| Influence of Partial Lateral Corpectomy with and without Hemilaminectomy on Canine Thoracolumbar Stability: A Biomechanical Study. | |
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MedLine Citation:
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PMID: 22092156 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To analyze the biomechanical changes induced by partial lateral corpectomy (PLC) and a combination of PLC and hemilaminectomy in a T13-L3 spinal segment in nonchondrodystrophic dogs. STUDY DESIGN: In vitro biomechanical cadaveric study. SAMPLE POPULATION: T13-L3 spinal segments (n = 10) of nonchondrodystrophic dogs (weighing, 25-38 kg). METHODS: A computed tomography (CT) scan of each T13-L3 spinal segment was performed. A loading simulator for flexibility analysis was used to determine the range of motion (ROM) and neutral zone (NZ) during flexion/extension, lateral bending, and axial rotation. A servohydraulic testing machine was used to determine the changes in stiffness during compression, dorsoventral, and lateral shear. All spines were tested intact, after PLC in the left intervertebral space of L1-L2, and after a combination of PLC and hemilaminectomy. RESULTS: Statistically significant increases in ROM and NZ (P < .05) were detected during flexion/extension and lateral bending when PLC was performed. A significant increase in ROM (P < .001) was noted during axial rotation and flexion after PLC and hemilaminectomy. Stiffness decreased significantly during compression and dorsoventral shear after each procedure. Decreased stiffness during lateral shear was only significant after a combination of both procedures. CONCLUSION: PLC might lead to some spinal instability; these changes are enhanced when a hemilaminectomy is added. |
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Authors:
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Núria Vizcaíno Revés; Alexander Bürki; Stephen Ferguson; Urs Geissbühler; Christina Stahl; Frank Forterre |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-4 |
Journal Detail:
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Title: Veterinary surgery : VS Volume: - ISSN: 1532-950X ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8113214 Medline TA: Vet Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© Copyright 2011 by The American College of Veterinary Surgeons. |
Affiliation:
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Small Animal Clinic, Department of Surgery and Radiology, University of Berne, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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