[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 6

JOA score improvement rate.

Time	Anterior group (n = 34)	Posterior group (n = 22)
Preoperative	79.4 ± 8.7	60.4 ± 7.8
6 months after the surgery	63.8 ± 6.6	57.5 ± 7.1
t	9.426	3.004
	0.021	0.042