| Objective:To compare the clinical effects of LARS ligament and autogenous hamstring tendon plus high-strength suture in arthroscopic reconstruction of posterior cruciate ligament.Methods: Select patients with simple posterior cruciate ligament(PCL)injury who were admitted to Hospital from August 2017 to December 2019 and received arthroscopic posterior cruciate ligament reconstruction surgery by the same surgeon As the research object,52 cases were completely followed up.Among them,43 cases were male and 9 cases were female;21 cases were left leg and 31 cases were right leg;the average age of the patients was 32.50±8.68 years old.According to the difference of intraoperative grafts,they were divided into two groups: LARS ligament group(25cases)and autologous hamstring tendon plus high-strength suture group(27 cases).Except for the length of operation,there was no statistical difference between the two groups of patients in gender,age,injury side,concomitant injury,and BMI.All patients were exercised according to functional rehabilitation guidance after operation,followed up regularly after the operation,and objectively evaluated the stability of the knee joint by KT-1000 measure the slackness of the knee joint,using Lysholm score,Tegner score,and International Knee Joint Documentation Committee(IKDC)score for subjective scoring Evaluate the function of the knee joint.The data of the two groups of patients before the operation,3 months,6 months and 12 months after the follow-up were collected,analyzed by SPSS software,and the differences in the postoperative rehabilitation and ligament laxity of the two groups were compared.Results:All 52 patients were followed up effectively,and the preoperative and postoperative indexes of the autogenous tendon plus high-strength suture group and the LARS ligament group were compared.The functional scores of the autogenous tendon plus high-strength suture group before and 12 months after the operation were: Tegner score(1.8±0.7,5.8±0.6),Lysholm score(46.6±16.8,91.0±6.3),IKDC score(54.5±6.3),83.3±3.3),the three scores in this group were statistically different(P<0.05),indicating that the knee joint function was improved after surgery compared with that before surgery;the preoperative and 12 months postoperative functional scores of the LARS ligament group were respectively : Tegner score(1.7±0.8,5.7±0.7),Lysholm score(51.9±18.5,91.3±5.9),IKDC score(54.4±4.2,82.2±3.1),the three scores in this group have statistical differences(P< 0.05),which also shows that the function of the knee joint after surgery is better than that before surgery.The KT-1000 measured value(10.73±1.46,3.77±1.76)of patients in the autogenous tendon plus high-strength suture group before and 12 months after operation was statistically different(P<0.05),indicating that the knee stability was better than that before operation.The KT-1000 measured value(10.55±1.53,2.44±0.60)of the patients in the LARS ligament group before and 12 months after the operation was statistically different(P<0.05),which also showed that the knee joint stability was improved after the operation compared with that before the operation.Analyze the results of the functional scores at each time point after the operation of the two groups of patients.3 months after the operation: Tegner score(2.5±0.6),Lysholm score(65.7±11.0),IKDC score(55.8±2.6)in the autogenous tendon plus high-strength suture group,Tegner score(4.3±0.7),Lysholm score(73.7±6.5),IKDC score(65.3±4.6)in the LARS ligament group,the three functional scores of the two groups were statistically different(P<0.05),indicating that the knee in the LARS ligament group Joint function is better than the autogenous tendon plus high-strength suture group;6 months after the operation: autogenous tendon plus high-strength suture group Tegner score(3.5±0.5),Lysholm score(74.6±6.4),IKDC score(70.6±4.7),LARS group Tegner score(5.0±1.4),Lysholm score(86.7±4.6),IKDC score(79.7±2.9),the three functional scores of the two groups were statistically different(P<0.05),the knee joint function in the LARS ligament group Better than autogenous tendon plus high-strength suture group;12 months after operation:autogenous tendon plus high-strength suture group Tegner score(5.8±0.6),Lysholm score(91.0±6.3),IKDC score(83.3±3.3),LARS ligament group Tegner score(5.7±0.7),Lysholm score(91.3±5.9),IKDC score(82.2±3.1),there was no significant difference in the three knee function scores between the two groups(P>0.05),the function of the LARS ligament group was compared with the autogenous tendon There was no difference in the tendon plus high-strength suture group.The KT-1000 measured value results of the two groups of patients at various time points after operation were analyzed.The KT-1000 measured value of the autogenous tendon plus high-strength suture group and the LARS ligament group were(2.47±0.52;2.38±0.39)at 3 months after the operation,and at 6 months after the operation.Respectively(3.02±0.75;2.35±0.60)and(3.77±1.05;2.44±0.50)at 12 months after operation,respectively.The two groups were compared,and there was no statistical difference between the two groups at 3 months after operation.The results were different at 6 months and 12 months after operation.The stability of the LARS ligament group was better than that of the autogenous tendon and high-strength suture group.Conclusion: Both autogenous tendon plus high-strength suture and LARS ligament can significantly improve the knee joint function and stability after the reconstruction of the cruciate ligament.The postoperative effect is satisfactory,but the LARS ligament has better postoperative stability and a shorter recovery period. |
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