How Much Does Dog ACL Surgery Cost? (2026)

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Updated September 2026

A dog resting after a walk — a torn ACL (cranial cruciate ligament) is one of the most common orthopedic injuries in dogs, and TPLO surgery can cost $3,500–$7,000.

A torn ACL is one of the most common — and most expensive — orthopedic injuries in dogs. What it costs to fix depends heavily on the surgical technique: roughly $1,200–$2,500 for a lateral suture repair and $3,500–$7,000 for a TPLO. Here's the full breakdown, and — more importantly — the two insurance rules that decide whether you actually get reimbursed.

Quick answer: Dog ACL (CCL) surgery costs about $1,200–$2,500 for lateral suture (smaller dogs) and $3,500–$7,000 for TPLO (larger, active dogs). All-in with diagnostics and rehab, budget $4,000–$8,000 per knee. Insurance covers it if you enrolled before symptoms — but watch the cruciate waiting period and any bilateral exclusion.

ACL, CCL, TPLO — what's actually what

Quick clarification, because the terms get mixed up. ACL (anterior cruciate ligament) is the human name owners use; in a dog, the same ligament is properly called the CCL (cranial cruciate ligament).^[1] And TPLO isn't the injury at all — it's one of the surgeries used to repair a torn CCL (tibial plateau leveling osteotomy), alongside TTA and lateral suture. Which surgery your dog needs — and therefore the price — depends mostly on its size and activity level.

Dog ACL surgery cost by technique

Technique	Best for	Typical cost
Lateral suture (extracapsular)	Dogs under ~30 lb	$1,200–$2,500
TTA (tibial tuberosity advancement)	Medium–large dogs	$3,000–$5,500
TPLO (gold standard)	Large, active dogs	$3,500–$7,000

Those are surgical fees. The all-in bill is higher once you add the rest of the care.

The full itemized cost

Line item	Typical cost
Exam, X-rays & diagnosis	$300–$600
Pre-op bloodwork	$150–$250
Surgery + anesthesia (technique above)	$1,200–$7,000
Medications & recheck visits	$200–$400
Physical therapy / rehab	$500–$1,500+
Typical all-in, per knee	$4,000–$8,000

And here's the number that changes everything: about half of dogs that tear one cruciate ligament tear the other within one to two years, which can push the lifetime total to $7,000–$12,000.^[1] That single fact is why the insurance details below matter so much.

What you'd actually pay with insurance

On a $5,000 TPLO, the out-of-pocket cost depends entirely on whether you were covered before the limp started:

Not insured / pre-existing $5,000 You pay the full bill

What most owners have Insured · 80% / $500 deductible $1,400 You save ~$3,600

Insured · 90% / $250 deductible $725 You save ~$4,275

Illustrative — worked examples using common plan settings, not quotes from any specific insurer. Run your own numbers on the cost calculator.

The two insurance traps unique to ACL

Cruciate injuries are the one condition where the fine print really bites. Two clauses decide whether your claim is paid:

The cruciate / orthopedic waiting period. Many insurers apply a special waiting period to cruciate and orthopedic conditions — often 6 months, up to 12 at some — instead of the standard ~14-day illness wait. Several will shorten or waive it if your vet completes an orthopedic exam shortly after you enroll.^[2] A claim filed inside that window is denied.
The bilateral exclusion. Because ~50% of dogs tear the second knee, some insurers treat cruciate disease as "bilateral by nature" and exclude the other leg once the first is diagnosed — even years later. Others cover both knees independently.^[2] This one clause can quietly cost you a second $5,000 surgery, so confirm it in writing before you buy.

The move that saves the most: if you have a young or large-breed dog with no knee problems yet, enrol now, book the orthopedic exam to clear the waiting period, and pick an insurer that covers both knees independently. That combination is worth far more than a few dollars of monthly premium.

Already dealing with a limp?

Is your dog limping, holding up a back leg, or stiff after rest? See your vet — a torn cruciate needs diagnosis and, usually, surgery. If your dog isn't already insured, this knee will be a pre-existing condition and won't be covered, so ask about CareCredit or Scratchpay financing or a payment plan. But given the ~50% odds of the other knee going, insuring now — with a plan that covers both legs — can still protect you from the second bill.

Best plans for cruciate coverage

For an at-risk dog with healthy knees today, favor a plan with a short (or vet-waivable) orthopedic waiting period, no bilateral exclusion, and a high annual limit. Compare these and get a live quote:

Trupanion Spot Embrace Fetch Healthy Paws Lemonade

Compare coverage and local premiums in your state. Premiums and surgeon rates vary by location. See rates and top picks for Tennessee, Oregon, Wisconsin, or your own state.

Frequently Asked Questions

How much does dog ACL surgery cost?

It depends on the technique. Lateral suture (extracapsular) repair, used for smaller dogs, runs about $1,200–$2,500. TPLO — the gold standard for larger, active dogs — costs about $3,500–$7,000. Add diagnostics, bloodwork, medications, and physical therapy and the all-in figure is often $4,000–$8,000 per knee.

Does pet insurance cover ACL / cruciate surgery?

Yes, if the dog was insured before any knee symptoms — but cruciate injuries have two catches. Many insurers apply a special orthopedic/cruciate waiting period (often 6 months, sometimes waivable with a vet exam) instead of the standard 14 days, and some apply a bilateral exclusion that can deny the second knee once the first is diagnosed. Always confirm both in writing.

What is the difference between ACL, CCL, and TPLO?

ACL is the human term owners use; in dogs the same ligament is the cranial cruciate ligament (CCL). TPLO (tibial plateau leveling osteotomy) is not the injury — it's one of the surgeries used to repair a torn CCL, alongside TTA and lateral suture.

Will my dog tear the other ACL too?

Often, yes. Studies find roughly half of dogs that tear one cruciate ligament tear the other within one to two years, which can double the lifetime cost to $7,000–$12,000. This is exactly why an insurer's bilateral coverage terms matter so much.

Sources & references

American College of Veterinary Surgeons — Cranial Cruciate Ligament Disease: CCL anatomy, surgical options (TPLO / TTA / lateral suture), and the high rate of the opposite knee also rupturing.
National Association of Insurance Commissioners — Pet Insurance: waiting periods, pre-existing conditions, and how exclusions are defined.
US Bureau of Labor Statistics — Consumer Price Index, Veterinarian services (CUUR0000SEMD01): the published price trend for US veterinary care.

Note on pricing: Cost ranges on this page are illustrative 2026 US market averages and vary widely by region, clinic, dog size, and technique. No public dataset publishes average US prices per procedure, so these are estimates rather than measured figures. What is measured is the trend, though the percentage is ours and not the Bureau's: our own calculation from the BLS Consumer Price Index for veterinarian services (series CUUR0000SEMD01) puts the rise in US veterinary prices at 19.4% between 2021 and 2025, an average of 4.5% a year. The Bureau did not collect the October 2025 index during the lapse in appropriations; we substitute the mean of September and November. The BLS publishes the index, not this percentage. Reimbursement examples use common plan settings and are not quotes from any specific insurer. Waiting-period and bilateral-exclusion rules differ by provider — always confirm in writing. Your actual cost and coverage depend on your pet's breed, age, ZIP code, and plan terms. This page is general information, not veterinary or financial advice — always confirm prices with your vet and coverage with each provider.

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