Fig. 1From: Measurement of operative femoral anteversion during cementless total hip arthroplasty and influencing factors for using neck-adjustable femoral stemPhotograph showing intraoperative measurement of the femoral anteversion using a goniometer. The goniometer consisted of 3 parts: one end of the handle was placed along the long axis of the cutting surface; the other end was a calibrated scale providing information for the orientation; and a laser device was attached to the pointer, which irradiated a ray of light to position the lower leg axisBack to article page