title: The possible role of the tibial plateau angle for the severity of osteoarthritis in dogs with cranial cruciate ligament rupture.
abstract: The purpose of this study was to determine factors correlated with the severity of radiographic osteoarthritis (OA) scoring in dogs with cranial cruciate ligament rupture (CrCLR). Three radiographs of stifle joints (craniocaudal, mediolateral, and mediolateral radiograph with 90 degree flexion of the stifle and tarsal joints) were obtained from 36 dogs with CrCLR (Clinical group) and from 22 dogs without stifle joint disease (Control group). Information about these dogs was collected from the owners and from medical records. Radiographic OA scores in each dog in the clinical group were determined from radiographs using a numeric grading system previously reported. The tibial plateau angle (TPA) in each dog in both groups was measured on mediolateral radiographs with 90 degree flexion of the stifle and tarsal joints. The Mann-Whitney's U test was used for comparing variables between the clinical group and the control group, and Spearman's rank correlation test was used for evaluating correlations between radiographic OA scores and variables in the clinical group. No significant differences were detected between the clinical group and the control group for any of the variables. There were two positive correlations; one between the radiographic OA score and TPA (r=0.395, p=0.014); and the other between body weight and OA score (r=0.399, p=0.013) in the clinical group. Our results indicate that body weight and TPA could affect the severity of the radiographic OA score in dogs with CrCLR.
authors.affiliation: Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Japan.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Fujita
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Hara
authors.forename: Hiroki
authors.initials: H
authors.lastname: Ochi
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Nezu
authors.forename: Yasuji
authors.initials: Y
authors.lastname: Harada
authors.forename: Takuya
authors.initials: T
authors.lastname: Yogo
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Orima
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tagawa
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D005260:Female; D008022:Ligaments / Q000293:injuries*; D008297:Male; D010003:Osteoarthritis / Q000601:surgery / Q000662:veterinary*; D012421:Rupture / Q000601:surgery / Q000662:veterinary*; D013264:Stifle / Q000293:injuries / Q000601:surgery; D013977:Tibia / Q000601:surgery*