◍ AutoCart™ · Knee & Ankle

Cartilage graft for the knee and ankle

An autologous single-stage procedure — your own cartilage to repair your cartilage.

Persistent knee or ankle pain warrants an assessment. For some localised cartilage lesions, an autologous cartilage graft may be discussed after examination and imaging.

Knee joint · cartilage and meniscus
AUTOCART™
REGEN · 02
◍ The problem

Cartilage does not repair itself

Cartilage is an unusual tissue: it is avascular, meaning it receives no blood supply. Without blood vessels, it cannot regenerate spontaneously the way bone or muscle does. Once damaged — by trauma, osteochondritis, or localised wear — cartilage stays injured, and pain becomes chronic.

— Analogy

Cartilage is like the Teflon coating on a pan: once scratched, it does not repair itself. You have to intervene.

Arthroscopic view · cartilage lesion
Arthroscopic view · cartilage lesion
◍ Treatment options

Different options to discuss in consultation

Injections

PrincipleMay be discussed to relieve symptoms.
The choice depends on your clinical assessment.

Microfracture

PrincipleA technique intended to stimulate repair tissue.
The choice depends on your clinical assessment.

Joint replacement

PrincipleAn option discussed in a different clinical context, particularly advanced osteoarthritis.
The choice depends on your clinical assessment.

Chondrocyte transplantation (MACI / ACI)

PrincipleA cell-based cartilage repair technique performed in two stages.
The choice depends on your clinical assessment.
◍ The AutoCart™ Solution

Autologous cartilage graft: an option for selected lesions

The AutoCart™ technique uses the patient’s own cartilage.

The technique uses cartilage fragments from the patient. Its suitability, practical details and possible associated procedures are explained during the consultation.

◍ The healing triad
/01

Minced chondrocytes

— Your cartilage
↓
Regenerative cells
/02

PRP — Platelet-Rich Plasma

— Your centrifuged blood
↓
Growth factors
/03

Autologous fibrin glue

— Your blood
↓
Fixation matrix

These three elements combined trigger the regeneration of hyaline cartilage — the real cartilage, strong and long-lasting.

◍ The procedure

Step by step — six stages, a single procedure

— Step 01 · Diagnosis

Visualisation of the lesion under arthroscopy

The lesion is assessed under arthroscopic guidance.

Focal lesion · intraoperative view
Focal lesion · intraoperative view
— Step 02 · Preparation & harvest

Debridement and harvest of your healthy cartilage

Cartilage fragments are collected and the area to be treated is prepared.

Debridement & shaver · intraoperative sequence
— Step 03 · PRP

Activation of your platelet-rich plasma

Blood is processed to prepare platelet-rich plasma (PRP).

PRP preparation · double syringe
— Step 04 · Graft

Placement of the graft — the lesion is filled

The cartilage fragments are placed in the prepared defect.

Paste application
— Step 05 · Stabilisation

Graft stabilisation

The graft is stabilised according to the planned technique.

Fibrin application
— Step 06 · Result

Final check

The treated area is checked. Healing and recovery are assessed over time.

Before · initial lesion
Before · initial lesion
After · surface filled
After · surface filled
◍ Indications

Is this technique right for you?

✓ Indicated for

  • Chondral or osteochondral lesions grade 3 to 4 (Outerbridge)
  • Lesion size, depth and location assessed individually
  • Knee: femoral condyle, tibial plateau, patella
  • Ankle: talar dome (osteochondral lesion)
  • Active patient wishing to preserve a native joint
  • Failure of conservative treatments (injections, physiotherapy)
  • Failure or insufficient result of microfractures

✗ Not indicated if

  • Diffuse joint osteoarthritis
  • Uncontrolled ligament injury
  • Unstable meniscal lesion not controlled
  • Significantly deviated mechanical axis not corrected

A specialist consultation is required to assess your situation on the basis of the clinical examination and imaging (MRI in particular).

◍ Post-operative recovery

After surgery: what to expect

A personalised recovery plan

The location of the lesion and any associated procedures determine the recovery plan. This page is not a prescription.

Before surgery
Discuss the planned procedure and personalised recovery instructions.
After surgery
Follow the prescribed weight-bearing, crutch and brace instructions.
Rehabilitation
Progress according to your surgeon and physiotherapist’s assessment.
Return to activity
Resume work and sport only after individual assessment.
◍ Results & scientific data

Goals, follow-up and limitations

Results must be interpreted in the context of each patient.

Patient information: cartilage restoration (AAOS, English)

/01

Goals

Discuss pain, function and your activity goals.

/02

Individual outcomes

Improvement varies; a particular result cannot be guaranteed.

/03

Follow-up

Recovery is assessed during follow-up visits, with imaging when indicated.

/04

Risks and limitations

Persistent pain, stiffness, infection, thrombosis or failure of the graft may occur. Further surgery may be needed. Discuss your individual risks in consultation.

MRI M0
MRI M3
MRI M6
◍ POST-OP FOLLOW-UP · MRI
M0Initial
M33 months
M66 months
M0
M3
M6
FOLLOW-UP ILLUSTRATION · INDIVIDUAL OUTCOMES VARY
◍ FAQ

Frequently asked questions

◍ Consultation

Persistent knee or ankle pain that will not go away?

A dedicated consultation allows us to analyse your imaging, assess your lesion, and determine whether cartilage grafting is the right solution for your situation. Every case is unique — let us start with a meeting.