title: Comparison of tibial plateau angles in small and large breed dogs.
abstract: Cranial cruciate ligament (CCL) disease can affect dogs of all sizes. The literature describing tibial plateau angle (TPA) in small breed dogs is limited. A retrospective study was conducted in unselected dogs presented for stifle or tibial examination to compare TPA in small breed dogs (n = 146 dogs, 185 stifles) versus large breed dogs (n = 200 dogs, 265 stifles). Small breed dogs had a mean TPA 3.1° ± 0.6° higher than large breed dogs. There were higher TPAs in spayed females and castrated males for all dogs compared with intact males (3.6° ± 1.0° and 2.7° ± 1.0°, respectively). Dogs with unilateral and bilateral CCL disease had higher TPAs compared to dogs with intact CCLs (2.0° ± 0.7° and 2.5° ± 0.8°, respectively). Tibial morphology differs between large and small breed dogs; however, the significance of the impact of TPA on CCL disease in small breed dogs is unknown.
authors.affiliation: Department of Veterinary Clinical Sciences (Su, Townsend, Au) and Veterinary Preventive Medicine (Wittum), The Ohio State University College of Veterinary Medicine, Columbus, Ohio 43210, USA.
authors.forename: Lillian
authors.initials: L
authors.lastname: Su
authors.affiliation: Department of Veterinary Clinical Sciences (Su, Townsend, Au) and Veterinary Preventive Medicine (Wittum), The Ohio State University College of Veterinary Medicine, Columbus, Ohio 43210, USA.
authors.forename: Katy L
authors.initials: KL
authors.lastname: Townsend
authors.affiliation: Department of Veterinary Clinical Sciences (Su, Townsend, Au) and Veterinary Preventive Medicine (Wittum), The Ohio State University College of Veterinary Medicine, Columbus, Ohio 43210, USA.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Au
authors.affiliation: Department of Veterinary Clinical Sciences (Su, Townsend, Au) and Veterinary Preventive Medicine (Wittum), The Ohio State University College of Veterinary Medicine, Columbus, Ohio 43210, USA.
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Wittum
mesh_terms: D000818:Animals; D049628:Body Size / Q000502:physiology*; D004285:Dogs / Q000033:anatomy & histology* / Q000502:physiology*; D005260:Female; D008297:Male; D012189:Retrospective Studies; D013264:Stifle / Q000033:anatomy & histology*; D013977:Tibia / Q000033:anatomy & histology*