Before revision: In bone surgery, a corticotomy is a cutting of the bone that may or may not split it into two pieces (bone fracture) but involves cortex only , leaving intact the medullary vessels and periosteum.
After revision: In bone surgery, a corticotomy is a cutting of the bone that may or may not split it into two pieces (bone fracture) but involves only the cortex , leaving intact the medullary vessels and periosteum.