Document Detail

Treatment of ligament laxity by electrothermal shrinkage or surgical plication: a morphologic and mechanical comparison.
MedLine Citation:
PMID:  17030129     Owner:  NLM     Status:  MEDLINE    
Capsular plication or thermal shrinkage can be used to enhance surgical joint stabilization. We compared mechanical or morphologic properties of the medial collateral ligament of the rabbit knee treated by either bipolar radiofrequency electrothermal shrinkage or surgical plication. After 12 weeks, the medial collateral ligaments were procured from treated and contralateral knees to undergo viscoelastic (creep) testing, quantitative transmission electron microscopy, and immunohistochemistry. Creep strain in thermal (1.85% +/- 0.32%) and plicated (1.92% +/- 0.36%) ligaments was almost twice that of the control group (1.04% +/- 0.15%), although there was no difference between treatment modalities. The morphologic parameters of all 3 groups were significantly different (P < .001). The thermal ligaments demonstrated predominantly small fibrils, whereas the plicated group displayed an intermediate distribution of heterogeneous fibrils, suggesting a different pattern of remodeling. Viscoelastic properties are similar after thermal shrinkage or plication, though inferior to those of intact ligaments.
Adam M Hill; Ioan T Jones; Ulrich Hansen; Amrita Suri; Ann Sandison; Jill Moss; Andrew L Wallace
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2006-10-09
Journal Detail:
Title:  Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.]     Volume:  16     ISSN:  1532-6500     ISO Abbreviation:  J Shoulder Elbow Surg     Publication Date:    2007 Jan-Feb
Date Detail:
Created Date:  2007-01-22     Completed Date:  2007-04-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206499     Medline TA:  J Shoulder Elbow Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  95-100     Citation Subset:  IM    
Department of Musculoskeletal Surgery, Imperial College London, London, England, UK.
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MeSH Terms
Collateral Ligaments / surgery*,  ultrastructure
Joint Instability / surgery*
Knee Joint*
Microscopy, Electron, Transmission
Orthopedic Procedures / methods

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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