| Biomechanical analysis of capitate shortening with capitate hamate fusion in the treatment of Kienböck's disease. | |
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MedLine Citation:
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PMID: 9620179 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The biomechanical effects of surgical treatment options for Kienböck's disease have been compared. However, no study has included a direct analysis of capitate shortening along with capitate-hamate fusion (CSCHF). To investigate the biomechanical effects of CSCHF, a cadaver model of the upper extremity was used to determine radiocarpal articular pressure changes resulting from this procedure using pressure-sensitive film. Ten specimens were tested by placing each in an apparatus that applied load across the radiocarpal joint through the wrist flexor and extensor tendons. Testing was performed in 3 wrist positions (ulnar deviation, radial deviation, and neutral) combined with 3 forearm positions (pronation, supination, and neutral) and neutral flexion/extension. Radioscaphoid, radiolunate, and mean contact pressures in the entire radiocarpal joint were determined for each of the 9 wrist positions, both intact and after surgery. The radioscaphoid mean pressure increased in 6 of 9 positions and was unchanged in 3 positions. The radiolunate mean pressure decreased in 9 of 9 positions. The radiocarpal mean pressure increased in 2 of 9 positions and was unchanged in 7 positions. These data suggests that CSCHF increases radioscaphoid mean pressure, decreases radiolunate mean pressure, and has little effect on radiocarpal mean pressure. |
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Authors:
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R W Viola; P K Kiser; A W Bach; D P Hanel; A F Tencer |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of hand surgery Volume: 23 ISSN: 0363-5023 ISO Abbreviation: J Hand Surg Am Publication Date: 1998 May |
Date Detail:
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Created Date: 1998-07-23 Completed Date: 1998-07-23 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: 395-401 Citation Subset: IM |
Affiliation:
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Department of Orthopaedic Surgery, Harborview Biomechanics Laboratory, The University of Washington, Seattle, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Arthrodesis* Biomechanics Cadaver Carpal Bones / surgery* Humans Osteochondritis / physiopathology, surgery* Pressure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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