Clinical and radiological outcomes of dynamic cervical implant arthroplasty: A 5-year follow-up

Table 2 Summary of SF-36 subscores preoperatively and at five follow-up intervals

	Preop	1-mo	6-mo	12-mo	24-mo	60-mo
Physical function	54.1 ± 22.0	74.3 ± 21.2a	77.5 ± 18.4a	85.0 ± 24.2a	84.4 ± 20.1a	83.3 ± 22.1a
Role-physical	47.5 ± 18.2	60.5 ± 20.3a	66.3 ± 19.9a	64.1 ± 21.0a	64.8 ± 17.4a	65.2 ± 18.4a
Bodily pain	38.5 ± 12.6	70.0 ± 19.8a	72.5 ± 21.3a	67.5 ± 18.2a	68.3 ± 16.4a	67.3 ± 19.7a
General health	41.1 ± 14.2	66.6 ± 18.4a	72.5 ± 21.4a	70.8 ± 15.1a	69.3 ± 22.5a	68.3 ± 23.4a
Vitality	48.1 ± 19.3	68.6 ± 22.9a	80.0 ± 16.3a	67.5 ± 23.6a	72.4 ± 21.4a	70.4 ± 22.5a
Social function	58.4 ± 21.0	77.1 ± 26.7a	75.2 ± 19.8a	81.3 ± 24.3a	80.2 ± 20.7a	81.2 ± 23.7a
Role-emotional	37.2 ± 12.9	71.4 ± 14.3a	73.5 ± 24.6a	83.3 ± 23.1a	79.3 ± 18.7a	78.3 ± 15.7a
Mental health	61.8 ± 18.6	75.1 ± 22.3a	78.0 ± 19.4a	82.2 ± 23.6a	83.5 ± 19.2a	84.5 ± 20.1a

^aP < 0.05, compared with preoperative value.