Autologous adipose derived stem cells(Centre Hospitalier Universitaire de Montpellier)

Primary:
To study the safety of a single injection of autologous adipose derived mesenchymal stromal cells (ASCs) on patients with moderate or severe osteoarthritis of the knee (OA).
Secondary:
To study the efficacy of a single injection of autologous adipose derived mesenchymal stromal cells on patients with moderate or severe osteoarthritis of the knee (OA).