Zero-profile implant (Zero-p) versus plate cage benezech implant (PCB) in the treatment of single-level cervical spondylotic myelopathy

Table 1 Preoperative patient data and operated levels in the two groups

Group	Age (years)	Sex (male/female)		Operated level
Group	Age (years)	Male	Female	C3-4	C4-5	C5-6	C6-7
Zero-p group	51.6 ± 11.3	12	15	2	8	9	8
PCB group	54.0 ± 8.5	12	18	3	7	12	8
Statistical value	T = 0.924	χ² = 0.115		χ² = 0.540
P value	0.36	0.734		0.910

ISSN: 1471-2474