Treatment of unstable intertrochanteric fractures of the femur: a prospective trial comparing anatomical reduction and valgus osteotomy.

A series of 100 consecutive patients with unstable intertrochanteric fractures were treated by compression hip screw fixation; 55 patients had an anatomical reduction (Group 1) and 45 patients a Sarmiento osteotomy and valgus reduction (Group 2). Group 1 spent an average of 10 days less in hospital than Group 2 (21 days compared with 31 days) (P less than 0.02). They also had a greater chance of returning to their pre-injury accommodation and of achieving their pre-injury walking capability. Radiological failure of fracture fixation, with varus angulation of the femoral head by cutting out of the screw, was seen seven times in Group 1 but only once in Group 2. Anatomical reduction provides better clinical results than valgus osteotomy in the patient with an unstable intertrochanteric fracture stabilized by a compression hip screw. The capacity for failure of fracture fixation is greater, however, in the former. Valgus osteotomy provides a simple means of securing a stable reduction of the fracture which cannot be satisfactorily reduced by closed means.