Quick Facts: CCL Disease and TPLO in Dogs
- What it is: CCL (cranial cruciate ligament) disease is the canine equivalent of a torn ACL in humans, and it’s the most common orthopedic injury in dogs
- Most affected breeds: Labradors, Rottweilers, Bulldogs, Newfoundlands, Boxers, Golden Retrievers, German Shepherds
- Recommended treatment: TPLO (Tibial Plateau Leveling Osteotomy) is the gold standard surgical repair, especially for active or larger dogs
- Success rate: TPLO has a high success rate, with most dogs returning to full function
- Recovery timeline: 8 to 16 weeks before your dog is back to full activity.
- Where Apex performs TPLO: Brentwood (Nashville metro) and Germantown (Memphis metro), Tennessee
When your veterinarian tells you your dog has a cranial cruciate ligament (CCL) injury and recommends surgery, the next steps can feel overwhelming. This guide walks you through what CCL disease is, why TPLO is widely considered the gold-standard repair, what recovery looks like, and when to see a board-certified veterinary surgeon. At Apex Veterinary Surgery, our DACVS-credentialed surgeons in Brentwood (Nashville) and Germantown (Memphis), Tennessee, perform TPLO surgery and related orthopedic procedures for dogs throughout Middle and West Tennessee.
What Is CCL Disease in Dogs?
The cranial cruciate ligament (CCL) is the canine equivalent of the human anterior cruciate ligament (ACL). It is one of the most important stabilizing structures in your dog’s knee, preventing forward thrust of the tibia (shin bone) and abnormal rotation of the joint during movement.
When the CCL is damaged, the knee becomes unstable. Every step your dog takes can cause abnormal motion in the joint, leading to pain, inflammation, and, over time, degenerative arthritis. CCL injury can occur from sudden trauma, but more often the ligament fails gradually over months or years from wear, weakness, or genetic predisposition. In many dogs, by the time the injury becomes obvious, the ligament has been compromised for some time.
Signs and Symptoms of CCL Injury in Dogs
Watch for these signs, which often progress over weeks or months:
- Sudden or gradual rear-leg limping, especially after activity
- Difficulty rising from a sitting or lying-down position
- Reluctance to jump, run, or climb stairs
- A noticeable “click” or “pop” sound in the knee joint
- Swelling around the knee
- Sitting with the affected leg extended out to the side instead of tucked underneath
- Reduced muscle mass in the affected leg (visible in chronic cases)
If you notice any of these signs, schedule a veterinary exam promptly. Early diagnosis improves outcomes.
Which Dogs Are Most at Risk?
CCL disease can affect any breed, but it occurs more frequently in:
- Larger breeds: Labrador Retrievers, Rottweilers, Newfoundlands, Mastiffs
- Active and athletic breeds: Golden Retrievers, German Shepherds, Boxers
- Brachycephalic and structurally predisposed breeds: Bulldogs, Bullmastiffs
Other risk factors include obesity, advancing age, prior knee injuries, and conformational factors like steep tibial plateau angles. Many dogs who develop CCL disease in one knee will eventually develop it in the other, so close monitoring of both legs is essential.
How Is CCL Disease Diagnosed?
A board-certified veterinary surgeon diagnoses CCL disease through a combination of:
- Physical examination: Specifically, the “cranial drawer” test and “tibial thrust” test, which assess knee stability
- Sedated orthopedic exam: Allows for a more thorough assessment when muscle tension might mask instability
- Radiographs (X-rays): To evaluate joint changes, rule out other causes of lameness, and plan for surgery
- Advanced imaging when needed: In some cases, additional imaging such as MRI may be used to evaluate the meniscus and other soft tissue structures
At Apex Veterinary Surgery, our DACVS surgeons perform a thorough orthopedic workup before recommending surgical intervention.
TPLO Surgery: The Gold Standard for CCL Repair in Dogs
Tibial Plateau Leveling Osteotomy, or TPLO, is the most widely recommended surgical procedure for CCL injury in dogs, especially in medium-to-large active dogs. Rather than attempting to repair or replace the torn ligament, TPLO changes the biomechanics of the knee joint so the ligament is no longer needed for stability.
How TPLO Works
During TPLO surgery, your board-certified veterinary surgeon:
- Makes a curved cut in the top of the shin bone
- Rotates that piece to flatten its natural slope
- Secures the new alignment with a custom titanium or stainless-steel plate and screws
Once healed, the knee joint becomes stable during weight bearing, eliminating the need for the CCL. The plate and screws typically remain in place permanently and are well tolerated by dogs.
Combined post-operative TPLO radiographs from a single case at Apex Veterinary Surgery, showing the implant in side view and front-to-back view. Both confirm proper plate position and bone alignment after surgery.
Why TPLO Is Considered the Gold Standard
TPLO has become the preferred CCL repair for most dogs because:
- Faster return to function: Most dogs are weight-bearing within days of surgery
- More complete recovery: Dogs typically return closer to their pre-injury activity level than with other techniques
- Better outcomes in active and larger dogs: TPLO is especially effective for dogs over 40 pounds and athletic dogs of any size
- Lower long-term arthritis progression: Compared to non-surgical management
- High overall success rate: With proper post-operative care, the vast majority of dogs return to full function
What to Expect After TPLO Surgery
Recovery from TPLO is gradual and requires committed pet-owner involvement. Here is a typical recovery and activity timeline.
Weeks 1–2
Strict rest. Your dog is leashed every time they go outside, even for bathroom breaks. Cold packs on the knee and prescribed pain medication.
Weeks 3–6
Short, controlled leash walks. The walks get longer week by week.
Weeks 7–10
Recheck X-rays to confirm the bone is healing. If everything looks good, light jogging and physical therapy can begin.
Weeks 10–12+
Off-leash activity is allowed once the bone has fully healed.
Throughout recovery, your Apex surgical team will be in regular contact to monitor progress, answer questions, and coordinate with your primary veterinarian as needed.
Are There Risks With TPLO Surgery?
As with any major surgery, TPLO carries some risk. Possible complications include:
- Infection at the surgical site
- Implant complications (rare with proper technique and aftercare)
- Tibial fracture (uncommon)
- Meniscal injury occurring after surgery
- Delayed bone healing in dogs with underlying health conditions
These complications are uncommon when TPLO is performed by a board-certified veterinary surgeon and when post-operative instructions are followed carefully. At Apex, our DACVS-credentialed surgeons combine surgical experience with detailed post-operative care plans to minimize risk and support a smooth recovery.
When to See a Board-Certified Veterinary Surgeon
If your primary veterinarian has identified or suspects a CCL injury in your dog, a referral to a board-certified veterinary surgeon is the next step. The Diplomate of the American College of Veterinary Surgeons (DACVS) credential signals that your surgeon has completed:
- A one-year rotating internship after veterinary school
- A three-year surgical residency
- Published peer-reviewed research
- A rigorous board certification examination
At Apex Veterinary Surgery, both of our surgeons are DACVS-credentialed. We perform TPLO and other orthopedic procedures for dogs throughout Brentwood (Nashville metro), Germantown (Memphis metro), and the surrounding Tennessee communities. We accept referrals from primary care veterinarians and welcome direct inquiries from pet owners.
Frequently Asked Questions
How is canine CCL disease different from a human ACL tear?
Anatomically, the cranial cruciate ligament in dogs is the same structure as the anterior cruciate ligament in humans, just named according to veterinary convention. Functionally, they serve the same purpose. The main difference is that in dogs, CCL injury is more commonly a gradual degenerative process rather than the sudden trauma seen in human ACL tears, though sudden traumatic ruptures do occur.
Can CCL disease in dogs heal without surgery?
For most dogs, especially medium-to-large active dogs, CCL disease will not heal without surgical intervention, and continuing without repair leads to progressive arthritis, chronic pain, and decreased mobility. Smaller, sedentary dogs may sometimes be managed with weight loss, physical therapy, and joint support, but surgical repair generally produces better long-term outcomes. A board-certified veterinary surgeon can advise on the right approach for your individual dog.
How long does TPLO surgery take?
TPLO surgery typically takes 1 to 2 hours per knee, depending on the dog and the specific case. Most dogs go home the same afternoon after surgery.
How much does TPLO surgery cost?
TPLO surgery costs vary by region, surgeon, and individual case. Contact Apex Veterinary Surgery for current pricing and a treatment estimate specific to your dog.
Will my dog eventually need a TPLO on the other knee?
Roughly 40 to 60 percent of dogs who develop CCL disease in one knee will eventually develop it in the other, often within one to two years. This is why weight management, conditioning, and regular orthopedic exams are important after TPLO surgery.
Can both knees be repaired at the same time?
In selected cases, bilateral TPLO (both knees during the same anesthetic event) may be considered, but most surgeons recommend staging the procedures several months apart so the dog can recover on a stable leg. Your board-certified surgeon will recommend the safer option for your dog.
When should I refer my dog to a board-certified veterinary surgeon?
If your primary veterinarian has diagnosed a CCL injury or suspects it based on lameness and physical exam findings, referral to a DACVS-credentialed veterinary surgeon for surgical evaluation is the appropriate next step. Early evaluation often leads to better outcomes.
Does Apex Veterinary Surgery accept referrals from primary care vets?
Yes. Most of our patients come through referral from primary care veterinarians, but we also welcome direct inquiries from pet owners. Visit our Veterinarians page for referral information or our Contact Us page to schedule a consultation directly.
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