Biomechanics during cutting movement in individuals after anterior cruciate ligament reconstruction
10.19723/j.issn.1671-167X.2024.05.018
- VernacularTitle:前交叉韧带重建术后侧切动作的生物力学特征
- Author:
Shuang REN
1
;
Huijuan SHI
;
Zixuan LIANG
;
Si ZHANG
;
Xiaoqing HU
;
Hongshi HUANG
;
Yingfang AO
Author Information
1. 北京大学第三医院运动医学科,北京大学运动医学研究所,运动医学关节伤病北京市重点实验室,运动创伤治疗技术与器械教育部工程研究中心,北京 100191
- Keywords:
Anterior cruciate ligament reconstruction;
Side-cutting;
Biomechanics;
Postoperative re-habilitation
- From:
Journal of Peking University(Health Sciences)
2024;56(5):868-873
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate knee biomechanics of patients about 12 months after anterior cruciate ligament(ACL)reconstruction during cutting and determine the abnormal biomechanical characteristics.Methods:Sixteen males about 12 months after ACL reconstruction were recruited for this study.Three-dimensional kinematic and kinetic data were collected during cutting movement.Knee joint angles and moments were calculated.Paired t-tests were used to compare the differences in knee biomechanics be-tween the surgical leg and nonsurgical leg.Results:The peak posterior ground reaction force(surgical leg:0.380±0.071;nonsurgical leg:0.427±0.069,P=0.003)and vertical ground reaction force(surgical leg:1.996±0.202,nonsurgical leg:2.110±0.182,P=0.001)were significantly smaller in the surgical leg than in the nonsurgical leg.When compared with the uninjured leg,the surgical leg demonstrated a smaller knee flexion angle(surgical leg:38.3°±7.4°;nonsurgical leg:42.8°±7.9°,P＜0.001)and larger external rotation angle(surgical leg:10.3°±2.4°;nonsurgical leg:7.7°±2.1°,P=0.008).The surgical leg also demonstrated a smaller peak knee extension moment(surgical leg:0.092±0.031;nonsurgical leg:0.133±0.024,P＜0.001)and peak knee external rotation moment(surgical leg:0.005±0.004;nonsurgical leg:0.008±0.004,P=0.015)when com-pared with the nonsurgical leg.Conclusion:The individuals with ACL reconstruction mainly showed asymmetrical movements in the sagittal and horizontal planes.The surgical leg demonstrated a smaller peak knee flexion angle,knee extension moment,and knee external rotation moment,with greater knee external rotation angle.
