Effect Of Surgical Time On Knee Joint Function After Anterior Cruciate Ligament Reconstruction

Objective:To explore the effect of surgical time on knee joint function in patients undergoing anterior cruciate ligament reconstruction.Methods:Datum of 77 cases that operated the reconstruction of autologous tendon anterior cruciate ligament in our hospital from January 2016 to December 2017 was collected to carry out retrospective analysis.Patients who did not meet the criteria were excluded.According to the period from injury to surgery,the remaining 49 patients were divided into the early group A(?3 weeks)(26 cases)and the late group B(>3 weeks)(23 cases).The Lachman test,the neutral anterior drawer test and the axial shift test before and after surgery in both groups were recorded,respectively.In addition,IKDC score,Lysholm score,Tenger score and joint mobility before and after surgery in both groups were analyzed statistically using SPSS18.0.Chi-square test was used to exam the Lachman,ADT and axial shift tests results,while IKDC,Lysholm,Tenger score and joint activity were verified by rank sum test or independent sample t test.P<0.05 indicated that there was statistic difference.Results:The early group IKDC score(82.65±6.67)was higher than the advanced group(81.61±4.00),P=0.563,but there is no statistical difference;the early group Lysholm score(83.89±5.79)and the late group(84.65±3.21)The ratio was P=0.782.There was no significant difference between the two groups.The average value of the Tenger grading in the early group(7.61±0.89)was higher than that in the delayed group(7.44±0.95),but P=0.583,and there was no statistical difference.The postoperative joint mobility was higher in the late group(121.039°±12.91°)than in the early group(134.09°±11.12°),P=0.004,which with statistical difference.In the two groups the patients without combined injury,the KT-1000 measurement[(1.40±0.48)mm]in group A was lower than that in group B[(2.10±0.32)mm],P=0.016,the difference was statistically significant.In terms of combined injuries,there were 8 patients in group A and 16 patients in group B,P=0.004,which was statistically different.Conclusions:Early reconstruction and delayed reconstruction for knee anterior cruciate ligament injury can restore knee stability splendidily.There was no significant difference in knee function scores.Although early surgery can reduce the risk occurred by associated injury,advanced reconstructive surgery can make joint rang of motion higher.Even if delayed composite meniscus and ligament have higher inj uring risk,meniscus repair can be performed intraoperatively to improve the function of knees remarkably and shorten the length of stay in the hospital.