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	Simulation of the ligament forces affected by prosthetic alignment in a trans-tibial amputee case study
	Fang, Li Dan ; Jia, Xiao Hong ; Wang, Rencheng ; Suo, Shuangfu
	2010-10-12 ; 2010-10-12
关键词	Musculoskeletal model Ligament forces Prosthetic alignment Trans-tibial Joint relative translation ANTERIOR CRUCIATE LIGAMENT OPTIMAL-CONTROL MODEL MUSCULOSKELETAL MODEL LIMB ALIGNMENT KNEE GAIT INJURY MUSCLE Engineering, Biomedical
中文摘要	The aims of this study were to predict and explain the patterns of ligament forces in the stump of a left trans-tibial amputee during walking, and to study the effects of the prosthetic alignment. Musculoskeletal modeling and computer simulation were combined to calculate ligament forces. The prosthesis was aligned to be in optimal position for the subject and then changed by +/- 6 degrees in the sagittal plane. The results showed most ligaments bearing the maximum tension forces around both heel-strike and toe-off. The PT force was the biggest in all of the ligaments which were studied. The load patterns of ACL and PCL were opposite in the gait cycle, but the load patterns of MCL and LCL appeared similar. The above results showed that the ligament forces increased at the incorrect alignment, because the incorrect alignment could break the relative translation of the femur and tibia, and that would generate the extra ligament strains. As a result, the ligament forces increased, and the long-duration fatigue occurred more easily. This finding suggests that the proper prosthetic alignment is very important for the normal activities of the stump ligaments. (C) 2009 IPEM. Published by Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78743]
专题	清华大学
推荐引用方式 GB/T 7714	Fang, Li Dan,Jia, Xiao Hong,Wang, Rencheng,et al. Simulation of the ligament forces affected by prosthetic alignment in a trans-tibial amputee case study[J],2010, 2010.
APA	Fang, Li Dan,Jia, Xiao Hong,Wang, Rencheng,&Suo, Shuangfu.(2010).Simulation of the ligament forces affected by prosthetic alignment in a trans-tibial amputee case study..
MLA	Fang, Li Dan,et al."Simulation of the ligament forces affected by prosthetic alignment in a trans-tibial amputee case study".(2010).

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