Tibial Plateau Leveling Osteotomy (TPLO) surgery corrects a torn cranial cruciate ligament in your dog’s knee. TPLO surgery is the most common procedure performed by Summit Veterinary Specialty Center, and Dr. Uhl performs over 500 of these procedures per year. Our surgery service offers this only surgery for cranial cruciate ligament ruptures in dogs over 25 pounds. Signs that your pet may have this injury include sitting off to the side instead of sitting straight, a clicking sound coming from the joint, and not bearing total weight on the hind leg. Cruciate injuries can be diagnosed by your veterinarian using a cranial drawer or tibial thrust test, and x-rays can help support the diagnosis.