Table 4 The postoperative SNOT-22 and modified Lund-Kennedy endoscopic scores in the follow up-visits

1 month

Mean ± SD

Mean ± SD

 Microdebrider

18.9 ± 4.2

27 ± 6

 Conventional

19.8 ± 5

29.9 ± 5.2

 P-value

0.11

0.01

6 months

 Microdebrider

10.2 ± 2.6

20.6 ± 4.5

 Conventional

11.4 ± 2.6

21.1 ± 6.8

 P-value

0.004

0.78

1 year

 Microdebrider

5.7 ± 3.5

12.4 ± 6.9

 Conventional

7.3 ± 3.6

13.5 ± 8.6

 P-value

0.002

0.23