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Mahzoon S, Behmanesh R. Radiological Examination and Etiology of Knee Patellar Dislocation in Small Breed Dogs Referred to Tehran Veterinary Hospitals and Clinics. J Altern Vet Med 2024; 7 (21) :1234-1247
URL: http://joavm.kazerun.iau.ir/article-1-166-en.html

Background and aim: Patellar luxation is a common orthopedic problem in dogs. Medial luxation is more common than lateral luxation and is usually seen more in small breed dogs. Diagnosis is based on clinical manifestations of patellar instability. However, diagnostic imaging is required to assess the degree of bone deformation and then the most appropriate treatment. In this study, the problems and complications related to the stifle joint of dogs referred to small animal clinics in Tehran were investigated from a clinical and radiographic perspective.
Materials and Methods: Relevant data were collected over a one-year period and age, sex, type of involvement, side of involvement, and degree of luxation were recorded.
Results: Of the 100 dogs studied, 28 were diseased (19 males and 9 females) and 72 were healthy (38 males and 34 females). Also, out of 100 dogs studied, 28 were sick (19 dogs aged 1 to 5 years, 5 dogs aged 5 to 10 years, and 4 dogs aged 10 to 15 years) and 72 were healthy (39 dogs aged 1 to 5 years, 19 dogs aged 5 to 10 years, and 14 dogs aged 10 to 15 years). Out of 28 dogs with patellar luxation, 19 dogs had medial luxation (11 dogs aged 1 to 5 years, 4 dogs aged 5 to 10 years, and 4 dogs aged 10 to 15 years) and 9 dogs had lateral luxation (8 dogs aged 1 to 5 years, 1 dog aged 5 to 10 years, and 0 dogs aged 10 to 15 years).
Conclusion: In the present study, it was determined that unilateral luxation were 82.1% and bilateral luxation were 17.9% in the dogs studied.