CCL rupture affects approximately 1.2% of dogs annually, with large breeds (Rottweilers, Labrador Retrievers, Newfoundlands) at highest risk. Unlike human ACL tears (often traumatic), canine CCL disease is typically degenerative. Use the Orthopedic Specialist for case discussions and the X-Ray Analyzer AI for radiographic learning.
CCL disease results from progressive ligament degeneration, often without acute trauma. Obesity, genetics, and tibial plateau angle contribute. Rupture leads to cranial tibial thrust and instability, causing pain, lameness, and secondary osteoarthritis.
Drawer sign and tibial compression test are diagnostic. Radiographs may show joint effusion, osteophytosis, and in chronic cases, cranial drawer. Medial meniscal injury is common with CCL rupture.
| Procedure | Mechanism | Best For |
|---|---|---|
| TPLO | Osteotomy to level tibial plateau, eliminates cranial thrust | Large dogs, high activity, steep TPA |
| TTA | Advances tibial tuberosity to align patellar ligament | Medium-large dogs, steep TPA |
| Extracapsular | Lateral suture stabilizes joint | Small dogs (<15 kg) |
TPLO (Tibial Plateau Leveling Osteotomy) is the gold standard for large-breed dogs. Recovery includes 8-12 weeks of restricted activity and physical rehabilitation.
Conservative management (rest, NSAIDs, weight loss, physical therapy) may be appropriate for small dogs, those with contraindications to surgery, or owners who decline surgery. Outcomes are variable; many dogs develop chronic osteoarthritis.
Strict confinement for 8-12 weeks prevents implant failure. Gradual leash walks only. Physical therapy (range of motion, underwater treadmill) accelerates recovery. Monitor for infection, implant loosening, or meniscal click.
Warning: Off-leash activity, jumping, or stairs too early can cause implant failure or meniscal injury. Follow your surgeon's rehabilitation protocol strictly.
- CCL disease is degenerative in dogs; large breeds at highest risk.
- TPLO is gold standard for large dogs; extracapsular for small dogs.
- Conservative management is an option but outcomes vary.
- 8-12 weeks strict confinement post-surgery; physical therapy aids recovery.
- Contralateral rupture is common—monitor both stifles.