Abstract:Nonunion of femoral intertrochanteric fractures secondary to surgical treatment is a rare but serious complication. Revision surgical treatment is the main clinical option, involving femoral head preservation and hip arthroplasty. The former includes valgus osteoto- my and replacement of internal fixation, and the latter includes total hip arthroplasty and hemiarthroplasty. Many factors must be consid- ered in the choice of treatment, especially the failure of the previous internal fixation with proximal femur loss in some extent, which in- creases the difficulty of the revision surgery. This paper summarized the treatment strategies, techniques and indications for postoperative nonunion of femoral intertrochanteric fractures at home and abroad in recent years, providing reference for the diagnosis and treatment of this dilemma in clinical setting.