Case Description-Two foals with lateral patella luxation were referred to the Veterinary Clinic of Ferdowsi University of Mashhad. Case 1 was an 8-month-old male KWPN foal and the second case was a 2-day-old female Arabian foal. Clinical Findings- The KWPN foal presented with severe lameness at walk due to lateral patella luxation in both hind limbs. The second case was unable to stand after birth as a result of complete bilateral patella luxation. In both patients luxation of the patellas were confirmed on physical examinations and radiologic assessment. Treatment and Outcome- For correction of patella luxation in both cases, the surgical technique includes lateral release of patella was performed by transection of the lateral patellar structures and stabilization of the patella by imbrication method. 2 weeks after surgery in KWPN foal, the lameness was decreased significantly and 4 months after operation horse owner reported that the foal walked normally. The Arabian foal was able to stand Short periods after surgery, 2 months post-surgical follow up, showed the foal bears weight on hind limbs. Clinical Relevance-It was concluded that patella luxation as a congenital cause of lameness in foals can correct by surgical techniques successfully.

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