MI - Childs Veterinary Clinic

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Orthopedic Procedures

Tibial Tuberosity Advancement (TTA)
Lateral Suture (MRIT)
Femoral Head/Neck Excision
Patellar Luxation Repair
Interlocking Nail
Fracture Repair

Tibial Tuberosity Advancement (TTA)

Tibial Tuberosity Advancement (TTA)

TTA is an orthopedic procedure to repair torn cranial cruciate ligaments in dogs.  The function of the cranial cruciate ligament (CrCL) is to stabilize the knee joint, called the stifle in dogs.  It limits the tibia from sliding foward in relation to the femur.

Damage to the CrCL is one of the most common injuries in dogs and causes severe lameness.  Uncorrected CrCL deficiencies have been associated with meniscal damage and degenerative joint diseases such as osteoarthtitis.

The Procedure

The TTA procedure involves making a cut in the front part of the tibia bone (tibial tuberosity) and advancing this portion of bone forward in order to realign the patellar ligament so that the abnormal sliding movement within the knee joint is eliminated.

A specialized bone spacer, plate and screws are used to secure the bone in place.  Bone graft is collected from the top of the tibia and placed in the gap in the bone to stimulate healing.  Recovery restriction time for the TTA requires 12-16 weeks.  Generally dogs are walking near normal by suture removal (10-14 days after surgery).

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