Fig. 1From: Intraoperative complications in total hip arthroplasty using a new cementless femoral implant (SP-CL®)Radiological measures of proximal femur. a Canal width 2 cm above the mid-lesser trochanter line. b Canal width 3 cm below the mid-lesser trochanter line. c Femoral bone width 10 cm below the mid-lesser trochanter line. d Canal width 10 cm below the mid-lesser trochanter line. These measures were used to calculate canal flare index (a/d), cortical index [(c − d)/c], and canal–calcar ratio (d/b)Back to article page