Cleft Palate
Common case where there's a gap between the mouth and nasal passages

Artery Reroute
An artery re-route can help supply the brain with more blood

Hip Hop
Old people are very prone to breaking their hips

Stomach Reduction
Breast cancer patients can have reconstructive surgery using the stomach

Alien Autopsy
Maybe not regular human surgery, but exposed inards none-the-less