[Retracted] Clinical Efficacy and Safety of Anterior Cervical Decompression versus Segmental Fusion and Posterior Expansive Canal Plasty in the Treatment of Multilevel Cervical Spondylotic Myelopathy

Table 2

Analysis and comparison of imaging characteristics in different periods.

Time	Anterior group (n = 34)		Posterior group (n = 22)
	Vertebral column height (mm)	Curvature of the cervical spine	Vertebral column height (mm)	Curvature of the cervical spine
Preoperative	71.2 ± 1.3	23.4 ± 7.8	70.2 ± 5.2	24.3 ± 7.8
2 weeks after surgery	73.4 ± 2.5	19.5 ± 7.8	71.4 ± 3.9	24.6 ± 6.8
Last follow-up	72.1 ± 4.2	21.4 ± 8.2	69.6 ± 3.9	25.3 ± 6.6