BMAC sounds complicated. Bone marrow aspirate concentrate. But the idea is simple — your own stem cells, taken from your hip bone, concentrated, and injected into your damaged joint to stimulate repair. This guide explains it in plain language.
Causes and what is happening inside your body
Bone marrow contains mesenchymal stem cells — cells that can differentiate into cartilage, bone, and other tissues. BMAC concentrates these stem cells along with growth factors and injects them into damaged joints. Unlike PRP (which uses blood), BMAC uses bone marrow — making it more powerful for conditions with actual cartilage damage or bone problems like AVN. The stem cells can actually generate new cartilage tissue, not just reduce inflammation.
🔬 BMAC vs PRP: PRP reduces inflammation and activates healing signals. BMAC goes further — the stem cells can actually form new cartilage tissue. For significant cartilage damage, BMAC is the more powerful option.
How to recognise this condition — and when to see a doctor urgently
⚠️ See a doctor urgently if: Active joint infection — BMAC is contraindicated · Blood disorders · On anticoagulant therapy — must inform Dr. Sumit
What you can do to reduce your risk and protect yourself
Treatment options from simple home care to specialist treatment
The BMAC procedure takes 60-90 minutes. Bone marrow is aspirated from the back of the pelvis under local anaesthesia — a minor discomfort, not severe pain. The marrow is processed in the centrifuge to concentrate the stem cells. This is then injected under image guidance into the damaged joint. Patients go home the same day. Results appear gradually over 3-6 months and are sustained for 3-5 years in many studies.
💡 BMAC + Core Decompression for AVN: In early avascular necrosis of the hip, combining BMAC with core decompression can prevent femoral head collapse and potentially avoid hip replacement completely.
What I tell every patient who comes to me with this condition
"BMAC is the most powerful regenerative tool I have in my clinic. When I see a young patient with Grade 2-3 knee OA or early AVN of the hip — and I know surgery might be avoidable — BMAC gives us the best chance to achieve that. The stem cells do the healing work. We just deliver them to the right place."
— Dr. Sumit Dubewar · DABRM (USA) · Secunderabad
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