Comparison of Radiographic Reconstruction and Clinical Improvement between Artificial Cervical Disc Replacement and Anterior Cervical Discectomy and Fusion

Table 2

Age and postoperative ROM outcome^a.

Age	ACDR		ACDF
	N	Postoperative ROM	N	Postoperative ROM
≤45	24	10.31 ± 3.499	23	7.282 ± 3.189
≥46	23	8.293 ± 2.573	24	6.590 ± 3.673
value	0.0274^b		0.5210

^aValues are presented as mean ± standard deviation. ^bSignificant difference between the age ≤45 group and age ≥46 group. Abbreviations: ROM, range of motion.