Growing your own bones: Columbia University researchers perfecting DIY replacements

Growing your own bones: Columbia University researchers perfecting DIY replacements: "In just a few years, you might be able to grow your own replacement bones from stem cells.Using pieces of human or animal bone as scaffolds, a Columbia University team has grown more than 50 healthy bones from stem cells -- the largest approximately 2.5 inches long. Among other specimens, the researchers produced a cheek bone, a small part of a femur bone, and a complex temporomandibular joint (TMJ), which is located in front of each ear and allows for chewing, speaking and smiling."