The early postoperative mortality rate was 2/52 (3, 8%), the cereborospinal (CSF) leakage was observed in 4/52 (7, 6%) patients, menigitis was occurred in 3/52 (5, 7%).
Biến chứng tử vong 2/52 (3,8%), rò dịch não tuỷ 4/52 (7,6%), viêm màng não 3/52 (5,7%).