Feasibility for Measuring Transverse Area Ratios and Asymmetry of Lumbosacral Region Paraspinal Muscles in Working Dogs Using Computed Tomography

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dc.contributor.authorCain, Bethanyen
dc.contributor.authorJones, Jeryl C.en
dc.contributor.authorHolaskova, Idaen
dc.contributor.authorFreeman, Larry E.en
dc.contributor.authorPierce, Bess J.en
dc.date.accessioned2019-08-08T17:05:30Zen
dc.date.available2019-08-08T17:05:30Zen
dc.date.issued2016en
dc.description.abstractObjectives: Describe computed tomographic (CT) anatomy of canine lumbosacral (LS) paraspinal muscles, a method for measuring paraspinal muscle transverse area ratios and asymmetry using CT, and application of this method in a small sample of working dogs with versus without LS pain. Methods: Published anatomy references and atlases were reviewed and discrepancies were resolved by examination of anatomic specimens and multiplanar reformatted images to describe transverse CT anatomy of LS region paraspinal muscles. Sixteen Belgian malinois military working dogs were retrospectively recruited and assigned to LS pain positive versus negative groups based on medical record entries. A single observer unaware of dog group measured CT transverse areas of paraspinal muscles and adjacent vertebral bodies, in triplicate, for L5-S1 vertebral locations. A statistician compared muscle transverse area ratios and asymmetry at each vertebral location between groups. Results: The relative coefficient of variation for triplicate CT area measurements averaged 2.15% (N = 16). Multifidus lumborum (L6-7), psoas/iliopsoas (L5-6, L6-7), and sacrocaudalis dorsalis lateralis (L6-7, L7-S1) transverse area ratios were significantly smaller in dogs with LS pain (n = 11) versus without LS pain (n = 5) (p <= 0.05). Muscle asymmetry values were not significantly greater in dogs with versus without LS pain. Clinical relevance: Computed tomographic morphometry of LS region paraspinal muscles is a feasible objective method for use in future evidence-based research studies in working dogs. Potential future research applications include determining whether decreased paraspinal muscle area ratios and/or increased paraspinal muscle asymmetry could be used as markers for preclinical LS pain in stoic dogs or risk factors for other injuries in high performance canine athletes, or determining whether core muscle strengthening exercise prescriptions for dogs with LS pain have an effect on paraspinal muscle area ratios and asymmetry.en
dc.description.notesFunding support for this project was provided by the West Virginia Agricultural and Forestry Experiment Station, Morgantown, WV, USA (Scientific Article No. 3251); Hatch Formula Fund, National Institute of Food and Agriculture, U.S. Department of Agriculture (award number WVA00645); and WVU Davis-Michael Endowment for Pre-Veterinary Sciences.en
dc.description.sponsorshipWest Virginia Agricultural and Forestry Experiment Station, Morgantown, WV, USA [3251]; Hatch Formula Fund, National Institute of Food and Agriculture, U.S. Department of Agriculture [WVA00645]; WVU Davis-Michael Endowment for Pre-Veterinary Sciencesen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3389/fvets.2016.00034en
dc.identifier.issn2297-1769en
dc.identifier.other34en
dc.identifier.pmid27243022en
dc.identifier.urihttp://hdl.handle.net/10919/92892en
dc.identifier.volume3en
dc.language.isoenen
dc.publisherFrontiersen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectCTen
dc.subjectcore muscleen
dc.subjectcanineen
dc.subjectlower backen
dc.subjectcauda equinaen
dc.titleFeasibility for Measuring Transverse Area Ratios and Asymmetry of Lumbosacral Region Paraspinal Muscles in Working Dogs Using Computed Tomographyen
dc.title.serialFrontiers in Veterinary Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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