TABLE 4.

Summary of clinical and magnetic resonance imaging findings for 22 giant breed dogs diagnosed with cervical spondylomyelopathy because of a combination of osseous‐associated and disc‐associated spinal cord compressions.

Age	≤5 years	>5 years
Number (n) of dogs	11	11
Sex	9/11 males (82%); 2/11 females (18%)	8/11 males (73%); 3/11 females (27%)
Acute vs chronic	Chronic (n = 11, 100%)	Chronic (n = 6, 55%); acute (n = 5, 46%)
Mean (median) duration of clinical signs	211 (61) days	477 (75) days
Neurologic grade a	Grade 3 (n = 5, 46%); grade 4 (n = 4, 36%); grade 2 (n = 1, 9%); grade 5 (n = 1, 9%)	Grade 3 (n = 3, 27%); grade 4 (n = 3, 27%); grade 5 (n = 3, 27%); grade 2 (n = 2, 18%)
Main site of spinal cord compression	C6‐C7 (n = 6, 55%); C5‐C6 (n = 4, 36%); C2‐C3 (n = 1, 9%)	C6‐C7 (n = 6, 55%); C5‐C6 (n = 3, 27%); C4‐C5 (n = 2, 18%)
Severity of main compression site	Grade 3 (n = 6, 55%); grade 2 (n = 3, 27%); grade 1 (n = 2, 18%)	Grade 3 (n = 7, 64%); grade 2 (n = 4, 36%)
Dogs with T2W hyperintensity in spinal cord parenchyma	2/11 (18%)	8/11 (73%)
Dogs with T1W hypointensity in spinal cord parenchyma	1/11 (9%)	2/11 (18%)

Note: Dogs were grouped according to median age.

^a Neurologic grading system: grade 1 (cervical hyperesthesia only), grade 2 (mild pelvic limb ataxia or paresis ± thoracic limb involvement), grade 3 (moderate pelvic limb ataxia or paresis ± thoracic limb involvement), grade 4 (marked pelvic limb ataxia or paresis with thoracic limb involvement), grade 5 (tetraparesis with inability to stand or walk without assistance).