Objective: To study the results of 35 patients with stable intertrochanteric fractures of the femur, treated surgically with fixation by dynamic hip screw(DHS) at a secondary care hospital of Kerala, India between June 2015 and August 2018. Methods: The patients were divided into two groups–one with DHS fixation alone and other with added derotation screw .All patients were reviewed till bony union.Neck–shaft angle of femur was recorded in all patients immediately after surgery and at the time of bony union.Loss of neck–shaft angle and its percentage was compared between two groups. Conclusions: We concluded that adding cancellous derotation screw parallel to and just above dynamisation hip screw reduces the chance of varus collapse at the time of union.