Results: The antrums were cured in 77 cases, shallowed by 75% in 18 cases, by 25% in 5 cases and by less than 25% in 3 cases;the hospitalization period was 58.6 days on average.

• 结果:77例窦道完全愈合,18例窦道深度变浅75%25以上,5例窦道深度变浅25%25以上,3例窦道深度变浅不足25%25,平均住院天数为586天。