Spine

Authors: Naomi N Lee, Jacob S Kramer, Aaron M Stoker, Chantelle C Bozynski, Cristi R Cook, James T Stannard, Theodore J Choma, James L Cook

Neck and low back pain are common among the adult human population and impose large social and economic burdens on health care and quality of life. Spine-related disorders are also significant health concerns for canine companions with etiopathogeneses, clinical presentations, and diagnostic and therapeutic options that are very similar to their human counterparts.

Category: Spine
Authors: Christopher L Mariani, Joshua A Zlotnick, Ola Harrysson, Denis J Marcellin-Little, Kristen Malinak, Ashley Gavitt, Julien Guevar

Objective: To assess the accuracy of three-dimensionally (3-D) printed drill guides in constraining the trajectory of drill tracts for implants in canine thoracic vertebrae.

Study design: Experimental ex vivo study.

Sample population: Five canine thoracic vertebral column specimens.

Category: Spine
Authors: Julien Guevar, Jason Bleedorn, Thomas Cullum, Scott Hetzel, Josh Zlotnick, Christopher L Mariani

Objective: To evaluate the safety and accuracy of a unilateral three-dimensionally printed animal-specific drill guide (3DASDG) design for unilateral stabilization in the thoracolumbar vertebral column of dogs compared to a bilateral design.

Study design: Cadaveric study.

Sample population: Fifty-two corridors in one canine cadaver.

Category: Spine
Authors: Sabrina Gillespie, Steven De Decker

Objectives: The aim of this study was to describe the clinical features, diagnostic imaging findings, treatment and outcome in cats with thoracic vertebral canal stenosis (TVCS).

Category: Spine
Authors: Alessandro Conte, Marco Bernardini, Steven De Decker, Cristoforo Ricco, Sebastien Behr, Daniel Sanchez-Masian, Guinio B Cherubini, Luisa De Risio, Rodrigo Gutierrez-Quintana

Objective: The aim of this study was to describe clinical and imaging features of thoracic vertebral canal stenosis secondary to the hypertrophy of the vertebral lamina and articular processes in screw-tail brachycephalic dog breeds, to evaluate the prevalence of the malformation in a large group of screw-tail dog breeds and to determine if degree of stenosis is associated with presence of neurological signs.

Category: Spine
Authors: Julie Selz, Benjamin Voumard, Franck Forterre

Objective: To determine whether a customized unilateral intervertebral anchored fusion device combined with (vs without) an intervertebral spacer would increase the stability of the L1-L2 motion segment following complete intervertebral diskectomy in canine cadaveric specimens.

Sample: Vertebral columns from T13 through L3 harvested from 16 skeletally mature Beagles without thoracolumbar disease.

Category: Spine
Authors: Patricia Beer, Sebastian C Knell, Antonio Pozzi, Brian H Park

Objective: To evaluate spinal stabilization with tension band stabilization (TS) in cats compared to screw and polymethylmethacrylate fixation (SP).

Study design: Ex vivo study.

Sample population: Sixteen feline thoracolumbar spinal specimens.

Category: Spine
Authors: Yuya Nakamoto, PhD Takashi Uemura, Hiroki Hasegawa, Miwa Nakamoto, Tsuyoshi Ozawa

Objective To evaluate the ability of extensive hemilaminectomy and durotomy (EHLD) to control progressive myelomalacia (PMM) in dogs.

Study design Retrospective clinical study.

Category: Spine
Authors: C Toni, B Oxley, S Behr

Objective: To report outcome and complications following atlanto-axial stabilisation by polymethylmethacrylate applied to screws placed using 3D-printed patient-specific drill guides.

Category: Spine
Authors: Marie C Dantio, Amanda J Dennis, Robert L Bergman

A 5 yr old male neutered Labrador retriever was evaluated for an 8 wk history of a slowly progressive abnormal hind limb gait that did not respond to treatment with nonsteroidal anti-inflammatories.

Initial examination findings were mild pelvic limb ataxia and moderate right pelvic limb lameness. A computed tomography with a myelogram was performed and showed a suspected intramedullary spinal mass. MRI was conducted and supported the computed tomography with myelogram findings of a possible intradural spinal mass at L1.

Category: Spine