Fig. 3From: Computer-assisted preoperative planning improves the learning curve of PFNA-II in the treatment of intertrochanteric femoral fracturesLearning curves of surgical treatments with PFNA-II in CAPP and the conventional groups. Group A: y = 66.341x-0.118, R2 = 0.701; Group B: y = 0.0027 × 2–0.5334x + 71.401, R2 = 0.733Back to article page