“…However, sternal fractures can occur due to relatively minor trauma such as sports injury or playground fall 13 . A retrospective cohort study found that the common concurrent injuries with sternal fracture were extremity fracture (80%), traumatic brain injury (71%), abdominal injury (52%), pulmonary contusion (47%), and rib fracture (38%), with blunt cardiac injury or cardiac tamponade being rare at 0% and 3%, respectively 3 . Another retrospective study reported the rates of pneumothorax, rib fractures, and blunt abdominal injuries at 34.8%, 42.8%, and 27.8%, respectively 4 .…”