A 71-year-old female was admitted to casualty having been struck by a van while crossing a road. Examination revealed bleeding per vaginam and although she had no external injuries, palpable subcutaneous emphysema in the lower abdomen was detected. Roentgenograms con®rmed bilateral fractured ribs, a closed fracture of the right humerus, an extra capsular fracture of the right femur and a complex fracture of the pelvis with central dislocation of the left hip and bilateral superior and inferior pubic rami fractures. There was no evidence of a pneumothorax. A computerised tomographic scan (CT) scan of the patient's abdomen and pelvis, at 1 h post admission, showed extensive subcutaneous and intrapelvic emphysema (Figs. 1 and 2). Bowel perforation was suspected and an emergency laparotomy was performed after haemodynamic stabilisation. During the operation retroperitoneal and pelvic haematomas were noted but there was no evidence of bowel injury. Sigmoidoscopy was normal and a formal vaginal examination, deferred due to pain until general anaesthesia, revealed a vaginal tear in the right lateral wall measuring approx. 7 cm. This was repaired. The patient's orthopaedic injuries including the pelvic fracture were internally ®xed at a later date and she made a full recovery eventually.
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