Document Detail


An analytical approach to determine the in situ forces in the glenohumeral ligaments.
MedLine Citation:
PMID:  10396697     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to use an analytical approach to determine the forces in the glenohumeral ligaments during joint motion. Predictions from the analytical approach were validated by comparing them to experimental data. Using a geometric model, the lengths of the four glenohumeral ligaments were determined during anterior-posterior loading simulations and forward flexion-extension. The corresponding force in each structure was subsequently calculated based on length data via load-elongation curves obtained experimentally. During the anterior loading simulation at 0 deg of abduction, the superior glenohumeral ligament carried up to 71 N at the maximally translated position. At 90 deg of abduction, the anterior band of the inferior glenohumeral ligament had the highest force of 45 N during anterior loading. These results correlated well with those found in previous experimental studies. We believe that this validated analytical approach can be used to predict the forces in the glenohumeral ligaments during more complex joint motion as well as assist surgeons during shoulder repair procedures.
Authors:
R E Debski; E K Wong; S L Woo; F H Fu; J J Warner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomechanical engineering     Volume:  121     ISSN:  0148-0731     ISO Abbreviation:  J Biomech Eng     Publication Date:  1999 Jun 
Date Detail:
Created Date:  1999-09-28     Completed Date:  1999-09-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7909584     Medline TA:  J Biomech Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  311-5     Citation Subset:  IM; S    
Affiliation:
Department of Orthopaedic Surgery, University of Pittsburgh, PA 15213, USA.
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MeSH Terms
Descriptor/Qualifier:
Aged
Biomechanics
Cadaver
Computer Simulation
Humans
Humerus / anatomy & histology,  physiology
Ligaments, Articular / anatomy & histology,  physiology*
Models, Anatomic
Rotation
Scapula / anatomy & histology,  physiology
Shoulder Joint / anatomy & histology,  physiology*
Stress, Mechanical*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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