A method of cutting a bone (2) comprises the steps of: preparing the bone (2) in order to be accessible to an osteotomic instrument； predefining an osteotomic geometry on the bone (2)； and applying the osteotomic instrument to the bone (2) thereby cutting the bone (2) along the osteotomic geometry and generating a cut surface (21) to the bone (2). The method further comprises delivering a laser beam to the cut surface (21) of the bone (2) such that the cut surface (21) of the bone (2) is ablated. The method according to the invention allows to improve healing of a bone at its cut surface after being cut by the osteotomic instrument.
