Background : Virtual reality (VR) has potential for effective learning in medical education. Objective : The objective of this study was to explore the demands and challenges of VR education in trauma care. Methods : On the 30th of June 2022, a seminar on the use of VR was held during the 36th annual meeting of the Japanese Association for the Surgery of Trauma, and this was followed by a questionnaire survey. The participants were doctors. Analysis was performed by facility affiliation and age group. Results : In total, we included 102 participants, of which 79 had valid responses. The demand for content focusing on therapeutic procedures, such as surgery and intervention radiology, accounted for 40.5% (32/79) of the responses. Meanwhile, the demand from university hospital workers accounted for 26.7% (8/30) of the responses. When asked about their availability for editing VR contents, approximately 60% of the respondents stated that they have no time or less than 2 hours to perform the task per week. Conclusion : Despite the high demand for VR content focusing on therapeutic procedures, needs differed at each facility. Expectations for VR education in trauma care were high ; however, securing the time to edit VR content was a challenge.

　　Traumatic avulsion of the gallbladder refers to tearing of the gallbladder from its fossa in the hepatic bed. It is often surgically treated ; however, there have been reports of non-operative management. We present a case of avulsion that was treated conservatively, which worsened after a fall and required emergency surgery. A 42-year-old man with alcoholic liver cirrhosis fell down the stairs and was consequently admitted to our hospital. He was diagnosed with traumatic gallbladder injury (avulsion and contusion) and conservatively treated. His condition was stable, but on the 11th day of hospitalization, he experienced shock due to a fall. A ruptured gallbladder was diagnosed, and he underwent emergency laparotomy. The area of gallbladder that had detached from the liver bed was heavily perforated. It is important to keep in mind that patients who are getting better must be monitored closely, as even minor trauma may aggravate avulsion.

　　Type Ia liver injury is often treated conservatively with few complications. We encountered a case of hepatic compartment syndrome due to an acute increase of the hepatic subcapsular hematoma after conservative treatment. A 21-year-old man was injured when hit by moving car. Computed tomography (CT) on admission revealed a type Ia liver injury in the right lobe of the liver and conservative treatment was performed. Subsequently, the patient complained of right upper abdominal pain. CT was repeated, revealing an acute increase of the hepatic subcapsular hematoma. Therefore, vascular embolization was performed. The condition was diagnosed as hepatic compartment syndrome due to hepatic subcapsular hematoma. The patient was discharged without complications. This case shows that even mild liver injury can lead to rapid subcapsular hematoma formation ; hence, careful observation of such cases is warranted.