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 · Bahrain
Patients from Bahrain travel for ACi and MACi assessment, NanoACi and the Nano family, Structure-led STACi, ChondroFiller and Mytocel MSK with Professor Paul Lee.
Read the International Patient Guide
Reviewed byProfessor Paul Lee MBBch, FRCS (Tr & Orth), PhDCartilage and joint preservation expertiseWhy London Cartilage Clinic
Bahrain has a direct relationship with London and a long history within UK private healthcare. The value of London Cartilage Clinic is focus: one cartilage and joint-preservation specialist reviews the diagnosis, the established ACi and MACi routes and the newer regenerative alternatives.
Those newer options include the non-surgical Nano pathways, Structure-led STACi for surgically addressable damage, injectable ChondroFiller and Mytocel MSK autologous micrografts. The treatment decision remains tied to the tissue, mechanics and evidence rather than geography or prestige.
Searching for “علاج إصابات الركبة في لندن”?That is us, knee injury treatment in London.
Why patients travel for treatment
Patients from Bahrain 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?
The assessment asks whether the joint can still be preserved and what would have to change mechanically and biologically to make that credible. Some joints are suitable for injection-only treatment; others require surgical correction; some are already better served by replacement.
NanoACi and STACi make that dividing line clearer. Professor Lee will explain why a non-arthroscopic, surgical regenerative or replacement pathway is recommended for the individual case.
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
Bahrain has direct London services and short regional connections. Virtual review comes first, followed by one coordinated visit where clinically appropriate.
Direct services connect Bahrain with London, with journey times around seven hours depending on the current schedule.
A discovery call, uploaded scans and a virtual consultation reduce unnecessary travel and define the purpose of the visit.
The early review and return-flight plan are matched to mobility, procedure and individual risk.
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 is priced in pounds sterling. The patient’s bank handles conversion from Bahraini dinars, and a case-specific estimate is supplied after the clinical plan is agreed.
Insurance or sponsored care is only treated as approved when written payment arrangements have been accepted. Without that, the pathway is direct pay and the clinic supplies the documentation needed for a reimbursement request.

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 · Bahrain
The assessment can cover ACi, MACi, NanoACi, the broader Nano family, STACi, ChondroFiller and Mytocel MSK. Professor Lee narrows that list according to the joint, tissue, imaging and mechanics.
Often, yes, because discovery, records review and a virtual consultation happen first. Whether treatment can occur in the same visit depends on the diagnosis, required imaging, procedure and consent process.
Yes. The team supplies a staged rehabilitation plan and can coordinate with the patient’s local physiotherapist, while Professor Lee reviews later progress remotely where appropriate.
No. Cover depends on the individual insurer or sponsor. Obtain written authorisation before booking; otherwise treatment is direct pay.
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.