Document Detail

Biomechanical effect of isolated capitate shortening in Kienbock's disease: an anatomical study.
MedLine Citation:
PMID:  22918882     Owner:  NLM     Status:  Publisher    
Multiple operations have been proposed to slow the progression of osteonecrosis and secondary carpal damage in Kienböck's disease. To assess the biomechanical changes after capitate shorting, we inserted pressure-testing devices into the carpal and radiocarpal joints in an anatomical study. Pressure sensors were placed into eight thawed non-fixated human cadaver arms to measure the forces transmitted in physiological loading. Longitudinal 9.8 N and 19.6 N forces were applied before and after capitate shortening. After capitate shortening, significant load reduction on the lunate was evident in all specimens. An average decrease of 49% was seen under a 9.8 N load and 56% under a 19.6 N load. The load was transferred to the radial and ulnar intercarpal joints. More relief of pressure on the lunate after isolated capitate shortening is achieved with a shallow angle between the scaphoid and capitate in the posteroanterior radiograph.
K-D Werber; R Schmelz; C A Peimer; S Wagenpfeil; H-G Machens; J A Lohmeyer
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-23
Journal Detail:
Title:  The Journal of hand surgery, European volume     Volume:  -     ISSN:  2043-6289     ISO Abbreviation:  J Hand Surg Eur Vol     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101315820     Medline TA:  J Hand Surg Eur Vol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
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