Stem Cell Therapy for Knees: The 2026 Clinical Guide

What is stem cell therapy for knees?

Stem cell therapy for knees uses concentrated regenerative cells — typically from bone marrow, adipose tissue, or umbilical-cord derived sources — injected into the knee joint to reduce inflammation, modulate the local immune response, and stimulate cartilage and soft tissue repair. Unlike cortisone, which only masks pain, stem cell injections aim to change the biology of the joint.

How knee stem cell injections work

The cells release growth factors and exosomes that signal resident cells in the cartilage, meniscus and synovium to repair micro-damage. Combined with imaging-guided placement and a structured rehab protocol, most patients feel meaningful improvement between 6 and 12 weeks after the procedure.

Who is a candidate?

• Mild to moderate knee osteoarthritis (Kellgren-Lawrence 1–3).
• Meniscal degeneration without mechanical locking.
• Chronic patellar tendinopathy or chondral defects.
• Patients who want to delay or avoid knee replacement.

Bone-on-bone (grade 4) cases can still benefit symptomatically, but expectations must be set realistically — the goal becomes function and pain reduction, not full cartilage regeneration.

Does stem cell therapy work for knees?

Published studies and our own clinical outcomes show 60–85% of properly selected patients report significant pain reduction and improved function at 12 months. Results depend on cell source, dosage, joint condition and rehab adherence.

How long does it last?

Benefits typically last 18–36 months. Many patients extend results with maintenance protocols combining peptides, exosomes, and targeted physical therapy.

How much does it cost?

In the US, knee stem cell therapy ranges from USD $5,000 to $12,000 per knee. International patients traveling to Dr. Joaqui's clinic in Colombia access the same advanced protocols at a significantly lower cost — often combined with a structured longevity evaluation.

Is it covered by insurance?

Most US insurance plans and Medicare currently do not cover stem cell therapy for knees, as it is still classified as investigational for orthopedic indications. This is changing rapidly as more evidence accumulates.

Next step

If you're tired of cortisone shots and worried about a knee replacement, a regenerative evaluation may be the right move. Dr. Joaqui's team reviews your imaging, history and goals before recommending a personalized protocol.