| Endoscopic anatomy of the cervical vertebral canal in the horse: A cadaver study. | |
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MedLine Citation:
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PMID: 21492209 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Reason for performing study: Localisation of spinal cord compression in horses with cervical vertebral stenotic myelopathy is inexact. Vertebral canal endoscopy has been used in man to localise spinal cord lesions and has the potential to become a useful diagnostic technique in horses. Objective: To establish a surgical approach via the atlanto-occipital space to the cervical vertebral canal in equine cadavers and describe the endoscopic anatomy of the cervical epidural and subarachnoid spaces. Methods: The cadavers of 25 mature horses were used to assess 3 surgical methods to approach the cervical vertebral canal, including 2 minimally invasive and one open technique. Once the approach had been made, a flexible videoendoscope was inserted into the epidural space (epiduroscopy) or the subarachnoid space (myeloscopy) and advanced caudally until the intervertebral space between C7 and T1 was reached. Results: The epidural and subarachnoid spaces could not be accessed reliably using the minimally invasive techniques. Furthermore, damage to the nervous tissues was a frequent complication with these procedures. The open approach allowed successful insertion of the videoendoscope into the epidural and subarachnoid spaces in all horses and no inadvertent damage was observed. Anatomical structures that could be seen in the epidural space included the dura mater, nerve roots, fat and the ventral internal vertebral venous plexus. In the subarachnoid space, the spinal cord, nerve roots, blood vessels, denticulate ligaments and external branch of the accessory nerve were seen. Conclusions: Using the open approach, epiduroscopy and myeloscopy over the entire length of the cervical vertebral canal are possible in the mature horse. Potential relevance: Cervical vertebral canal endoscopy may become a valuable tool to localise the site of spinal cord injury in horses with cervical vertebral stenotic myelopathy and could aid in the diagnosis of other diseases of the cervical spinal cord. |
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Authors:
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T Prange; F J Derksen; J A Stick; F L Garcia-Pereira |
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Publication Detail:
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Type: Journal Article Date: 2010-08-26 |
Journal Detail:
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Title: Equine veterinary journal Volume: 43 ISSN: 0425-1644 ISO Abbreviation: Equine Vet. J. Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0173320 Medline TA: Equine Vet J Country: England |
Other Details:
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Languages: eng Pagination: 317-23 Citation Subset: IM |
Copyright Information:
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© 2010 EVJ Ltd. |
Affiliation:
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Department of Large Animal Clinical Sciences and Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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