Peer-reviewed veterinary case report
Tibial twisting linked to kneecap slipping in Yorkshire Terriers
By Fitzpatrick, Courtney L et al.Ā·Published in Veterinary surgery : VSĀ·2012Ā·Veterinary Specialties Referral Center, United StatesĀ·View original on PubMed ā
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Original publication title: Evaluation of tibial torsion in Yorkshire Terriers with and without medial patellar luxation.
Plain-English summary
A group of Yorkshire Terriers with medial patellar luxation (MPL), a condition where the kneecap slips out of place, was studied to see if there was a link to tibial torsion, which is a twist in the shin bone. The research found that as the severity of MPL increased, the tibial torsion angle decreased, and older dogs tended to have more severe MPL. Interestingly, heavier dogs had less severe MPL. This suggests that both the shape of the bone and the dog's weight and age may play a role in developing this knee problem.
People also search for: Yorkshire Terrier knee problems Ā· medial patellar luxation treatment Ā· dog tibial torsion symptoms
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.
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Search related cases āOriginal publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23198923/