BMAC (Bone Marrow Aspirate Concentrate) injection is an advanced regenerative therapy offered at the London Cartilage Clinic. This cutting-edge treatment utilizes the healing properties of the patient's own bone marrow cells to treat various knee conditions, including osteoarthritis, sports injuries, and cartilage damage. BMAC injections are minimally invasive and provide a promising alternative to more extensive knee surgeries.
Reviewed byProf Paul Lee MBBch, FRCS (Tr & Orth), PhDLast reviewed 1 May 2026
How BMAC injection works
from marrow to treatment site
BMAC therapy uses your own bone marrow aspirate, concentrated to increase the cellular and growth-factor components delivered to the affected area.
- Bone marrow is aspirated under sterile, controlled conditions.
- The sample is processed to concentrate regenerative components.
- Prepared BMAC is injected with targeted image guidance.
This approach aims to reduce inflammation, improve function, and support tissue repair while avoiding more invasive surgery in selected cases.
Why choose BMAC
for knee pain management
BMAC is often selected for patients seeking a biologic, minimally invasive option for degenerative or sports-related knee conditions.
- Potential improvement in pain, mobility, and activity tolerance.
- Lower procedural burden than major reconstructive surgery.
- Can be incorporated into a wider rehabilitation and injection pathway.
At London Cartilage Clinic, BMAC protocols are specialist-led and individualised to your pathology, imaging findings, and recovery goals.
You may have more options than you think
Most patients have more treatment options than they have been told
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.
Preserve
Protect what you have. Slow degeneration and manage symptoms.
Repair
Fix specific damage. Torn tissue, unstable joints, structural problems.
Regenerate
Rebuild lost tissue. Biological treatments that stimulate new growth.
Replace
When other options are exhausted. Joint replacement as a last resort.
This treatment can be applied across multiple joints. Select yours to see the full range of options we offer, organised by clinical approach.
Explore All Treatment Options
Frequently Asked Questions
What Conditions Can BMAC Injection Treat?
BMAC injections are effective in treating a range of knee conditions, including osteoarthritis, sports-related injuries, and cartilage degeneration.
Is the BMAC Injection Procedure Painful?
Patients typically experience minimal discomfort during the BMAC injection procedure. Local anesthesia is used to ensure patient comfort.
How Long Does It Take to See Results After a BMAC Injection?
Results can vary, but many patients report improvement in pain and mobility within a few weeks of the treatment. The full benefits of the injection may continue to develop over several months.
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