The Chinese knotting technique assist anatomical anterior cruciate ligament reconstruction for aggressive rehabilitation

Aggressive rehabilitation after anterior cruciate ligament (ACL) reconstruction may result in better clinical outcomes and fewer complications such as knee stiffness and weakness. We explored the effect of the Chinese knotting technique (CKT) for aggressive rehabilitation after ACL reconstruction.Ninety-one anatomical ACL reconstruction cases from 2016 to 2020 were retrospectively reviewed. All patients were operated by the same senior physician and his team. According to the reconstruction with or without CKT, the patients were divided into 2 groups. Both groups received aggressive rehabilitation.The follow-up time of 91 patients was more than 2 years. In total, 43 out of the 91 patients were in the CKT group, and 48 were in the routine group. The knee joint kinematics recorded by Opti_Knee revealed no significant difference among the CKT group, the routine group, and healthy adults at 3, 6, 12, and 24 months after the operation, respectively. The internal and external rotation angle and the anteroposterior displacement at 3 and 6 months after the operation in the CKT group were smaller than in the routine group and were similar to that of the healthy adults. There was no significant difference in flexion and extension angle, varus or valgus angle, proximal–distal displacement, or the internal or external displacement between the 2 groups. In addition, there was no significant difference in 6 degrees of freedom of the knee between the 2 groups at 12 and 24 months after the operation, respectively, which was similar to healthy adults. Compared to the routine group, the International Knee Documentation Committee scores were significantly higher in the CKT group at the 3, 6, and 12 months, respectively, but no difference was observed at 24 months (P = .749). The Lysholm score was significantly higher in the CKT group at the 3 and 6 months postoperatively, while there was no difference at 12 and 24 months, respectively.In short-term observation, the ACL reconstruction with CKT, which can sustain aggressive rehabilitation and prevent the loosening of ACL graft, can lead to better clinical outcomes and kinematics recovery of the knee compared to routine technique.     

最大化保留残端结合内减张技术单束重建后交叉韧带临床疗效观察

目的:观察最大化保留残端结合内减张技术单束重建后交叉韧带的临床效果。方法:自2008年12月至2011年12月,18例后交叉韧带断裂患者在我所进行关节镜下后交叉韧带保残内减张重建术,对比患者术前术后膝关节IKDC、Lyshlom、Tegner评分和KT-2000差值。结果:保残内减张术重建后交叉韧带后,膝关节IKDC、Lyshlom及Tegner评分分别由术前的48.2分、51.9分和3.0分显著增加到术后的88.5分、92.9分和5.1分。术后膝关节KT2000差值(1.9 mm)显著小于术前(8.8 mm)。结论:最大化保留残端结合内减张技术重建后交叉韧带能有效改善膝关节的后向稳定性及功能。     

Remnant-preserving posterior cruciate ligament reconstruction with graft tension-relieving: a comparative study with conventional technique

Background Posterior cruciate ligament (PCL) tear is a severe injury to the knee joint and often requires surgical reconstruction.A number of PCL reconstruction techniques have been reported.However,th...     

Remnant-preserving posterior cruciate ligament reconstruction with graft tension-relieving: a comparison study with conventional technique

Background: Posterior cruciate ligament (PCL) tear is a severe injury to the knee joint and often requires surgical reconstruction. A number of PCL reconstruction techniques have been reported. However, the problem of residual laxity after surgery is not unusual with conventional techniques. This study aimed to introduce a modified PCL reconstruction with remnant preservation and graft tension relieving. Methods: Between December 2008 and June 2011, 36 cases of PCL reconstruction were performed in our institute, 20 with conventional technique (Group I) and 16 with modified technique (Group II). Preoperative and postoperative results of IKDC, Lysholm, Tegner and KT2000 side-to-side difference were obtained. Results: Both groups found significant improvement of IKDC, Lysholm, Tegner and KT2000 results after surgery. Group II showed better improvement in all subjective examinations and significantly more decrease of KT 2000 side-to-side difference. Conclusions: Modified PCL reconstruction with remnant preservation and graft tension relieving showed better results in restoration of posterior stability compared with conventional technique.