Tibial Tuberosity Advancement (TTA) is one of two osteotomy techniques to correct ACL tears. The TPLO is the other and more widely accepted technique..


1. The bone just below the knee or stifle joint is the tibia and the bone above is the femur. The top of the tibia is the tibial plateau. The patellar tendon attaches the kneecap (patella) to the tibial tuberosity.


2. During weight bearing, the femur slides down the tibial plateau. The ACL stops this downward slope, therefore, is under constant tension during weight bearing. This biomechanical problem results in ACL rupture and is directly related to the angle between the tibial plateau slope and the patellar tendon. A more perpendicular angle results in a more stable joint.


3. The TTA involves an osteotomy just behind the tibial tuberosity. The tibial tuberosity is advanced to achieve a perpendicular relationship between the tibial plateau slope and patellar tendon. This relationship results in a stable joint.


4. The advanced tibial tuberosity is secured using titanium implants. A bone graft is packed in the open area of the osteotomy. Healing takes about 8 weeks. Implants do not require removal.



Supplemental Canine ACL Tear & TPLO Reading

FAQ's About Canine TPLO

We know you have a variety of questions about TPLO surgery for your dog. We've answered many commonly asked questions here, but you can be certain...


The most common orthopedic problem in dogs is???

Guess which of the following is the most common canine orthopedic problem: Hip dysplasia, elbow dysplasia, fractures (broken bones), joint luxations...


TPLO for Toy Breed Dogs

Case Summary

Mitey is a 4.4 pound, 6-year-old Yorkshire terrier that presented to Colorado Canine Orthopedics (CCO) for a severe left rear lameness....


What are the Options for Canine ACL Repair?

Anterior cruciate ligament (ALC) tears represent the most common orthopedic problem in small animals. The underlying cause of canine ACL tears remains...


Schedule an Appointment

Call 719-264-6666 or
Click to request your pet's appointment online!

Our staff looks forward to working with you to schedule an evaluation with our doctors to determine if your dog has an orthopedic condition or to discuss surgical options for your pet.
Mon. - Fri., 7:30 a.m. - 5:30 p.m.
Sat., 7:30 a.m. - 3 p.m.

Follow Us!

Follow Me on Pinterest

Follow or Reviewon Google+

Follow Chuck, our tiny resident blogger
at Chuck's Waggin!