The effect of cyclic knee motion on the elongation of four-strand hamstring autograft in anterior cruciate ligament reconstruction: an in-situ pilot study
The effect of cyclic knee motion on the elongation of four-strand hamstring autograft in anterior cruciate ligament reconstruction: an in-situ pilot study
复制标题
膝关节循环运动对前十字韧带重建中四股自体腘绳肌伸长的影响：原位试点研究
DOI：
10.1186/s12891-019-2699-5
复制
发表时间：
2019-07-09
影响因子：
2.3
通讯作者：
Hu, Yue-lin
中科院分区：
文献类型：
--
作者：
Jiang, Dong;Ao, Ying-fang;Hu, Yue-lin
BackgroundPretension of the viscoelastic graft by cyclic knee motion has been confirmed to decrease the graft creep and improve the outcome of anterior cruciate ligament (ACL) reconstruction. The purpose of the present study was to investigate the effect of cyclic knee motion on the elongation of the four-strand hamstring tendon autograft in situ and to explore the stable level cycle, in which the tendon length achieved a stable level.MethodsThe study was performed with 53 consecutive patients undergoing transtibial ACL reconstruction with four strand hamstring tendon from Aug 2013 to Apr 2015. 43 males and 10 females were included with mean age of 2910years. The pretension of the tendons was operated by cyclical knee motion ranging from 0 to 110 degrees after the femoral fixation with Endo-button. The tendon length after 10, 20, 30 and 40cycles was measured respectively and compared by repeated measure ANOVA. Then multivariate logistic regression was used to investigate the effect of the patients' parameters (age, gender, height, body weight, tendon length, etc.) on the elongation of the graft and the stable level cycle.ResultsThe mean lengthening of the graft at 10, 20, 30 and 40 times was 3.0 +/- 1.4mm, 4.3 +/- 1.5mm, 4.8 +/- 1.7mm and 4.8 +/- 1.8mm respectively. No significant correlation was found between the elongation and the patients' parameters. There was significant difference of the tendon length from 0 to 30cycles (F=264.8, df=1.95, p
