In a recent controlled study, adipose-derived stem cells were used to treat knee osteoarthritis. After 2 years, almost all patients showed significant improvement of all studied clinical outcomes. In the same study, researchers evaluated elderly patients with worsening arthritis. Of those studied, 88% had improved or maintained cartilage status at the 2-year follow-up.
In a controlled study comparing stem cell injections after arthroscopy with standard arthroscopy alone, researchers found that the quality of life improved form patients treated with stem cells. The study participants had knee arthritis, and were evaluated with the visual analogue scale and an osteoarthritis outcome score. In yet another study, researchers injected patients with adipose stem cells and evaluated their pain and return to activities. According to patients’ reports on outcome evaluation tools, pain decreased significantly, and functional status improved.