Fig. 1From: Low femoral antetorsion as a risk factor for bony impingement after bipolar hemiarthroplasty3D simulation of hip ROM and detection of impingement site in BHA. Neck of femoral implant impinges on posterior edge of acetabulum in external rotation with 10° extension. a Coronal view. b Sagittal view. c Axial view. d 3D modelBack to article page