n=7), type B (n=20), type C (n=6), and type D (n=11). Type A and B, which are fractures located above the inferior border of GT were fixed using figure-8 wiring and/or adding cerclage wiring. On the other hand, all type C and D fractures, which were located below the inferior border, were fixed using cerclage wiring. Fixation failure was defined as breakage of wire and progressive migration of GT fragment greater than 5 mm on follow-up radiographs. Results: The most common GT fracture types were B and D, both of which are longitudinal fractures. The success rates of fixation were 85.7% (6 out of 7 cases) for the treatment of type A, 90.0% (18 out of 20 cases) for the treatment of type B, and 100% for the treatment of types C (6 out of 6 cases) and D (11 out of 11 cases). Conclusion: We note high success rates following fixation methods were selected based on the GT fracture type.
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