Abstract：Objective To study the clinical therapeutic efficacy of Wormald with drainage tube for chronic frontal lesion. Methods Patients were divided into group A (treatment group) and group B(control group). Wormald with drainage tube was used in 32 patients in group A whereas,frontal sinustomy was used in 32 patients in group B. Sinus CT reconstruction was necessary before operation. Results Follow-up for 6 months showed that 42 sides(82% )were cured, 7 sides improved and 2 sides failed in group A whereas 35 sides(70% )were cured, 8 sides improved and 7 sides failed in group B. There was statistically significant difference between the two groups. Conclusions Modified Wormald with drainage tube for the chronic frontal lesion has significant effect.
2014, Vol. 25 
