Spine

Authors: Togni A1, Kranenburg HJ, Morgan JP, Steffen F.
Journal: J Small Anim Pract

OBJECTIVES:

To evaluate clinical signs, describe lesions and differences in the magnetic resonance imaging appearance of spinal new bone formations classified as disseminated idiopathic spinal hyperostosis and/or spondylosis deformans on radiographs and compare degeneration status of the intervertebral discs using the Pfirrmann scale.

METHODS:

Retrospective analysis of 18 dogs presented with spinal disorders using information from radiographic and magnetic resonance imaging examinations.

RESULTS:

Category: Spine
Authors: Vallefuoco R1, Manassero M, Leperlier D, Scotti S, Viateau V, Moissonnier P.
Journal: Vet Comp Orthop Traumatol

Objective: To report our clinical experience in the surgical treatment of feline thoraco-lumbar vertebral fracture-luxations using optimal safe implantation corridors as previously described in vitro. Study design: Retrospective clinical study. Materials and Methods: Medical records and radiographs of cats with vertebral fracture-luxations stabilized by screws and polymethylmethacrylate (PMMA) using optimal safe implantation corridors between 2009 and 2011 were reviewed.

Authors: Hamilton T, Glass E, Drobatz K, Agnello KA1.
Journal: Vet Comp Orthop Traumatol

Objective: To identify the severity of neurological deficits, presence of signs of cervical pain, and the site of intervertebral disc space extrusion in 21 dogs diagnosed via magnetic resonance imaging (MRI) with a hydrated nucleus pulposus extrusion (HNPE) and compare those findings to dogs with other compressive cervical myelopathies.

Category: Spine
Authors: Aikawa T1, Sadahiro S, Nishimura M, Miyazaki Y, Shibata M.
Journal: Vet Comp Orthop Traumatol

A four-year-old, female spayed Domestic Longhaired cat was referred for evaluation with a two month history of initial inability to jump progressing to ambulatory tetraparesis. Magnetic resonance imaging studies demonstrated a cystic lesion arising from the composite occipito-atlanto-axial joint cavity and extending to the region of the occipital bone and the axis. The lesion surrounded the spinal canal, causing moderate dorsal spinal cord compression at the atlanto-occipital joint.

Category: Spine
Authors: Salger F1, Ziegler L, Böttcher IC, Oechtering G, Böttcher P, Flegel T.
Journal: Vet Surg

OBJECTIVE:

To determine neurologic outcome and factors influencing outcome after thoracolumbar partial lateral corpectomy (PLC) in dogs with intervertebral disc disease (IVDD) causing ventral spinal cord compression.

STUDY DESIGN:

Retrospective case series.

ANIMALS:

Dogs with IVDD (n = 72; 87 PLC).

METHODS:

Category: Spine
Authors: Salger F1, Ziegler L, Böttcher IC, Oechtering G, Böttcher P, Flegel T.
Journal: Vet Surg

OBJECTIVE:

To determine neurologic outcome and factors influencing outcome after thoracolumbar partial lateral corpectomy (PLC) in dogs with intervertebral disc disease (IVDD) causing ventral spinal cord compression.

STUDY DESIGN:

Retrospective case series.

ANIMALS:

Dogs with IVDD (n = 72; 87 PLC).

METHODS:

Category: Spine
Authors: Jeffery ND1, Barker A2, Harcourt-Brown T3.
Journal: Vet J

An association between degenerative changes in the lumbosacral region of the vertebral column and clinical signs of pain and pelvic limb dysfunction has long been recognized in dogs and has become known as degenerative lumbosacral stenosis syndrome. Over the past two decades, methods of imaging this condition have advanced greatly, but definitive criteria for a reliable diagnosis using physical examination, imaging and electrodiagnostics remain elusive.

Category: Spine
Authors: Martin-Vaquero P1, da Costa RC2, Lima CG2.
Journal: Vet J

Morphometric investigations comparing normal and affected animals increase our understanding of spinal diseases in dogs. The aim of this study was to generate morphometric data for osseous-associated cervical spondylomyelopathy (CSM) in Great Danes (GDs). Magnetic resonance imaging (MRI) morphometric features of the cervical vertebral column of GDs with and without clinical signs of CSM were characterized and compared. Thirty client-owned GDs were prospectively enrolled, including 15 clinically normal and 15 CSM-affected GDs.

Category: Imaging - Spine
Authors: Bae Y1, Park S, Jeon S, Lee G, Choi J.
Journal: Am J Vet Res

Objective-To determine the effect of region of interest (ROI) setting and slice thickness on trabecular bone mineral density (BMD) measured withquantitative CT in dogs. Animals-14 healthy Beagles. Procedures-CT of the lumbar vertebrae and a quantitative CT phantom was performed. The BMD of trabecular bone was measured from L1 to L7 in 2 ways in all dogs. First, sequential 9.6-mm-thick CT images were acquired and then CT images were reconstructed into transverse CT images with slice thicknesses of 2.4, 4.8, and 9.6 mm. The obtained images were analyzed by circular ROI and trace ROI methods.

Category: Imaging - Spine
Authors: Faller K1, Penderis J1, Stalin C1, Guevar J1, Yeamans C1, Gutierrez-Quintana R2.
Journal: Vet J

In people, abnormalities in vertebral column conformation, such as kyphoscoliosis, induce degenerative changes in adjacent intervertebral disc (IVD) structure and composition. It was hypothesised that canine IVDs adjacent to a vertebral malformation undergo early degeneration. In a blinded retrospective study, thoracic IVD degeneration was evaluated in 14 dogs on magnetic resonance images using Pfirrmann's grade. IVDs adjacent to a vertebral malformation had higher grades of degeneration than non-adjacent IVDs (P < 0.0001).

Category: Spine