In our experience most of the patients with TTA surgery are large breed dogs between 25-45kg. We heve had experienced to work with gient dog (70kg Neapolitan mastiff) and very small dog (6kg Poodle). Furthermore, the expectations before surgery were that the bigger dog will be a problem for setting the implants, but after both surgeries we were surprised how difficult was to set all implants into the smaller dog. Making the plane of TTA surgery for small dog our biggest concern before the surgery of poodle was how we would cut the bone, but that part was easiest of the surgery. Placing the cage and screws was the real challenge. The toughest job was insert the fork into the TTA plate that took most of the time of surgery. Overall, TTA would be the first chouse for ACL rupture in dogs.