Speed and quality of interbody fusion in porous bioceramic Al2O3 and polyetheretherketone cages for anterior cervical discectomy and fusion: a comparative study

Table 2 Patient population

Study group	Al₂O₃	PEEK	p value
Study group	(N = 68)	(N = 35)	p value
Age in years, median (range)	46 (26–79)	49 (29–73)	0.707
Sex, n (%)			0.149
Male	36 (52.9%)	13 (37.1%)
Female	32 (47.1%)	22 (62.9%)
Surgery level, n (%)			0.700
C4–C5	12 (17.5%)	3 (8.5%)
C5–C6	34 (50.0%)	22 (63.0%)
C6–C7	21 (31.0%)	10 (28.5%)
C7–Th1	1 (1.5%)	0.0 (0%)

ISSN: 1749-799X