Document Detail

Computed tomography to identify preoperative guidelines for internal fixation of the distal sesamoid bone in horses: an in vitro study.
MedLine Citation:
PMID:  21077919     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the reliability of computed tomography (CT) to identify the direction of implant insertion for cortical screws along the longitudinal axis of intact (nonfractured) distal sesamoid bones.
STUDY DESIGN: In vitro study.
SAMPLE POPULATION: Cadaveric paired equine forelimbs (n=16).
METHODS: Insertion of a cortical screw in lag fashion along the longitudinal axis of intact (nonfractured) distal sesamoid bones was evaluated in 2 groups (3.5 and 4.5 mm) of 8 paired limbs. In each group, the direction of the distal sesamoid bone was determined by CT (Equine XTC 3000 pQCT scanner). Screw placement was verified by specimen dissection. Implant direction was considered satisfactory if the entire screw length was within the distal sesamoid bone and not damaging the articular or flexural surfaces.
RESULTS: In our sample and according to our criteria, the proportion of satisfactory direction of screws was 0.63 (5/8) for 4.5 mm implants, and 0.87 (7/8) for 3.5 mm implants.
CONCLUSIONS: CT is a useful imaging modality to identify anatomic landmarks for insertion of a 3.5 mm cortical screw in the distal sesamoid bone.
Roland Perrin; Thomas Launois; Laurent Brogniez; Francis G Desbrosse; Richard P Coomer; Peter D Clegg; Ayalu A Reda; Simon G Gehin; Jean-Michel E Vandeweerd
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Publication Detail:
Type:  Journal Article     Date:  2010-11-15
Journal Detail:
Title:  Veterinary surgery : VS     Volume:  39     ISSN:  1532-950X     ISO Abbreviation:  Vet Surg     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-07     Completed Date:  2011-03-08     Revised Date:  2011-04-25    
Medline Journal Info:
Nlm Unique ID:  8113214     Medline TA:  Vet Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1030-6     Citation Subset:  IM    
Copyright Information:
© Copyright 2010 by The American College of Veterinary Surgeons.
Clinique Equine Desbrosse, St. Lambert-des-Bois, France.
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MeSH Terms
Bone Screws / veterinary
Forelimb / injuries,  surgery
Fracture Fixation, Internal / instrumentation,  methods,  veterinary*
Fractures, Bone / surgery,  veterinary*
Horse Diseases / surgery*
Internal Fixators / veterinary
Practice Guidelines as Topic
Sesamoid Bones / injuries,  surgery*
Tomography, X-Ray Computed / veterinary*
Treatment Outcome

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

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