This is one of the most intuitive demonstrational tools used by veterinarians. The TPLO Model allows veterinarians to explain and demonstrate the principles of TPLO surgery to repair a ruptured cranial cruciate ligament in dog’s knee joint. The adjustable tibial plateau shows the before and after TPLO surgery physics of the stifle joint. The model makes it clear to the pet owner what TPLO surgery is all about. When the client can experience the shifting in the knee joint before surgery position, versus the after-surgery, corrected position, it clarifies “Why TPLO”.