Table 5. The effect of the use of an orthopedic pillow for preoperative-postoperative VAS scores.

*p was obtained from the Student t-test or Mann-Whitney U test.

VAS: visual analog scale.

	Orthopedic pillow
	Yes (n: 27)	No (n: 45)	P
Preoperative VAS (mean±SD)	6.74 ± 1,13	7.71 ± 0.84	<0.001*
Postoperative VAS (mean±SD)	1.96 ± 1.42	4.13 ± 1.84	<0.001*