Comparative Study On The Clinical Effect Of Whether Hamstring Tendon Autograft Augmented By Fiberwire For Single-bundle PCL Reconstruction

Objective : To observe the difference of the clinical effect of using high-strength woven suture or not in the reconstruction of posterior cruciate ligament(PCL)with single tendon autograft under arthroscope.Methods:The clinical data of 40 patients with posterior curciate ligament rupture and ligament reconstruction admitted to Shengjing Hospital Affiliated to China Medical University from 2017 to 2018 were analyzed retrospectively.According to whether or not to add Arthrex AR-7200(Arthrex,Naples,FL,USA)braided suture in the autogenous hamstring graft,the patients were divided into test group(17 cases)and control group(23 cases).The posterior drawer test(PDT)was used as the knee joint stability test to evaluate the knee function,IKDC score,Lysholm score and Tegner score were used as the evaluation criteria.The evaluation results of the knee joint in the experimental group and the control group were compared before and one year after the operation,and the evaluation results of the knee joint in the two groups were compared one year after the operation and one year before the operation.Results : Functional aspects of knee joint:The Lysholm score of the experimental group was expressed by median(quartile)1 year before and after operation.Lysholm scores of the tail group were 64(40,81)and 84(73,87)preoperative and postoperative,respectively,the control group were 68(48,78)and 80(70,90)respectively,they was statistically difference before and after surgery(Z value was-2.535 and-3.576,P value was 0.011 and < 0.001,respectively).There was no statistically significant difference between groups(all P>0.05).The Tegner score of the experimental troup before and 1 year after operation was expressed as the median(quartile),which was 2.0(1.0,2,5)and 6.0(5.0,7.5)respectively,and that of the control troup was 2.0(1.0,3.0)and 6.0(4.0,7.0)respectively.There was statistically significant difference between the two groups before and after operation(Z value was-3.397,-4.122,all P < 0.001),but there was no statistically significant difference between the two groups(all P>0.05).One year operation,the IKDC scores of the two groups were significantly improved(Z value were-3.750 and-4.083,all P <0.001),but there was no significant difference between the two groups(P >0.05).There was no significant difference between the two groups in the posterior drawer test(P>0.05);one year after the operation,the stability of the two groups was significantly better than that of the control group(Z=0.156,P=0.039).Conclusion : Posterior cruciate ligament reconstruction with autologous hamstring muscle can achieve satisfactory clinical results,and placing high-strength braided sutures in the graft is more conducive the recovery of knee joint stability.