Abstract: Objective：To investigate the Shortterm effectiveness and clinical significance of Arthroscopic anterior cruciate ligament anatomic single bundle  reconstruction with remnant preservation.Methods：The clinical data were retrospectively analyzed from 79 patients treated by arthroscopic anterior cruciate ligament anatomic single bundle reconstruction with remnant preservation between January 2012 and July 2016.they were divided into two groups according to handing stump.There were 38 patients with remnant preservation(RP) group and 41 patients with conventional group.Postoperative followup assessment included the Lachman test，pivot shift test and KT1000 measurement International Knee Documentation Committee(IKDC) grading ，Lysholm score，proprioception measurements.Results：All the patients were followed up for 12 months.At the time of 6 months after the operation,There were significant differences between the RP group and conventional group in Lachman test positive rate(10.5% vs.26.8%)，pivot shift test positive rate (13.2% vs.29.2%)and proprioception evaluation measured with angle repetitive test[(3.56±1.73)°vs(4.84±1.85)°]，There were no significant differences between groups in KT1000[(1.8±0.9)mm vs.(2.2±1.3)mm].At the time of 12 months after the operation,there were significant differences between the RP and conventional group in Lachman test positive rate(7.9% vs.21.9%)，pivot shift test positive rate (7.9% vs.24.3%)，KT1000[(1.2±0.8)mm vs.(1.7±1.0)mm]，IKDC grading(cases with A gradings：81.6% vs.68.3%)and Lysholm score(96.4±3.1 vs.92.1±4.3)(P＜0.05).There were no significant differences between groups in proprioception evaluation measured with angle repetitive test [(2.75±1.33)°vs.(3.28±1.51)°](P＞0.05).Conclusion：The shortterm effectiveness of arthroscopic anterior cruciate ligament anatomic single bundle reconstruction in the treatment of ACL injury was fine.Arthroscopic ACL reconstruction combined with remnant preserved was benefited for the stability and proprioception of the knee，and the shortterm outcome was better．

Key words: arthroscopic, 〓anterior cruciate ligament, 〓remnantpreserved