Articular type II Monteggia fracture with concurrent humeroulnar luxation in a Bengal cat

A seven-month-old Bengal cat presented with a fracture of the ulna trochlear notch with concurrent caudal luxation of the radial head and humeroulnar luxation. Open reduction and internal fixation was performed using a lateral 2.0-mm locking compression plate to repair the ulna fracture and circumferential sutures passed through bone tunnels to treat the humeroulnar instability. Uncomplicated healing occurred and the cat regained normal elbow range of motion without any recurrence of lameness.