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
Authors: Rosenblatt AJ1, Bottema CD2, Hill PB2.
Journal: Vet J

Intervertebral disc disease is a common, painful and debilitating neurological condition of dogs, causing substantial morbidity and mortality. The Dachshund is particularly susceptible to this disorder. The goal of this article is not to duplicate previously published reviews on canine intervertebral disc degeneration and degenerative diseases.

Category: Spine
Authors: Engel S1, Randall EK, Cuddon PA, Webb BT, Aboellail TA.
Journal: Vet Radiol Ultrasound

An 8-month-old female Saint Bernard dog was presented with gait abnormalities consistent with a left-lateralizing cervical myelopathy. Imaging revealed a large, irregular soft tissue and mineral mass at the level of C1 and C2. The lesion was successfully excised, and histopathology was performed, revealing evidence of both multiple cartilaginous exostoses and calcinosis circumscripta. To the authors' knowledge, this is the first report comparing features using magnetic resonance imaging, computed tomography, and radiography.

Category: Imaging - Spine
Authors: Neary CP1, Bush WW, Tiches DM, Durham AC, Gavin PR.
Journal: J Am Anim Hosp Assoc

A 12 yr old castrated male mixed-breed dog presented with a 2 wk history of progressive tetraparesis. Neurologic deficits included a short-strided choppy gait in the thoracic limbs and a long-strided proprioceptive ataxia in the pelvic limbs. Withdrawal reflexes were decreased bilaterally in the thoracic limbs. Signs were consistent with a myelopathy of the caudal cervical/cranial thoracic spinal cord (i.e., the sixth cervical [C] vertebra to the second thoracic [T] vertebra).

Category: Oncology - Spine
Authors: Delamaide Gasper JA1, Rylander H, Stenglein JL, Waller KR 3rd.
Journal: J Am Vet Med Assoc

Objective-To evaluate the signalment, neurologic examination and imaging findings, and outcome in dogs treated medically or surgically for osseous-associated cervical spondylomyelopathy (OACSM). Design-Retrospective case series. Animals-27 client-owned dogs. Procedures-Medical records for dogs with OACSM (diagnosis made in 2000 through 2012) were reviewed. Collected data included signalment, neurologic examination findings (graded from 0 [normal] to 5 [tetraplegia]), imaging findings, treatment, and outcome.

Category: Spine
Authors: Golini L1, Kircher PR, Lewis FI, Steffen F.
Journal: Vet Surg

OBJECTIVE:

To describe clinical outcome and technical outcome assessed using computed tomography (CT) in dogs with degenerative lumbosacral stenosis (DLSS) treated by dorsal laminectomy, partial discectomy, and transarticular screw fixation.

STUDY DESIGN:

Retrospective observational case series.

ANIMALS:

Dogs with DLSS (n = 17).

METHODS:

Authors: Linon E1, Geissbühler U, Karli P, Forterre F.
Journal: VCOT

A two-year-old female Lucerne Hound was presented with a one-week history of signs of progressive neck pain, inappetence, apathy, and an elevated rectal temperature. Findings of magnetic resonance imaging (MRI) were consistent with a foreign body abscess in the epidural space at the level of the first and second cervical vertebrae. A left-sided dorso-lateral atlantoaxial approach was performed, revealing an epidural abscess containing a grass awn. The clinical signs resolved within three days of surgery and the dog made a full recovery.

Category: Spine
Authors: Hearon K1, Berg JM, Bonczynski JJ, Suarez C, Bergman P.
Journal: JAAHA

The purpose of this study was to identify large-breed dogs with intervertebral disc disease (IVDD) in the upper thoracic region (thoracic vertebrae 1-9 [T1-T9]). Medical records of all dogs that were diagnosed with IVDD on MRI between February 2008 and September 2011 were reviewed. Of 723 dogs diagnosed with IVDD based on MRI, 527 (72.9%) were small-breed dogs. There were 21 (10.7%) large-breed dogs with IVDD in the T1-T9 region, whereas no small-breed dogs were identified with lesions in that region. The most common upper thoracic lesion sites were T2-T3 (33.3%) and T4-T5 (25.9%).

Category: Spine
Authors: Hearon K1, Berg JM, Bonczynski JJ, Suarez C, Bergman P.
Journal: JAAHA

The purpose of this study was to identify large-breed dogs with intervertebral disc disease (IVDD) in the upper thoracic region (thoracic vertebrae 1-9 [T1-T9]). Medical records of all dogs that were diagnosed with IVDD on MRI between February 2008 and September 2011 were reviewed. Of 723 dogs diagnosed with IVDD based on MRI, 527 (72.9%) were small-breed dogs. There were 21 (10.7%) large-breed dogs with IVDD in the T1-T9 region, whereas no small-breed dogs were identified with lesions in that region. The most common upper thoracic lesion sites were T2-T3 (33.3%) and T4-T5 (25.9%).

Category: Spine
Authors: Rohdin C1, Nyman HT, Wohlsein P, Hultin Jäderlund K.
Journal: JSAP

Seven related young pugs were diagnosed with cervical spinal intradural arachnoid cysts by magnetic resonance imaging (n = 6) and myelography (n = 1). All dogs were presented with skin abrasions on their thoracic limbs and non-painful neurological deficits, indicating a C1-T2 myelopathy. In all six dogs examined by magnetic resonance imaging not only the spinal arachnoid cyst but also a concomitant, most likely secondary, syringohydromyelia was confirmed. Pedigree analysis suggested a genetic predisposition for spinal arachnoid cysts in this family of pugs.

Category: Spine