What is the definition or description of: osteotomy?

Bone realignment: Osteotomy involves the surgical cutting of a bone, followed by realignment in a way to change the alignment of the bone. This can be done for fractures healed in a crooked manner, bone and joint development abnormalities, and to relieve pressure and pain in arthritic joints. The osteotomy site is usually fixed with some type of hardware to hold the site together while it heals.

Realigning.: The definition is cutting and realigning bone. There are many types of osteotomies, depending on what one needs.