Fig. 3From: Comparison of two methods of locating proximal femoral nail anti-rotation in the treatment of femoral intertrochanteric fracturesFemale, 87 years old, left femoral intertrochanteric fracture caused by fall at home (AO A2.1). Surgical treatment was performed 5 days after admission. The femoral neck screw was implanted by routine locating techniques. a Preoperative X-ray examination (AP posture). b Preoperative X-ray examination (lateral position). c Intraoperative anteroposterior fluoroscopy shows that the guide needle was in the middle of the femoral neck. d Intraoperative lateral fluoroscopy shows that the guiding needle was in the anterior of the femoral neck. e Perspective anteroposterior position after placing the spiral blade. f Perspective on the posterior lateral position when inserting the spiral blade shows the blade in the anterior of the femoral neckBack to article page