Six degrees-of-freedom kinematics of ACL deficient knees during locomotion - Compensatory mechanism

Li Qun Zhang; Richard G. Shiavi; Thomas J. Limbird; Jay M. Minorik

doi:10.1016/S0966-6362(02)00052-8

Six degrees-of-freedom kinematics of ACL deficient knees during locomotion - Compensatory mechanism

Li Qun Zhang^*, Richard G. Shiavi, Thomas J. Limbird, Jay M. Minorik

^*Corresponding author for this work

Physical Medicine and Rehabilitation

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

The purpose of the study was to investigate six degrees-of-freedom (DOF) kinematic changes in anterior cruciate ligament ACL-deficient knees during locomotion and the possible compensatory mechanism involved. Compared with healthy subjects, ACL-deficient patients walked with increased tibial external rotation throughout most of the stride and increased tibial abduction at the heel contact, and the tibia was more anterior during swing phase (P<0.05). Considering tibial external rotation and abduction unload the ACL, the kinematic changes indicated compensatory mechanism developed by patients to avoid unstable knee positions due to the loss of the ACL or to avoid stretching a partially torn ACL.

Original language	English (US)
Pages (from-to)	34-42
Number of pages	9
Journal	Gait and Posture
Volume	17
Issue number	1
DOIs	https://doi.org/10.1016/S0966-6362(02)00052-8
State	Published - Feb 2003

Keywords

ACL
Compensatory mechanism
Knee kinematics
Muscle

ASJC Scopus subject areas

Biophysics
Rehabilitation
Orthopedics and Sports Medicine

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10.1016/S0966-6362(02)00052-8

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abstract = "The purpose of the study was to investigate six degrees-of-freedom (DOF) kinematic changes in anterior cruciate ligament ACL-deficient knees during locomotion and the possible compensatory mechanism involved. Compared with healthy subjects, ACL-deficient patients walked with increased tibial external rotation throughout most of the stride and increased tibial abduction at the heel contact, and the tibia was more anterior during swing phase (P<0.05). Considering tibial external rotation and abduction unload the ACL, the kinematic changes indicated compensatory mechanism developed by patients to avoid unstable knee positions due to the loss of the ACL or to avoid stretching a partially torn ACL.",

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AU - Limbird, Thomas J.

AU - Minorik, Jay M.

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AB - The purpose of the study was to investigate six degrees-of-freedom (DOF) kinematic changes in anterior cruciate ligament ACL-deficient knees during locomotion and the possible compensatory mechanism involved. Compared with healthy subjects, ACL-deficient patients walked with increased tibial external rotation throughout most of the stride and increased tibial abduction at the heel contact, and the tibia was more anterior during swing phase (P<0.05). Considering tibial external rotation and abduction unload the ACL, the kinematic changes indicated compensatory mechanism developed by patients to avoid unstable knee positions due to the loss of the ACL or to avoid stretching a partially torn ACL.

KW - ACL

KW - Compensatory mechanism

KW - Knee kinematics

KW - Muscle

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Six degrees-of-freedom kinematics of ACL deficient knees during locomotion - Compensatory mechanism

Abstract

Keywords

ASJC Scopus subject areas

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