Decision making in the management of malunion and nonunion of intertrochanteric fractures of the hip

Abstract

Aim: Intertrochanteric fractures account for almost 50% of hip fractures.Nonunion and malunion of these fractures are relatively uncommon. This study reviews the outcome of 31 cases of intertrochanteric fracture failures. An algorithm for the management of these injuries is also proposed. Methods: 19 patients with intertrochanteric malunion and 12 patients with non-union were included in this study. Treatment of these injuries was initiated according to the algorithm proposed in this study. Treatment outcomes were evaluated by assessing union, pre and postoperative shortening and HSA (head-shaft angle). Functional outcomes were assessed by the Parker mobility scale and presence or absence of pain. Results: All the patients with intertrochanteric malunion with follow-up had united. The postoperative shortening in all patients were ⩽2.5 cms. Patients having intertrochanteric nonunion with follow-up, who underwent internal fixation had united with an acceptable Parker mobility scale score, except in 1 patient who sustained an ipsilateral distal femur fracture. The average HSA correction obtained was 21° (range 3–60°). Conclusion: The algorithm proposed in this study helps streamline the treatment according to each case scenario.It helps in planning and managing patients with intertrochanteric fracture failures.