Effects of glenoid component version on humeral head displacement and joint reaction forces: an experimental study

Nyffeler, Richard W; Sheikh, Ralph; Atkinson, Todd S; Jacob, Hilaire A C; Favre, Philippe; Gerber, Christian (2006). Effects of glenoid component version on humeral head displacement and joint reaction forces: an experimental study. Journal of shoulder and elbow surgery, 15(5), pp. 625-9. New York, N.Y.: Elsevier 10.1016/j.jse.2005.09.016

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The purpose of this study was to determine whether changes in glenoid version are associated with humeral head displacement and changes in the joint reaction forces, as these might contribute to instability or loosening in total shoulder replacement. A total shoulder prosthesis was implanted in neutral version in 6 cadaveric shoulders. Glenoid version was then changed in steps of 4 degrees toward more anteversion and retroversion. An increase in anteversion resulted in anterior translation of the humeral head and in eccentric loading of the anterior part of the glenoid. Retroversion was associated with posterior displacement and posterior loading of the glenoid. A change in rotation of the humeral component did not compensate for altered version of the glenoid component. These results suggest that both instability and glenoid component loosening may be related to the version of the glenoid component. Therefore, assessment of loosening and instability justifies precise assessment of glenoid component version.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Nyffeler, Richard Walter

ISSN:

1058-2746

ISBN:

16979061

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:51

Last Modified:

05 Dec 2022 14:15

Publisher DOI:

10.1016/j.jse.2005.09.016

PubMed ID:

16979061

Web of Science ID:

000240785400017

URI:

https://boris.unibe.ch/id/eprint/21502 (FactScience: 7263)

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