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Archives of Orthopaedic and Trauma Surgery
Published in: Archives of Orthopaedic and Trauma Surgery 1/2009

01-01-2009 | Basic Science

Initiatory biomechanical study on humeral head migration after coracoacromial ligament cut

Authors: Jian Chen, Cong-Feng Luo, Zong-Ping Luo

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 1/2009

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Abstract

Object

To design and evaluate the strength of muscles in preventing humeral head migration after acromioplasty by biomechanical research on cadaver models.

Methods

Six fresh shoulder cadavers were studied. The coracoacromial ligament cut model was prepared in five shoulders for the study. Different forces were applied to the head of humerus with designed strengthened force on rotator cuff muscles. The results were calculated with SPSS software.

Results

The anterior and superior pulling force caused obvious migration of humeral head in coracoacromial ligament cut model; after strengthening the rotator cuff muscles, especially the supraspinatus and subscapular muscle, the humeral head migration was reduced.

Conclusion

Modified acromioplasty with supraspinatus and subscapular muscle, strengthened in our experiment, helped to control the migration of humeral head.
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Metadata
Title
Initiatory biomechanical study on humeral head migration after coracoacromial ligament cut
Authors
Jian Chen
Cong-Feng Luo
Zong-Ping Luo
Publication date
01-01-2009
Publisher
Springer-Verlag
Published in
Archives of Orthopaedic and Trauma Surgery / Issue 1/2009
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI
https://doi.org/10.1007/s00402-008-0580-3

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