Key takeaways:
- MACI costs much more than microfracture in the first year, roughly two to three times as much in the studies below, but the gap narrows over the following years.
- MACI takes two procedures: a small biopsy first, then the implant weeks later. Microfracture is a single arthroscopic procedure.
- Insurance approval for MACI is common but takes time; the manufacturer reports most cases approved on first submission within about a month.
- If you run a sports medicine practice, I also cover what these numbers mean for the patients who start the process and never finish it.
When I reviewed the pages that rank for this question, most gave one price line per option, several were copies of the same figures, and none explained the two-stage process or the insurance wait. This page covers both.
MACI vs microfracture: the cost answer up front
Microfracture is the cheaper, simpler option. The surgeon makes small holes in the bone under the damaged cartilage so that a repair tissue can form. A US insurance database study found average total charges of about $7,259 per patient for microfracture, including the surgery and the care before and after it. (Orthopaedic Journal of Sports Medicine, 2015)
Autologous chondrocyte implantation, the family MACI belongs to, cost about $16,017 per patient in the same study. Those figures come from 2008 to 2010 data and did not break out the cost of the cells themselves, so treat them as a floor rather than today’s price. MACI also bills the lab-grown implant separately, on top of the two procedures.
The clearest long-run view comes from a German insurance study of 127 matched pairs followed for five years. In the year of surgery, MACI cost about €14,804 against €5,459 for microfracture. In years two and three, costs were close. In years four and five, MACI patients cost slightly less than microfracture patients. (Orthopaedic Journal of Sports Medicine, 2019)
In short: MACI is far more expensive up front, and the difference shrinks the longer you look.
What each procedure actually is
| MACI | Microfracture | |
|---|---|---|
| Number of procedures | Two (biopsy, then implant) | One |
| What repairs the defect | Your own cartilage cells, grown in a lab on a membrane | Repair tissue from the bone marrow |
| Billing | Surgery code CPT 27412 plus the implant, HCPCS J7330 | Arthroscopic procedure only |
| FDA status | Approved in 2016 | Long-established surgical technique |
MACI is approved for symptomatic, full-thickness cartilage defects of the knee in adults. Its label notes that effectiveness in joints other than the knee, and safety and effectiveness in patients over 55, have not been established. (MACI prescribing information, revised 9/2025)
Why MACI takes two surgeries, and what that means for you
The first procedure takes a small sample of your healthy cartilage. The cells are grown in a lab, seeded onto a membrane and sent back for a second surgery, where they are implanted into the defect.
Two procedures means two recovery periods, two sets of facility and anesthesia charges, and a gap in between. It also means some patients never reach the second step. In one military cohort of 58 biopsied knees, 55.2% went on to MACI within two years. (Arthroscopy, Sports Medicine, and Rehabilitation, 2026)
Insurance and prior authorization
According to Vericel’s reimbursement guide, MACI is billed with CPT 27412 for the surgery and HCPCS J7330 for the implant, and the company’s MyCartilageCare program helps with the insurance process. Vericel reports that 89% of MACI cases activated in 2022 were approved on initial submission, with an average turnaround of 25 to 30 days. (Vericel MACI reimbursement guide)
Those are the manufacturer’s own figures, so ask your surgeon’s office about their experience with your insurer. Expect a wait of about a month between deciding and getting approval.
Five-year outcomes
The trial behind MACI’s approval, SUMMIT, randomized 144 patients to MACI or microfracture. At five years, MACI’s advantage on the combined pain and function score was maintained and was statistically significant. (American Journal of Sports Medicine, 2018)
That advantage, and the German finding that later-year costs run lower, is the main argument for paying more up front. For a small defect in an active patient, microfracture may still be the sensible first step. For a larger defect, or after a microfracture that did not hold, MACI is where many surgeons turn.
Questions to ask before you choose
- How large is my defect, and where is it? Size and location drive the recommendation.
- Am I within the approved age range? MACI’s safety and effectiveness over 55 have not been established.
- What will each of the two MACI procedures cost me? Ask for both estimates in writing.
- How long does approval usually take with my insurer?
- If microfracture fails, what is the next step and its cost?
Cartilage damage often comes with other knee injuries. My pages on ACL reconstruction cost and meniscus surgery cost cover the most common ones, and knee replacement cost covers the end of the road that cartilage repair aims to delay.
What this means if you run a sports medicine practice
Three facts, side by side.
Vericel reported MACI revenue of $239.5 million for 2025, up 21% from $197.3 million, with a record number of implanting surgeons and biopsies in the fourth quarter, and guided to $280 to $286 million for 2026. (Vericel full-year 2025 results)
In one cohort that tracked it, only about half of the patients who had a biopsy went on to the implant within two years.
And the patient deciding between the biopsy and the implant waits roughly a month for approval, often with little from the practice explaining what happens next.
What those add up to for your own program is your call. The patients are growing in number, many of them stop between the two steps, and the gap in between is where they are reading.
If you want a second opinion on how your cartilage restoration pages and patient communication look from the patient’s side, book a 20-minute call. I will look at your site and your market before we talk. You can also read what a page like this is worth to an orthopedic practice.
Frequently asked questions
How much does MACI cost compared with microfracture? Much more in the first year. A German study found about €14,804 for MACI against €5,459 for microfracture in the year of surgery, with costs converging over the following years.
Does insurance cover MACI, and how long does approval take? Often, yes. The manufacturer reports 89% of 2022 cases approved on initial submission, with an average turnaround of 25 to 30 days.
Is MACI worth it if microfracture is cheaper? It depends on the defect. The SUMMIT trial found a lasting advantage in pain and function at five years for MACI, and later-year costs ran lower in one large study.
Am I too old for MACI? MACI’s label says safety and effectiveness in patients over 55 have not been established.
What happens if my microfracture fails? Revision options include MACI or other cartilage restoration procedures. Ask your surgeon which fits your defect.
