Repair cartilage potentially can heal horribly broken bones

Hundreds of NFL players have invested in using stem cells to treat injuries, a new article reports. The publication revealed one NFL linebacker ‘paid $6,000 a pop for a 1-milliliter vial of donated placenta tissue containing stem cells to be injected into each of his beat-up knees.’ Now new research shows that stem cells could one day be stimulated to make a special type of cartilage to help repair large, hard-to-heal bone fractures.