Document Detail

Canine Intervertebral Disc Fenestration Using a Vacuum-Assisted Tissue Resection Device.
MedLine Citation:
PMID:  23110415     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Describe the use and feasibility of a novel vacuum-assisted tissue resection device (VRD) for canine intervertebral disc fenestration, and compare the effectiveness of manual fenestration to the VRD. STUDY DESIGN: Randomized prospective study. ANIMALS: Canine cadavers (n = 15). METHODS: A cadaveric lumbar spine study was performed to compare the use of manual fenestration to a novel VRD for intervertebral disc fenestration. Both fenestration groups were compared to a control group. Effectiveness of fenestration was assessed by calculating a ratio of remaining nuclear weight postfenestration to total nuclear volume. Fenestrated discs with lower ratios were indicative of greater removal of nucleus pulposus. RESULTS: There was a statistically significant reduction in mean ratio (±SD) of remaining nuclear weight to volume with both fenestration groups compared to controls (0.39 ± 0.07; P < .001). There was an improved ratio using the VRD (0.23 ± 0.09) compared to manual fenestration (0.30 ± 0.10); this was not statistically significant (P = .069). It was technically difficult to fenestrate the disc spaces at L5-L6 and L6-L7 because of location and anatomy, resulting in a statistically significant increase in the median ratio of nuclear weight-to-volume ratios in both manual and VRD fenestration groups when compared to the more cranial L4-L5 disc spaces, 0.32 ± 0.08, and 0.35 ± 0.08 versus 0.25 ± 0.13 at L4-L5 (P = .026 and P = .004, respectively). CONCLUSIONS: The VRD is a feasible instrument for canine intervertebral disc fenestration. It is at least as effective as manual fenestration, and provides additional safety features.
Stephanie A Thomovsky; Rebecca A Packer; Nicolaas E Lambrechts; George E Moore
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-30
Journal Detail:
Title:  Veterinary surgery : VS     Volume:  -     ISSN:  1532-950X     ISO Abbreviation:  Vet Surg     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8113214     Medline TA:  Vet Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© Copyright 2012 by The American College of Veterinary Surgeons.
Department of Veterinary Clinical Sciences, Purdue University School of Veterinary Medicine, West Lafayette, IN.
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