What is Tibial Plateau Leveling Osteotomy (TPLO) and antirotation suture?

TPLO is a surgical procedure commonly used to treat cranial cruciate ligament rupture (CrCLR) in dogs. Here are the key points:

1. Indications:

   • Dogs with CrCLR, especially those weighing over 60 lb.
   • Animals with persistent lameness despite nonsurgical management.
   • Cases where conservative treatment (exercise restriction, weight loss, physical therapy) is insufficient.

2. Procedure:

   • A curved cut is made in the tibia, resembling half a smiley face.
   • The top section of the tibia is rotated backward to achieve an appropriate tibial plateau angle (typically 2-14 degrees, with 5 degrees being ideal).
   • The goal is to neutralize cranial tibial thrust during weight-bearing, reducing pain and slowing osteoarthritis progression.

3. Post-Op:

   • Pain management and rehabilitation are crucial.
   • Controlled exercise to promote healing.
   • Regular follow-up visits to monitor progress.

4. Benefits:

   • Provides one of the best returns to normal clinical function.
   • Predictable outcome compared to lateral sutures.
   • Reduces the risk of future instability.

Antirotation Suture

Antirotation suture is an additional technique used during TPLO surgery to prevent tibial rotation. It involves placing a suture around the fabella (a small bone in the knee joint) to stabilize the joint further.

Remember, always consult a veterinarian for personalized advice and recommendations.