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学科主题临床医学
In situ forces and length patterns of the fibular collateral ligament under controlled loading: an in vitro biomechanical study using a robotic system
Liu, Ping; Wang, Jianquan; Xu, Yan; Ao, Yingfang
关键词Fibular Collateral Ligament In Situ Forces Length Patterns Knee Kinematics Biomechanical Study
刊名KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
2015-04-01
DOI10.1007/s00167-013-2824-1
23期:4页:1018-1025
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Orthopedics ; Sport Sciences ; Surgery
研究领域[WOS]Orthopedics ; Sport Sciences ; Surgery
关键词[WOS]ANTERIOR CRUCIATE LIGAMENT ; KNEE KINEMATICS ; RECONSTRUCTION ; GRAFT ; INSTABILITY ; FLEXION ; TENDON ; SENSOR
英文摘要

The aim of this study was to determine the in situ forces and length patterns of the fibular collateral ligament (FCL) and kinematics of the knee under various loading conditions.

Six fresh-frozen cadaveric knees were used (mean age 46 +/- A 14.4 years; range 20-58). In situ forces and length patterns of FCL and kinematics of the knee were determined under the following loading conditions using a robotic/universal force-moment sensor testing system: no rotation, varus (10 Nm), external rotation (5 Nm), and internal rotation (5 Nm) at 0A degrees, 15A degrees, 30A degrees, 60A(0), 90A degrees, and 120A degrees of flexion, respectively.

Under no rotation loading, the distances between the centres of the FCL attachments decreased as the knee flexed. Under varus loading, the force in FCL peaked at 15A degrees of flexion and decreased with further knee flexion, while distances remained nearly constant and the varus rotation increased with knee flexion. Using external rotation, the force in the FCL also peaked at 15A degrees flexion and decreased with further knee flexion, the distances decreased with flexion, and external rotation increased with knee flexion. Using internal rotation load, the force in the FCL was relatively small across all knee flexion angles, and the distances decreased with flexion; the amount of internal rotation was fairly constant.

FCL has a primary role in preventing varus and external rotation at 15A degrees of flexion. The FCL does not perform isometrically following knee flexion during neutral rotation, and tibia rotation has significant effects on the kinematics of the FCL. Varus and external rotation laxity increased following knee flexion. By providing more realistic data about the function and length patterns of the FCL and the kinematics of the intact knee, improved reconstruction and rehabilitation protocols can be developed.

语种英语
WOS记录号WOS:000351611700014
资助机构Peking University Third Hospital
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/55265
专题北京大学第三临床医学院_运动医学研究所
北京大学第三临床医学院_骨科
作者单位Peking Univ, Inst Sports Med, Hosp 3, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714
Liu, Ping,Wang, Jianquan,Xu, Yan,et al. In situ forces and length patterns of the fibular collateral ligament under controlled loading: an in vitro biomechanical study using a robotic system[J]. KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY,2015,23(4):1018-1025.
APA Liu, Ping,Wang, Jianquan,Xu, Yan,&Ao, Yingfang.(2015).In situ forces and length patterns of the fibular collateral ligament under controlled loading: an in vitro biomechanical study using a robotic system.KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY,23(4),1018-1025.
MLA Liu, Ping,et al."In situ forces and length patterns of the fibular collateral ligament under controlled loading: an in vitro biomechanical study using a robotic system".KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY 23.4(2015):1018-1025.
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