| Evaluation of the biomechanical efficacy of limited intercarpal fusions for the treatment of scapho-lunate dissociation. | |
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MedLine Citation:
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PMID: 2299151 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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An experimental model that uses a static positioning frame, pressure-sensitive film, and a microcomputer-based videodigitizing system was used to measure the contact areas and pressures in a group of wrists in their "normal" state, after ligament sectioning, which resulted in stage III perilunate instability and then following different types of simulated carpal fusions. Compared with a normal wrist, there is an overall decrease in load in the lunate fossa and a significant increase in load in the scaphoid fossa in the wrist with stage III perilunate instability. Scaphoid-trapezium-trapezoid and scaphoid-capitate fusions transmitted almost all load through the scaphoid fossa. Scaphoid-lunate, scaphoid-lunate-capitate, and capitate-lunate fusions all distributed load more proportionately through both scaphoid and lunate fossae. The positioning of the carpal bones within a limited carpal fusion was also found to affect the load distribution in the wrist. The scaphoid-lunate, scaphoid-lunate-capitate, or capitate-lunate fusions, with attention to the relative carpal alignment within the limited fusion seem to offer more promise for treatment of perilunate instability biomechanically than the scaphoid-trapezium-trapezoid or scaphoid-capitate fusions. |
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Authors:
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S F Viegas; R M Patterson; P D Peterson; D J Pogue; D K Jenkins; T D Sweo; J A Hokanson |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Journal of hand surgery Volume: 15 ISSN: 0363-5023 ISO Abbreviation: J Hand Surg Am Publication Date: 1990 Jan |
Date Detail:
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Created Date: 1990-03-05 Completed Date: 1990-03-05 Revised Date: 2009-06-08 |
Medline Journal Info:
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Nlm Unique ID: 7609631 Medline TA: J Hand Surg Am Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 120-8 Citation Subset: IM |
Affiliation:
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Division of Orthopaedic Surgery, University of Texas Medical Branch, Galveston 77551. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Arthrodesis* Biomechanics Humans Joint Instability / physiopathology, surgery* Lunate Bone / physiopathology, surgery* Middle Aged Wrist Joint / physiopathology, surgery* |
| Grant Support | |
ID/Acronym/Agency:
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5 R29 AR 38640-02/AR/NIAMS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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