Last updated: March 2026
How Much Does Knee Replacement Surgery Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Total Knee Replacement | $25,000 – $50,000 | $4,000 – $10,000 |
| Partial Knee Replacement | $20,000 – $40,000 | $3,000 – $8,000 |
| Bilateral Knee Replacement | $40,000 – $90,000 | $6,000 – $15,000 |
| Robotic-Assisted Knee Replacement | $30,000 – $60,000 | $5,000 – $12,000 |
CPT/ADA Code: 27447
What Affects the Cost
- Brand-name vs. generic availability
- Insurance formulary tier placement
- Pharmacy choice (retail vs. mail-order vs. Costco)
- Manufacturer savings cards and coupons
- Dosage and quantity prescribed
- Geographic location
Insurance Coverage
Typical coverage: Medically necessary — covered after deductible; prior authorization often required
Most insurance plans use a tiered formulary: Tier 1 (generic) $0-$15 copay, Tier 2 (preferred brand) $25-$75, Tier 3 (non-preferred brand) $50-$150, Tier 4 (specialty) $100-$500+. Prior authorization may be required for certain medications. Step therapy may require trying cheaper alternatives first.
How to Save Money
- Always ask for generic when available — saves 50-90%
- Use GoodRx, RxSaver, or similar discount cards
- Costco pharmacy is open to non-members and often has lowest prices
- Mark Cuban's Cost Plus Drugs offers transparent low pricing
- Manufacturer patient assistance programs provide free medication to qualifying patients
- HSA/FSA funds can cover medication costs tax-free
Related Procedures & Costs
Frequently Asked Questions
Total knee replacement costs $25,000 to $50,000 without insurance. Prices vary significantly by hospital, location, and implant type.
Modern knee replacements typically last 15-25 years. About 90% of implants are still functioning well at 20 years.
Most patients walk with assistance within a day of surgery. Full recovery takes 3-6 months, with physical therapy beginning immediately.