Authors: Elizabeth M Schmitt, Peter Early, Robert Bergman, Elizabeth A Riedesel, Lingnan Yuan, Jonathan P Mochel, Karl H Kraus

Objective: Identify acceptable implant corridors in the normal canine thoracic vertebrae (T) from T1 to T9.

Study design: Retrospective study.

Sample population: Computed tomographic (CT) studies of normal canine thoracic spines (n = 39).

Category: Spine
Authors: Kaustubh R Dongaonkar, Koji Aoki, Danielle Zwueste, Miriam Bates

Objective: To determine the influence of continuous and intermittent bolus irrigation on vertebral canal temperature during thoracolumbar hemilaminectomy.

Study design: Ex vivo study.

Sample population: Ten canine cadavers.

Category: Spine
Authors: Rick Beishuizen, Tjarda E Reints Bok, Michelle Teunissen, Albert J van der Veen, Kaj S Emanuel, Marianna A Tryfonidou, Bjorn P Meij

Objective: To evaluate the change in ex vivo biomechanical properties of the canine cervical spine, due to an intervertebral cage, both as a stand-alone device and in combination with plates.

Study design: Experimental ex vivo study.

Animals: Cervical spinal segments (C5-C7) from eight canine cadavers.

Category: Spine
Authors: Stephen P Spence, Sarah K Israel

Objective: To compare the incidence of MRI lesions between dogs weighing < 15 kg (33 lb) and dogs weighing ≥ 15 kg.

Animals: 494 dogs with clinical signs of thoracolumbar disease.

Category: Spine
Authors: Johanna K Wolf, Peter J Early, Antonio Pozzi, Alessio Vigani

Case description: 4 dogs, 7.5 to 10 years of age, were presented for evaluation of signs of chronic cervical pain and forelimb lameness secondary to cervical foraminal intervertebral disk protrusion (IVDP). All dogs were refractory to ≥ 2 weeks of conservative management including strict rest and pain management with anti-inflammatory drugs, methocarbamol, and gabapentin.

Category: Spine
Authors: Claudia Zindl, Noel Fitzpatrick, Alan S Litsky, Matthew J Allen

Objective: The aim of this study was to determine the biomechanical behaviour of a novel distraction-fusion system, consisting of an intervertebral distraction screw, pedicle locking screws and connecting rods, in the canine caudal cervical spine.

Category: Spine
Authors: S Kerr, A H Crawford, S De Decker

Objectives: To identify the prevalence of recurrence of clinical signs after initial successful decompressive surgery for intervertebral disc extrusion in French bulldogs.

Category: Spine
Authors: Luca Bresciani, Raquel Trevail, Stephen Clarke, Rodrigo Gutierrez-Quintana, Sebastien Behr, Kali Lazzerini, Josep Brocal, Bill Oxley, Jonathan Pink, Roberto José-López

Objective: To describe the clinical presentation, magnetic resonance imaging (MRI) findings, and outcome of dogs treated surgically for lumbosacral intervertebral disk extrusion (IVDE).

Study design: Retrospective study.

Animals: Thirteen dogs.

Category: Spine
Authors: Christian W Woelfel, James B Robertson, Chris L Mariani, Karen R Muñana, Peter J Early, Natasha J Olby

Objective: To evaluate outcomes and prognostic factors after decompressive hemilaminectomy in paraplegic medium to large breed dogs with extensive epidural hemorrhage (DEEH) and thoracolumbar intervertebral disc extrusion (TL-IVDE).

Study design: Retrospective, cohort, descriptive study.

Animals: Fifty-nine client-owned dogs.

Category: Spine
Authors: Ana Cloquell, Rocio Orlandi, Fernando Vázquez, Isidro Mateo

The objective of this study is to suggest clinical and subclinical atlantoaxial (AA) instability as a cause for dorsal AA ligament hypertrophy responsible for clinical signs in dogs with dens abnormalities.

Category: Spine