Impact of Mesenchymal Stem Cells in Knee Osteoarthritis

Bone marrow will be harvested from each individual patient's iliac crest, followed by stem cell isolation, expansion and preparation. Stem cell will be injected approximately 3-4 weeks after bone marrow harvest, injecting 50x10\^6 MSCs in the knee via a medial parapatellar approach under sterile technique in 8 patients with generalized knee OA or focal chondral defects.