The present invention provides a method and a system for treating a bone. The method includes obtaining a bone model representing a bone which is a subject of treatment； obtaining a target bone model to which treatment aims； determining a treatment process (e.g., a necessary assisting member) which is to be performed on the bone based on the bone model and the target bone model； and performing a surgical operation using the determined treatment process. The present invention provides a computer program for performing such a method.
