Introduction Patellar luxation is a dislocation of patella either toward the inside (medial) or outside (lateral) of the leg. This orthopedic problem is most common in toy and miniature dog breeds and is uncommon in cats, but patellar luxation in rabbits is rare. Materials and Methods A 6-month-old female New Zealand White rabbit was referred to Faculty of Veterinary Medicine, Ferdowsi University of Mashhad because of left hind limb lameness. On physical examination, the left hind limb was unable to extend and the rabbit walked balancing its weight on the forelimbs. Palpation of the left stifle joint revealed medial patellar luxation. The patella was luxated permanently, but could not be reduced to its normal position manually. After physical examination, the clinical diagnosis of medial patellar luxation in left leg with a grade IV was confirmed by radiographic examination. In lateral radiograph, patella was seen out of the trochlear groove of left femoral bone and superimpose with caudal femoral cortex. The tibia was rotated medially in medio-lateral view. Cranio-caudal view was shown patella in the medial side of left femoral epicondyle. Conclusion This case is reported because patellar luxation has been seen in rabbits rarely.

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