He replaced a portion of a rabbit's upper arm joint with a biomaterial scaffold, providing a place for cells to grow.

VOA: standard.2010.08.11

In order to attract the rabbit's own stem cells to re-grow the cartilage, channels in the scaffold were filled with a growth factor protein.

VOA: standard.2010.08.11

When the mechanical properties of this new cartilage were tested, they showed that the regenerated cells were just as effective as the rabbit's naturally formed cartilage.

VOA: standard.2010.08.11