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mFat therapy delivers your own adipose-derived stem cells directly into the ankle joint to target inflammation, support cartilage preservation, and improve function. The ankle is a weight-bearing joint with a small cartilage surface, making it particularly susceptible to the effects of even limited cartilage damage. Biological treatment with mFat offers a way to manage degeneration and reduce pain without the permanence of fusion or replacement surgery.
Reviewed byProf Paul Lee MBBch, FRCS (Tr & Orth), PhDLast reviewed 1 May 2026
The ankle joint bears the full weight of the body through a cartilage surface roughly one third the size of the knee. This concentrated loading means that cartilage loss progresses quickly once it begins, and surgical options narrow as degeneration advances.
mFat provides a concentrated source of regenerative cells that modulate the inflammatory environment within the ankle, creating conditions that favour tissue preservation rather than continued degeneration.
Treatment is completed in a single outpatient session. The harvested adipose tissue is processed in a closed system to preserve the regenerative cellular components before injection into the ankle joint.
At London Cartilage Clinic, mFat therapy for the ankle can be integrated with other evidence-based treatments as part of a broader management plan tailored to your joint condition and activity goals.
You may have more options than you think
At London Cartilage Clinic we follow a structured clinical framework across four areas of treatment. Before recommending a single procedure, we assess which combination of approaches gives you the best outcome.
Protect what you have. Slow degeneration and manage symptoms.
Fix specific damage. Torn tissue, unstable joints, structural problems.
Rebuild lost tissue. Biological treatments that stimulate new growth.
When other options are exhausted. Joint replacement as a last resort.
Explore the full range of treatments available for your joint. Each hub page shows every option we offer, organised by clinical approach.
mFat therapy is used for ankle osteoarthritis, talar cartilage damage, post-traumatic joint degeneration, and chronic ankle stiffness. It is particularly relevant for patients with early to moderate cartilage wear who want to delay or avoid ankle fusion or replacement.
Adipose tissue is harvested from the abdomen under local anaesthetic through a small incision. The tissue is processed to concentrate the regenerative cells and then injected into the ankle joint under ultrasound or fluoroscopic guidance to ensure accurate placement.
The ankle has a smaller cartilage surface area than the knee or hip, meaning even modest cartilage damage can have a significant impact on function. Surgical options for the ankle are more limited, making biological treatments that support the existing cartilage particularly valuable.
Many patients begin to notice improvement in pain and stiffness from two to eight weeks after treatment. The biological response develops gradually as the regenerative cells modulate inflammation and support tissue repair within the joint.
Yes. mFat can be used alongside PRP, hyaluronic acid, or as an adjunct to arthroscopic procedures. Your specialist will advise whether a combined approach would benefit your specific condition.
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Clinical updates, cartilage treatment guidance, and recovery-focused articles from our specialist team.
Liquid cartilage is an image-guided injectable collagen scaffold for carefully selected focal cartilage defects, not established osteoarthritis. Its role is to support joint preservation in the hip, knee and ankle while keeping microfracture, MACI and eventually fusion or replacement as the main options for advanced disease.
PRP knee injections tend to improve pain and function over 1–6 months rather than days, while ankle MFAT or Lipogems injections have only case-level evidence and suit mainly organised joints without major malalignment, collapse or unstable cartilage defects.
Night-time hip ache after load, an ankle that flares after sprains, and early knee osteoarthritis are usually mechanical problems rather than signs of cancer. Fewer than 20% of early knees worsen over 2–5 years, symptomatic primary ankle osteoarthritis is uncommon, and hip scans need clinical context because labral tears often appear in pain-free people.
