Cyclist representing functional recovery after knee cartilage surgery

CartiHeal Agili-C · Treatment comparison

CartiHeal vs microfracture

CartiHeal places a biphasic scaffold across cartilage and bone. Microfracture stimulates marrow through small bone channels. The five-year comparator needs precise wording.

Quick answer

The CartiHeal randomised trial reported better five-year outcomes than a control arm using debridement or microfracture. It was not a pure microfracture-only comparison. The procedures also differ substantially in how they create the repair environment.

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Mechanism

A biphasic scaffold and marrow stimulation take different routes

Microfracture creates small channels in subchondral bone so marrow elements can enter the defect and form repair tissue. CartiHeal prepares a cylindrical osteochondral site and fills it with a porous biphasic implant intended to support cartilage-like tissue above and bone below.

Both are single-stage operations and both involve subchondral bone. The material placed, lesion geometry and intended repair environment differ.

CartiHeal biphasic implant in cartilage and bone
CartiHeal occupies the prepared osteochondral site with distinct cartilage-facing and bone-facing zones.
Active adult representing patient-reported functional outcomes
The five-year outcome separation is clinically important, but the comparator must be named correctly.

Trial interpretation

The randomised control was not microfracture alone

The published CartiHeal trial used a surgical standard-of-care control arm comprising debridement or microfracture. At five years, the implant group had better mean KOOS, responder and failure outcomes than that combined control.

It is accurate to say CartiHeal outperformed the trial control arm. It is more precise than claiming the study was a pure head-to-head comparison against microfracture in every patient.

Choosing between operations

Lesion, bone, previous surgery and future options shape the choice

Lesion size and location, subchondral bone, age, alignment, stability, previous marrow stimulation and rehabilitation capacity all affect which cartilage operation is proportionate.

Neither procedure is a universal solution for diffuse arthritis. Alternatives can include scaffold, cell-based, graft, alignment or replacement pathways depending on the whole knee.

CartiHeal is not yet bookable at LCC. This comparison explains the evidence and surgical concepts rather than recommending one procedure online.

Side-by-side

Implant scaffold or marrow stimulation?

Question
CartiHeal
Microfracture
Core method
Porous biphasic osteochondral implant
Small subchondral channels release marrow elements
Material placed
Off-the-shelf aragonite scaffold
No permanent implant placed in the defect
Stages
Single operation
Single operation
Bone involvement
Prepared cylindrical osteochondral bed
Perforation of subchondral plate
Five-year trial
Compared against combined debridement/microfracture control
Part of the control strategy, not a pure microfracture-only arm
consulting-in-office-with-pen

CartiHeal and microfracture questions

Did CartiHeal beat microfracture in the trial?

CartiHeal produced better outcomes than a control arm using debridement or microfracture. The most precise description is superiority to that combined control, not a pure microfracture-only trial.

Are both procedures single-stage?

Yes. Neither requires a separate cell-harvest operation, although the surgical techniques and biological strategies differ.

Do both involve bone?

Yes. Microfracture perforates subchondral bone; CartiHeal creates a prepared cylindrical bed extending into bone for the biphasic implant.

Which has the easier recovery?

Both require cartilage-protection rehabilitation. Exact restrictions depend on lesion, location, procedure and associated work, so the answer is individual.

Still have more specific concerns?

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Options that our doctors may discuss include NanoACi, ChondroFiller, Mytocel MSK, joint replacement, established conservative care or surgery, depending on examination and imaging.

Compare current cartilage options for your lesion

Professor Lee can explain established surgical choices and record CartiHeal interest while availability develops.

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