The severity of avulsion fracture, as well as the fact that after the fracture heals, there are no serious sequelae such as dysfunction of limb movement, so the grades are not too high. If it is a localized avulsion fracture, there is no obvious displacement, and it can be healed by splinting or plaster fixation, at most it can be rated to grade 12 or so. If the avulsion fracture, displacement is very obvious, must be surgically cut, so that the fracture end of the reset with Kirschner’s pin or screw fixation, can be assessed to the 10th grade or 11th grade, so the avulsion fracture can be assessed the level of disability must be based on the severity of the injury, as well as the treatment method.