Courtney L Fitzpatrick1, Ursula Krotscheck, Margret S Thompson, Rory J Todhunter, Zhiwu Zhang.
Abstract
OBJECTIVE: To determine if medial patellar luxation (MPL) in Yorkshire Terriers is associated with tibial torsion. STUDY
DESIGN: Prospective cross-sectional study. ANIMALS: Yorkshire Terriers (n = 30; 60 tibiae).
METHODS: Each MPL was graded using a categorical grading scheme. Computed tomography of the tibiae was performed and tibial torsion angle (TTA) was assessed. MPL grade was analyzed with a general linear model where the independent variables include sex, neutering status, age, weight, and TTA.
RESULTS: Factors that had collective impact on MPL grade were TTA, age, and weight squared. As MPL grade increased, TTA decreased by 0.05° and age increased by 0.13 years. As weight increased, MPL decreased. There was no effect (P > .05) from scorers, side, and neutering status.
CONCLUSION: Body weight squared, TTA, and age affect MPL grade, suggesting that a torsional deformity may contribute to the development of MPL in Yorkshire terriers along with weight and age. © Copyright 2012 by The American College of Veterinary Surgeons.
OBJECTIVE: To determine if medial patellar luxation (MPL) in Yorkshire Terriers is associated with tibial torsion. STUDY
DESIGN: Prospective cross-sectional study. ANIMALS: Yorkshire Terriers (n = 30; 60 tibiae).
METHODS: Each MPL was graded using a categorical grading scheme. Computed tomography of the tibiae was performed and tibial torsion angle (TTA) was assessed. MPL grade was analyzed with a general linear model where the independent variables include sex, neutering status, age, weight, and TTA.
RESULTS: Factors that had collective impact on MPL grade were TTA, age, and weight squared. As MPL grade increased, TTA decreased by 0.05° and age increased by 0.13 years. As weight increased, MPL decreased. There was no effect (P > .05) from scorers, side, and neutering status.
CONCLUSION: Body weight squared, TTA, and age affect MPL grade, suggesting that a torsional deformity may contribute to the development of MPL in Yorkshire terriers along with weight and age. © Copyright 2012 by The American College of Veterinary Surgeons.
Entities:
Mesh：
Year: 2012
PMID： 23198923 DOI： 10.1111/j.1532-950X.2012.01041.x
Source DB: PubMed Journal: Vet Surg ISSN： 0161-3499 Impact factor: 1.495