| Intramedullary rod fixation compared with blade-plate-and-screw fixation for tibiotalocalcaneal arthrodesis: a biomechanical investigation. | |
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MedLine Citation:
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PMID: 14668514 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Achieving stable fixation when performing tibiotalocalcaneal arthrodesis can be challenging, especially in osteopenic bone. The purpose of the current investigation was to compare the stiffness and fatigue endurance of blade-plate-and-screw fixation with intramedullary rod fixation in a cadaveric model. METHODS: In ten matched pairs of fresh-frozen cadaveric legs, a tibiotalocalcaneal arthrodesis was performed with use of a blade-plate and a 6.5-mm sagittal screw in one leg and with use of an intramedullary rod in the contralateral leg. After an initial load-deformation curve was obtained, each specimen was loaded to 270 N through 250,000 cycles at a rate of 3 Hz. RESULTS: Blade-plate-and-screw fixation resulted in significantly higher mean initial and final stiffness and decreased plastic deformation than did intramedullary rod fixation. In addition, there was an inverse correlation between bone-mineral density and the difference in plastic deformation noted between the specimens of each pair. CONCLUSIONS: Blade-plate fixation is biomechanically superior to intramedullary fixation for tibiotalocalcaneal arthrodesis. |
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Authors:
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Christopher P Chiodo; Jorge I Acevedo; V James Sammarco; Brent G Parks; Henry R Boucher; Mark S Myerson; Lew C Schon |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: The Journal of bone and joint surgery. American volume Volume: 85-A ISSN: 0021-9355 ISO Abbreviation: J Bone Joint Surg Am Publication Date: 2003 Dec |
Date Detail:
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Created Date: 2003-12-11 Completed Date: 2004-01-13 Revised Date: 2010-10-25 |
Medline Journal Info:
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Nlm Unique ID: 0014030 Medline TA: J Bone Joint Surg Am Country: United States |
Other Details:
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Languages: eng Pagination: 2425-8 Citation Subset: AIM; IM |
Affiliation:
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Department of Orthopaedic Surgery, Union Memorial Hospital, 3333 North Calvert Street, Baltimore, MD 21218, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Arthrodesis / instrumentation*, methods Biomechanics Bone Plates* Bone Screws* Cadaver Calcaneus / surgery Compressive Strength Equipment Failure Equipment Safety Female Fracture Fixation, Intramedullary / instrumentation*, methods Humans Internal Fixators* Male Probability Sensitivity and Specificity Stress, Mechanical Tibia / surgery |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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