Clinical characteristics associated with cervical hydrated nucleus pulposus extrusion in dogs

• DOI: 10.1111/jvim.17284
• Publication Date: 2025-01-11T08:40:02Z
• Authors: Megan Lin; Christopher X. Hong; Mark Rishniw; Emma S. Davies; Jonathan H. Wood
• Keywords: tetraparesis; Veterinary medicine; SF600-1100; STANDARD ARTICLE; central cord syndrome; hydrated nucleus pulposus extrusion; magnetic resonance imaging; nonambulatory; cervical myelopathy

Clinical characteristics of cervical hydrated nucleus pulposus extrusion (HNPE) in dogs compared to other causes myelopathy are not well described. To evaluate for clinical and mechanical ventilation likelihood associated with HNPE myelopathy. Three hundred seventy-seven client-owned from 2010 2022. Cases included 46 HNPE, 192 IVDE (intervertebral disc extrusion), 30 FCEM (fibrocartilaginous embolic myelopathy), 66 CSM (cervical spondylomyelopathy), 43 neoplasia. Retrospective study record review bivariate analyses. Dogs signs an MRI diagnosis IVDE, FCEM, CSM, or neoplasia were included. When myelopathies, more likely be older lower weight (median age 10 vs 8 years, P < .001; median 9.1 20.2 kg, .001), nonambulatory (89% 54%, have central cord syndrome (35% 16%, = .002), nonlateralizing (65% 48%, .029). present pain scores (30% 15% nonpainful, require (4/46 2/192 IVDE; odds ratio [OR] 9.0, 95% confidence interval [CI] 1.6-51.0). Compared differences characteristics, presentation requiring ventilation. These important consider case management.