Table 3.

Mean improvement of SF-36 scores.

	Preoperative	Postoperative	1-Month follow up	6-Month follow up	2-Year follow up
BP	15.3±4.6	45.1±9.3*	54.2±6.9*	58.4±13.0*	55.8±17.1*
PF	29.8±9.2	56.5±11.1*	58.7±12.4*	59.6±10.2*	54.3±12.8*
VT	32.1±11.7	51.2±10.1*	53.6±8.8*	58.6±12.9*	55.2±7.6*
SF	19.5±8.3	37.0±12.3*	41.2±8.9*	44.5±9.4*	43.0±8.6*

^*P<0.05 compared to preoperative value.