Find a dog or cat Insurance
Find a dog or cat
ACL Surgery - vet costs and insurance

Dog ACL Surgery - costs, what to expect & insurance

ACL (cruciate ligament) surgery costs $3,000-$6,000 per knee. TPLO and TTA reshape the bone to stabilize the joint without the torn ligament. About 40-60% of dogs tear the other ACL within 1-2 years, potentially doubling the cost.

  1. Key Facts & Real Costs
  2. Insurance Traps
  3. Common Questions

Key Facts & Real Costs

What Is It

The cranial cruciate ligament stabilizes the knee. When torn, the joint becomes unstable, causing pain, lameness, and rapid arthritis. Dogs rarely heal with rest; surgery is standard for medium to large dogs. Affects all breeds but large dogs most often

The Process

TPLO rotates the tibia to change joint angle; TTA advances the tibial tuberosity. Both achieve similar results via different methods, require metal implants, and take 1-2 hours under anesthesia. TPLO is the most recommended technique

Cost Breakdown - $3,000-$6,000

TPLO: $3,500-$6,000 per knee. TTA: $3,000-$5,000. Lateral suture: $1,000-$2,500. Includes diagnostics, surgery, implants, anesthesia, hospitalization, medication, and follow-up. Board-certified surgeons charge more but have higher success rates.

Recovery & Aftercare

Strict rest for 6-8 weeks: leash walks only, no stairs or jumping. Physical therapy recommended. Gradual return to activity weeks 8-16. Follow-up X-rays at 6-8 weeks confirm healing. Full activity at 4-6 months. Full recovery in 8-16 weeks

Total Cost - $3,000-$6,000

Per knee. If both knees need surgery, expect $6,000-$12,000 total. Physical therapy adds $50-$100 per session.

Success Rate - 90-95%

TPLO has a 90-95% success rate. Most dogs return to normal or near-normal activity. Complications include infection and implant failure.

Duration - 1-2 Hours

Surgery takes 1-2 hours. Most dogs stay overnight for monitoring and pain management.

When It's Needed

When the cruciate ligament is partially or fully torn. Recommended for dogs over 30 pounds - smaller dogs may do well with conservative management.

Red flags
Insurance Traps

ACL surgery is one of the most common large claims. Insurers know it - and have specific rules.

Coverage Coverage Basics
Most policies cover ACL surgery if enrolled before lameness or knee issues appear. ACL tears are one of the most frequently claimed conditions in pet insurance. Coverage includes diagnostics, surgery, hospitalization, medication, and follow-up visits. Some policies cover physical therapy.
Waiting period Waiting Period Warning
Many insurers impose a 6-month orthopedic waiting period for cruciate ligament issues. Any lameness during this period may permanently exclude ACL. ACL tears are classified as illness, not accident, by most insurers.
Deductible Cost vs Deductible
At $3,000-$6,000 per knee, insurance proves its value. With a $500 deductible and 80% reimbursement, you save $2,000-$4,400 per knee. Both knees double the savings. This condition can pay for years of premiums.
Bilateral Bilateral Exclusion Trap
Some insurers treat bilateral ACL as a single condition - one deductible and one annual limit for both knees. Others treat each separately. If treated before enrollment, the second knee may be excluded as pre-existing. Read the fine print.

Common Questions

How much does ACL surgery cost for a dog?
TPLO: $3,500-$6,000 per knee. TTA: $3,000-$5,000. Lateral suture: $1,000-$2,500. All include diagnostics, anesthesia, implants, hospitalization, medication, and follow-up. Board-certified surgeons charge more. About 40-60% of dogs eventually need the second knee done.
What is the difference between TPLO and TTA?
Both change knee geometry so the torn ligament isn't needed. TPLO rotates the tibia; TTA advances the tibial tuberosity. Both have ~90-95% success rates. TPLO is more widely performed with more long-term data. Your surgeon recommends based on your dog's anatomy.
Can a dog recover from a torn ACL without surgery?
Small dogs under 30 lbs sometimes manage with rest, anti-inflammatories, and physical therapy. For dogs over 30 lbs, conservative management rarely works. The unstable knee leads to meniscus damage, chronic pain, and arthritis. Surgery is strongly recommended for medium to large dogs.
How long is recovery after ACL surgery?
Expect 8-16 weeks of restricted activity. Strict rest and leash-only walks for 6-8 weeks. X-rays at 6-8 weeks confirm healing. Gradual return to activity weeks 8-16. Full activity at 4-6 months. Physical therapy speeds recovery.
Will my dog need surgery on the other knee too?
About 40-60% tear the other ACL within 1-2 years - the second knee bears extra strain. Keep your dog lean, use joint supplements, and avoid high-impact activities to reduce risk. Maintain insurance coverage given this likelihood.
What are signs of a torn ACL in dogs?
Sudden lameness, holding up a back leg, sitting with leg extended sideways, difficulty rising, knee swelling, clicking when walking, and stiffness after rest. Some tears happen suddenly; others develop gradually.
What happens if ACL surgery is not done?
The unstable knee develops progressive arthritis, meniscus tears, and chronic pain. Weight shifts to other legs. Most medium to large dogs develop significant lameness and require long-term pain management.
Does pet insurance cover ACL surgery for dogs?
Yes, if enrolled before symptoms appear. Many impose a 6-month orthopedic waiting period. Bilateral clauses may affect the second knee. Enroll early and keep records of clean exams.

Read More
TPLO Surgery Cost in 2026: $3,500-$7,000 Rural vs Urban Breakdown 9 min read TPLO Surgery Cost in 2026: $3,500-$7,000 Rural vs Urban Breakdown
Marcel Janik, founder of RealVetCost
Marcel Janik Founder of realvetcost.com

My mother-in-law took her German boxer to the veterinary emergency room - $1,200 in tests, no answers. A different vet solved it in minutes with $8 pills.

Sources

Research and data used to compile this profile.

  1. 1 Witsberger TH, Villamil JA, Schultz LG, Hahn AW, Cook JL. Prevalence of and risk factors for hip dysplasia and cranial cruciate ligament deficiency in dogs. J Am Vet Med Assoc. 2008;232(12):1818-24.
  2. 2 Krotscheck U, Nelson SA, Todhunter RJ, Stone M, Zhang Z. Long term functional outcome of tibial tuberosity advancement vs. tibial plateau leveling osteotomy and extracapsular repair in a heterogeneous population of dogs. Vet Surg. 2016;45(2):261-8.
  3. 3 Bergh MS, Budsberg SC. Systematic review of surgical treatments for cranial cruciate ligament disease in dogs. J Am Anim Hosp Assoc. 2014;50(5):315-21.