Chipping corrective osteotomy and autologous bone graft for malrotation with nonunion of a subtrochanteric femoral fracture: A case report

Background

With subtrochanteric femoral fractures, it is often difficult to achieve appropriate positioning after reduction, and these fractures have a high risk of nonunion and malrotation. We report a case in which chipping corrective (CCO)was performed for nonunion and malrotation after subtrochanteric femoral fracture repair.

Case presentation

A 61-year-old man sustained a left femoral subtrochanteric fracture. Bone union was not achieved 2 years after the initial surgery. Additional surgery with CCO was performed 2 years and 9 months after the initial surgery. One year after CCO, bone union had been achieved circumferentially, and the difference in anteversion of the femoral neck from the opposite side had decreased from 49.3° preoperatively to 2.4° postoperatively.

Conclusions

CCO is useful for nonunion of subtrochanteric femoral fractures with malrotation. To our knowledge, there are no previous reports of CCO for postoperative nonunion of subtrochanteric femoral fractures.