The recognised starting point
ACi and MACi
The established search terms for cell-based cartilage regeneration. Professor Lee uses them as the familiar reference point when explaining the newer non-surgical and surgical pathways.

International patients · Luxembourg
Patients from Luxembourg come to London Cartilage Clinic for cartilage and joint preservation with the full concierge experience foregrounded, from The Landmark London base to a dedicated coordinator.
Read the International Patient Guide
Reviewed byProfessor Paul Lee MBBch, FRCS (Tr & Orth), PhDCartilage and joint preservation expertiseWhy London Cartilage Clinic
Patients from Luxembourg tend to value a fully handled experience as much as the clinical outcome. The concierge and VIP pathway is foregrounded here: The Landmark London as a base, chauffeur transfers, a dedicated coordinator, and scans, consultation and treatment packaged together.
Underneath the experience is the same substance: Professor Paul Lee’s cartilage and joint-preservation expertise, with a joint-preserving option assessed before any replacement wherever suitable.
Why patients travel for treatment
Patients from Luxembourg often arrive searching for ACi or MACi because those are the best-known cartilage cell treatments. They remain important. The assessment also shows where NanoACi, the wider Nano family, the Structure-led STACi pathway, ChondroFiller or Mytocel MSK may fit more precisely.
The recognised starting point
The established search terms for cell-based cartilage regeneration. Professor Lee uses them as the familiar reference point when explaining the newer non-surgical and surgical pathways.
Non-surgical RegenRepair™
NanoACi for cartilage, NanoAMi for meniscus, NanoATi for tendon and NanoALi for ligament adapt Seed, Soil and Signal to the tissue being treated.
Surgical RegenRepair™
When alignment, stability or the damage pattern needs surgery, STACi addresses Structure before adding the Seed, Soil and Signal cartilage-regeneration biology.
Standalone or within a pathway
Mytocel MSK provides living autologous micrografts; ChondroFiller provides a collagen scaffold. Each has a standalone role and both sit within Professor Lee’s wider regenerative toolkit.
Been told replacement is your only option?
A recommendation for replacement is often a default rather than the only path. For suitable patients, joint-preserving cartilage repair and regeneration may be an alternative, depending on a full assessment of your imaging, the size and location of the damage and your goals.
The strongest case is at the knee, with hip and other joints scoped honestly and assessed case by case. It is about options, never about being faster.
Every alternative-to-replacement statement is a clinical judgement made only after a full assessment. Suitability depends on your individual case.
Most relevant treatments

The better-known cell-based cartilage regeneration procedures, kept as a clear starting point and assessed alongside NanoACi and the Structure-led STACi pathway.
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Professor Lee’s Seed, Soil, Signal framework, adapted into NanoACi for cartilage, NanoAMi for meniscus, NanoATi for tendon and NanoALi for ligament.
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A non-arthroscopic cartilage-regeneration pathway combining autologous micrografts, a collagen scaffold and platelet-rich fibrin in one image-guided session.
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Professor Lee’s surgical RegenRepair™ pathway: Structure first, then Seed, Soil and Signal for cartilage damage that needs mechanical correction or stabilisation as well as regeneration.
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Collagen cartilage regeneration delivered by injection, made by Meidrix Biomedicals GmbH. The clinic was the first in the UK to offer it as an injection.
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A single-session regenerative injection using living autologous micrografts prepared chair-side from a small sample of the patient’s own tissue.
Find out moreGetting here
Luxembourg to London is a short flight of about an hour and a quarter, with a full concierge trip arranged around it.
Luxembourg to London is about an hour and a quarter by air.
The Landmark London base, chauffeur transfers and a dedicated coordinator are arranged as one, more prominently than elsewhere.
A discovery call and virtual consultation with Professor Lee can happen before you travel.
Visiting us
66 Harley Street
London W1G 7HD
United Kingdom
A partner hospital on Weymouth Street, a few minutes from Harley Street. Imaging is arranged for you as part of your pathway.
Central London, a short walk from Regent’s Park, Oxford Circus and Bond Street underground stations.
Costs and insurance
Treatment at London Cartilage Clinic is direct pay, quoted in pounds sterling, with your bank handling the conversion from euros.
Reimbursement of overseas private treatment through the CNS or supplementary insurance varies and is not guaranteed. Where it applies it is pay-and-claim-back, using an itemised invoice. Confirm the specifics before travelling.

Authority
International patients are usually choosing between a small number of world specialists, so the surgeon matters more than any single treatment. Your consultation, your treatment and your follow-up are all with Professor Paul Lee.
International patients · Luxembourg
From the first call through recovery, the concierge covers medical records and MRI coordination, chauffeur transfers and a high-level hotel arrangement, a tailored preoperative plan and access to high-end rehabilitation. It is foregrounded for patients from Luxembourg.
Luxembourg to London is about an hour and a quarter by air. Much of the preparation happens virtually, and the concierge team arranges the trip around your treatment.
Treatment is direct pay in pounds sterling. Any CNS or supplementary reimbursement is pay-and-claim-back and varies by policy, so confirm the specifics before travelling.
Wherever you are travelling from, the first step is the same. Talk it through on a discovery call, or have a virtual consultation with Professor Lee before you plan any travel.