摘要Aderived disaster is a commonconceptin natural emergencies, such as earthquakes. In recent years, the incidence of fractures caused by high?energy trauma has increased annually with socioeconomic development in China.[1?3] Accordingly, derived injuries resulting from primary injuries have also been increasing considerably. However, most surgeons in the field of orthopedics and traumatology do not yet have adequate knowledge of such kind of derived injuries. We summarized our experience in managing a patient who experienced reinjury caused by a primary injury over the last decade and proposed the concept of a derived injury. In addition, we aimed to introduce a classification of derived injuries, explore their significance in orthopedic trauma, and discuss methods to minimize their severity.