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Francesco Di Dona, Giovanni Della Valle, Gerardo Fatone Department of Veterinary Medicine and Animal Productions, University of Napoli “Federico II”, Naples, Italy Abstract: Patellar luxation is a common orthopedic problem in dogs. Medial luxation is more common than lateral luxation and is usually diagnosed in dogs of small breed. Diagnosis is based on clinical evidence of patellar instability; however, diagnostic imaging is required to assess the amount of skeletal deformity and then the most appropriate method of treatment. Surgical options include both soft tissue and osseous techniques, however, in most of the cases, a combination of more procedures is used to achieve the correction of the luxation. Complication rate is generally low and the most common complications include reluxation and implant-associated complications. Prognosis is generally favorable, with most of the dogs returning to normal limb function. This article describes patellar luxation features in dogs, including clinical presentation, diagnosis, and treatment options available. Keywords: medial patellar luxation, lateral patellar luxation, stifle, pelvic limb, dog, small breeds, canine