A retrospective study of canine hip dysplasia in 116 military working dogs. Part I: Angle measurements and orthopedic foundation for animals (OFA) grading.
The progression of hip dysplasia was investigated in 116 military working dogs. Serial pelvic radiographs were graded for degree of dysplasia and degenerative joint disease (DJD). Norberg angles, angles of inclination, and joint space widths were measured. There was a significant correlation between the Norberg angle and the degree of dysplasia (p less than 0.0001). Angles of inclination and joint space width measurements did not demonstrate a correlation to canine hip dysplasia. Dysplastic dogs had a significant estimated risk for development of DJD compared to normal dogs (p less than 0.0001; odds ratio of 70.2). Dogs with normal hip conformation at 24 months of age or older did not develop moderate nor severe DJD.
Banfield
C M
CM
Department of Defense Military Working Dog Veterinary Services, Lackland Air Force Base, San Antonio, Texas 78236-5631, USA.
Bartels
J E
JE
Hudson
J A
JA
Wright
J C
JC
Hathcock
J T
JT
Montgomery
R D
RD
D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis / Q000473:pathology; D004285:Dogs; D005260:Female; D006619:Hip Dysplasia, Canine / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D008297:Male; D009985:Orthopedics / Q000662:veterinary; D010003:Osteoarthritis / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary; D010384:Pelvic Bones / Q000000981:diagnostic imaging / Q000473:pathology; D011237:Predictive Value of Tests; D011379:Prognosis; D011859:Radiography; D012189:Retrospective Studies; D012720:Severity of Illness Index; D014731:Veterinary Service, Military