Document Detail


Applying Simulated In Vivo Motions to Measure Human Knee and ACL Kinetics.
MedLine Citation:
PMID:  22227973     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Patients frequently experience anterior cruciate ligament (ACL) injuries but current ACL reconstruction strategies do not restore the native biomechanics of the knee, which can contribute to the early onset of osteoarthritis in the long term. To design more effective treatments, investigators must first understand normal in vivo knee function for multiple activities of daily living (ADLs). While the 3D kinematics of the human knee have been measured for various ADLs, the 3D kinetics cannot be directly measured in vivo. Alternatively, the 3D kinetics of the knee and its structures can be measured in an animal model by simulating and applying subject-specific in vivo joint motions to a joint using robotics. However, a suitable biomechanical surrogate should first be established. This study was designed to apply a simulated human in vivo motion to human knees to measure the kinetics of the human knee and ACL. In pursuit of establishing a viable biomechanical surrogate, a simulated in vivo ovine motion was also applied to human knees to compare the loads produced by the human and ovine motions. The motions from the two species produced similar kinetics in the human knee and ACL. The only significant difference was the intact knee compression force produced by the two input motions.
Authors:
Safa T Herfat; Daniel V Boguszewski; Jason T Shearn
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-7
Journal Detail:
Title:  Annals of biomedical engineering     Volume:  -     ISSN:  1521-6047     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0361512     Medline TA:  Ann Biomed Eng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Biomedical Engineering, Tissue Engineering and Biomechanics Laboratories, 2901 Campus Drive, 852 Engineering Research Center, Cincinnati, OH, 45221-0012, USA.
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