Stem Cells: Alternative to Knee Replacement?

Last year, Patricia Beals was told she'd need a double knee replacement to repair her severely arthritic knees or she'd probably spend the rest of her life in a wheelchair. Hoping to avoid surgery, Beals, 72, opted instead for an experimental treatment that involved harvesting bone marrow stem cells from her hip, concentrating the cells in a centrifuge and injecting them back into her damaged joints. "Almost from the moment I got up from the table, I was able to throw away my cane," Beals...Full Story