Abstract: Objective:To compare clinical outcomes of arthroscopic therapy for tibial avulsion fracture with nonabsorbable suture and cannulated screw.Methods:30 cases for tibial avulsion fracture patients were treated with nonabsorbable suture fixation or cannulated screw fixation under arthroscopy.Among these patients，the experimental group was15 knees with nonabsorbable suture fixation under knee arthroscopy，and the control group was 15 knees with traditional hollow screw fixation under knee arthroscopy.Radiographs，anterior drawertest（ADT），Lachman test，Lysholm score，Visual analog Pain Score ，International Knee Documentation Committee（IKDC）subjective score，operation time，analgesic dosage of postoperation 1 week and hospitalization expense were employed to evaluate clinical outcomes in followup.Results:Two groups of patients had improved significantly in knee function and pain relief compared with the preoperative state（P<0.05）.Both Lysholm and IKDC subjective scores improved at the last followup（P<0.05）.Experimental group[（75.40±10.32）min，（19.33±10.33）mg，（7555.56±1643.02）yuan] were less than control group[（88.67±12.84）min，（29.00±10.39）mg，（20127.91±1277.23）yuan] on aspect of operation time，analgesic dosage of postoperation 1 week and hospitalization expense（P＜0.05）.〖WTHZ〗Conclusion:Nonabsorbable suture fixation and cannulated screw fixation areequivalent techniques in terms of the clinical efficacy of arthroscopic tibial avulsion fracture treatment.But，Nonabsorbable suture fixation are less than cannulated screw fixation on aspect of operation time，analgesic dosage of postoperation 1 week and hospitalization expense.

Key words: anterior cruciate ligament, arthroscopy, suture, avulsion fracture