OBJECTIVETo investigate the clinical features and treatment strategy of dissymmetric bilateral frontal contusion, and to summarize our experience in treating these patients by minimally invasive surgery.

METHODSOver the past 3 years, we have treated a total of 31 patients with dissymmetric bilateral frontal contusion using endoscopy-assisted unilateral cerebral falx incision. Other 30 patients treated by routine bilateral approaches within the same period were taken as control.

RESULTSSeventeen cases (54.8%) in the unilateral operation group survived and were in good condition, 8 (25.8%) had moderate disability, 4 (12.9%) had severe disability, 1 (3.2%) was in vegetative state, and 1 (3.2%) died. Compared with the control group, the Glasgow Outcome Scale score was not significantly different in the unilateral operation group, but the operation time, blood transfusion volume, the length of hospital stay, the incidences of mental disorder and olfactory nerve injury were greatly reduced in the unilateral operation group.

CONCLUSIONSEndoscopy-assisted unilateral cerebral falx incision can shorten the operation time, reduce surgical trauma and complications in treatment of patients with dissymmetric bilateral frontal contusion. It can obviously diminish the chance of delayed intracerebral hematoma and subsequently minimize the incidences of subfalcial and centrencephalic herniation.