A way to make titanium better and AWESOMER!

Well basically what is being done is instead of simply putting solid titanium into the human body as a replacement, what they do is make a lattice out the titanium so that it creates a porous structure. This porous structure is less dense and acts more like actual bones. Another bonus is that it allows the bones to regrow into and around the structure, integrating it into the body and putting us one step closer to making people as awesome as Wolverine.

It is currently not approved for humans though.

For a more detailed definition of how the titanium lattice is created, follow the links

Link
A more laid back link