An osteotomy is a surgical operation whereby a bone is cut to shorten, lengthen, or change its alignment. It is sometimes performed to correct a hallux valgus, or to straighten a bone that has healed crookedly following a fracture. It is also used to correct a coxa vara, genu valgum, and genu varum. The operation is done under a general anaesthetic. Osteotomy is one method to relieve pain in arthritis, especially of the hip and knee. It is being replaced by joint replacement in the older patient. Due to the serious nature of this procedure, recovery may be extensive...