Medical certificates in orthopedic trauma patients should be issued cautiously because of the important roles of the documents to the offenders and victims of accidents. But in real practice, we can find only a few references which can help doctors to decide the "duration of expected treatment" in trauma patients. A pamphlet issued by Korean Orthopedic Association "Guide to the medical certification in trauma patient" helped us a lot but it was published too long ago and had a few problems, so we suggests some ideas for revising the pamphlet.