Table 3.

Summary of SF-36 scores

	ACDF (n = 10)*	CDA (n = 18)*	P-value
Preoperation PCS	33.9 ± 7.7	34.3 ± 7.1	0.88
12 months	40.4 ± 8.5	43.1 ± 9.0	0.57
24 months	43.5 ± 8.5	42.4 ± 8.6	0.72
Preoperation MCS	26.7 ± 11.8	31.4 ± 9.2	0.25
12 months	47.4 ± 6.2	38.9 ± 13.6	0.07
24 months	44.3 ± 7.2	38.6 ± 12.2	0.20

^*Values given as mean ± standard deviation.