Cute kitty.

The leg reminds me of a patient we had last winter. The cat had gotten caught in the fan belt or something under the guys car. It had pulled the skin off the leg and the bone potruded out very similar to what your pix shows. With that patient the dr amputated the bone a bit higher up and pulled some skin as a flap of padding over it. Dr said he didn't like amputation where there wasn't a joint but any shorter and the cat would have lost the entire leg. Cat seemed to have gotten around quite fine using the boney stub before surgery. Poor thing would go 'bump bump' when it walked on the bone though. Cat recovered find and is getting around nicely now.

Here's a pix of it after surgery. It was getting all playful and I was petting it trying to get it to settle down, so it gave me lots of head butts. lol