A 4 year old female spayed Labrador Retriever presented to the Orthopedic Surgery Service at Cornell University Hospital for animals for an acute onset of non-weight bearing lameness on the right hind leg while trotting with her owner. After a cranial cruciate rupture was confirmed by physical examination and radiographs, a Tibial Plateau Leveling Osteotomy was successfully performed. Post operative radiographs confirmed appropriate rotation of Tibial Plateau.