Cervical sagittal balance after consecutive three-level hybrid surgery versus anterior cervical discectomy and fusion: radiological results from a single-center experience

Table 6 Summary of the patient complications

	Type I	Type II	ACDF	p value
N	47	26	33
ASD	15	7	14	0.424^a
Imbalance	14	6	12	0.542^a
Prosthesis subsidence	8	6		0.750^b
HO	19	15		0.157^b

ACDF anterior cervical discectomy and fusion, ASD adjacent segment degeneration, HO heterotopic ossification
^aChi-square test for the three groups
^bChi-square test for the two groups

ISSN: 1749-799X