What is the onset mechanism of internal hernia after vertebral body fracture? A case of internal hernia secondary to traumatic vertebral fracture.

A 67-year-old man who had been pinned between a basket crane and a tree complained of severe pain in his lower back and a decreased appetite. Laparotomy after decompressing the gastrointestinal tract revealed incarceration of an ileal loop within a fractured third lumbar vertebra. The damaged bowel was resected, and an end-to-end anastomosis was performed. Once the patient's condition had stabilised, posterior lumbar fixation was performed. There were no abdominal complications or lower limb neurological deficits during the follow-up period. Enhanced CT and MRI had been helpful in making the diagnoses. Histopathological examination revealed the aetiology of the traumatic incarceration: the intestine had been pinched as the disc space closed, and the body attempted to return to its original state by exerting countertraction.