Objective:To investigate the effects of ligamen remnant preservation on knee joint function and proprioception recovery in patients with anterior cruciate ligament (ACL) injuries during ACL reconstruction under arthroscope.Methods:The clinical data of 266 patients with ACL injuries,who were treated in the 174th hospital of PLA from January 2010 to March 2016,were retrospectively analyzed.All the patients underwent ACL reconstruction under arthroscopy,among them,163 patients with remnant preservation were chosen as remnant preservation group;103 patients with completely clearing remnant preservation in the operation,as non remnant preservation group.All the patients were followed up for more than 12 months,and the knee function and proprioception recovery of the two groups were evaluated.Results:There were no significant differences in the knee ipsilateral Lysholm score,international knee documentation committee knee assessment scale (IKDC) score,passive activity detection threshold,passive angle regeneration test results between the two groups before operation,9 and 12 months after operation (P＞0.05).The Lysholm scores and IKDC scores of the two groups at each time point were significantly higher than those before operation,the passive activity detection threshold and passive angle regeneration test results were significantly lower than those before operation (P＜0.05).The Lysholm scores and IKDC scores in the remnant preservation group 3 and 6 months after operation were higher than those in the non remnant preservation group,the passive activity detection threshold and the passive angle regenerated test results were lower than the non remnant preservation group,the difference was statistically significant (P＜0.05).Conclusion:Remnant preservation in the ACL reconstruction under arthroscopy can accelerate the recovery of knee joint function and proprioception,and satisfactory clinical results are achieved,which is worth popularizing.

Objective To compare the efficacy of single-tunnel single-bundle and double-bundle reconstruction in patients with anterior cruciate ligament reconstruction.Methods A total of 64 patients with anterior cruciate ligament rupture in our hospital were randomly divided into single-bundle group with 32 cases and double-bundle group with 32 cases, given single-tunnel single-bundle anterior cruciate ligament reconstruction, and single-tunnel double-bundle anterior cruciate ligament reconstructions.The IKDC, Tegner, Lysholm and KT-2000 scores were compared in two groups preoperation and at 12 months after operation.Results Thee were no significant difference in sex, age, injured site and injured time in the two groups(P>0.05).The IKDC, Tegner and Lysholm scores after operation were higher than operation before, and the KT-2000 scores was lower than operation before in two groups, and the differences were statistically significant(P<0.05).But there were no significant differences in IKDC, Tegner, Lysholm and KT-2000 scores between two groups before and after treatment(P>0.05).Conclusion The subjective and objective function scores of two groups showed no significant difference.But single-tunnel double-bundle for anterior cruciate ligament reconstruction is characterized by simplicity, firmly fixation and effectively restoration of knee stability.

Objective To compare the efficacy of single-tunnel single-bundle and double-bundle reconstruction in patients with anterior cruciate ligament reconstruction.Methods A total of 64 patients with anterior cruciate ligament rupture in our hospital were randomly divided into single-bundle group with 32 cases and double-bundle group with 32 cases, given single-tunnel single-bundle anterior cruciate ligament reconstruction, and single-tunnel double-bundle anterior cruciate ligament reconstructions.The IKDC, Tegner, Lysholm and KT-2000 scores were compared in two groups preoperation and at 12 months after operation.Results Thee were no significant difference in sex, age, injured site and injured time in the two groups(P>0.05).The IKDC, Tegner and Lysholm scores after operation were higher than operation before, and the KT-2000 scores was lower than operation before in two groups, and the differences were statistically significant(P<0.05).But there were no significant differences in IKDC, Tegner, Lysholm and KT-2000 scores between two groups before and after treatment(P>0.05).Conclusion The subjective and objective function scores of two groups showed no significant difference.But single-tunnel double-bundle for anterior cruciate ligament reconstruction is characterized by simplicity, firmly fixation and effectively restoration of knee stability.