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Clinical signs and results of treatment in cats with patellar luxation: 42 cases (1992–2002)
Journal article   Peer reviewed

Clinical signs and results of treatment in cats with patellar luxation: 42 cases (1992–2002)

Catherine A. Loughin, Sharon C. Kerwin, Giselle Hosgood, P. Brendon Ringwood, Jamie Williams, Joseph D. Stefanacci and Robert J. McCarthy
Journal of the American Veterinary Medical Association, Vol.228(9), pp.1370-1375
2006
DOI: https://doi.org/10.2460/javma.228.9.1370
PMID: 16649941
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Abstract

Objective: To describe clinical signs and results of treatment in cats with patellar luxation. Design: Retrospective case series. Animals: 42 cats in which patellar luxation had been diagnosed on the basis of results of palpation of the stifle joints. Procedures: Degree of luxation was graded on a scale from 1 to 4, and severity of lameness was graded on a scale from 0 to 5. Radiographs of stifle joints were evaluated for signs of osteoarthritis. Long-term function was classified as poor, fair, good, or excellent. Results: 34 cats had bilateral luxation and 8 had unilateral luxation. Only 7 (17%) cats had a history of trauma. Mean age of the cats was 3.3 years, and mean weight was 4.26 kg (9.4 lb); 26 (62%) were domestic shorthairs. Seventy-three of the 76 (95%) affected joints had medial patellar luxation. Luxation grades could be assigned to 65 joints, with grade 2 (30 joints) and 3 (22 joints) luxation being most common. Lameness grades could be assigned to 73 joints, with grade 1 lameness (27 joints) most common. Outcome was excellent for 8 of 17 joints treated without surgery and for 23 of 35 joints treated surgically. Complications attributable to surgery were reported in 8 cats. Conclusions and Clinical Relevance: Patellar luxation should be considered as a cause of hind limb lameness in cats. Low-grade luxation can be associated with lameness of the same severity as high-grade luxation. Surgical correction of patellar luxation in cats with grade 2 or 3 lameness can result in a favorable outcome.

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Collaboration types
Domestic collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.232 Veterinary Sciences
3.232.1715 Canine Orthopedics
Web Of Science research areas
Veterinary Sciences
ESI research areas
Plant & Animal Science
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