Document Detail

The intrinsic and extrinsic ligaments of the wrist. A correlation of collagen typing and histologic appearance.
MedLine Citation:
PMID:  8770735     Owner:  NLM     Status:  MEDLINE    
20 fresh frozen human wrist specimens were dissected. Gross and histological examination and biochemical evaluation were performed on the intrinsic ligaments (scapho-lunate and luno-triquetral) and extrinsic ligaments (radio-scapho-capitate and radio-lunate). All ligaments were observed to have longitudinal collagen bundles. The intrinsic ligaments had large amounts of fibrocartilage near insertions and no elastin, while the extrinsic ligaments had little fibrocartilage and sparse amounts of elastin. The intrinsic ligaments were noted to have significantly more collagen Type 3 (41%) than the extrinsic ligaments (19%). These findings suggest that structural differences between the intrinsic and extrinsic ligaments of the wrist may in part account for the biomechanical observations that the intrinsic ligaments are stronger and elongate further prior to failure than the extrinsic ligaments.
R B Johnston; J G Seiler; E J Miller; D M Drvaric
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of hand surgery (Edinburgh, Scotland)     Volume:  20     ISSN:  0266-7681     ISO Abbreviation:  J Hand Surg Br     Publication Date:  1995 Dec 
Date Detail:
Created Date:  1996-10-01     Completed Date:  1996-10-01     Revised Date:  2009-06-08    
Medline Journal Info:
Nlm Unique ID:  8403839     Medline TA:  J Hand Surg Br     Country:  SCOTLAND    
Other Details:
Languages:  eng     Pagination:  750-4     Citation Subset:  IM    
Emory University, Atlanta, Georgia, USA.
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MeSH Terms
Collagen / analysis*
Ligaments, Articular / anatomy & histology*,  chemistry
Wrist / anatomy & histology*
Reg. No./Substance:

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