Nonunion is a relatively rare, yet challenging problem after fracture of the femoral neck. Risk factors include verticality of the\nfracture line and presence of comminution of the posteromedial calcar, as well as quality of reduction. Treatment options consist of\nvalgus intertrochanteric osteotomy versus arthroplasty. Treatment should be tailored to the individual patient, taking into account\npatient age and activity demands. This review outlines the principles and technical considerations for valgus osteotomy of the\nproximal femur in the setting of femoral neck nonunion.
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