Objective To investigate the clinical effects' differences of screw and suture fixation by arthroscopy in treatment of patients with ACL tibial avulsion fracture. Methods 80 patients with ACL tibial avulsion fracture were chosen and randomly divided into both groups including A group(40 patients) with suture fixation by arthroscopy and B group(40 patients) with screw fixation by arthroscopy; and the operation time, the Lysholm knee score, the IKDC knee function subjective scale score, the difference of unin...