[Retracted] Clinical Application of Evoked Potentials in the Operation of Cervical Spondylotic Myelopathy with Different Imaging

Table 1

Comparison of changes in JOA scores between the two groups (mean ± s, score).

	Case group	Control group	t	P-value
Case number	30	30
Preoperative	8.23 ± 1.52	8.58 ± 1.24	0.9773	>0.05
1 week after operation	16.25 ± 1.54	25.27 ± 1.03	10.65	<0.05
24 weeks after surgery	11.89 ± 1.63	13.28 ± 1.17	42.13	<0.05