[Retracted] Electrophysiological Characteristics of Cervical Spinal Stenosis

Table 3

Comparison of detection results of SEP examination.

Items	Group A (MRI grade 1, )	Group B (MRI grade 2, )	Group C (MRI grade 3, )
Median never of both upper limbs	6	8	13	6.139	0.046
Tibial nerve of both lower limbs	6	10	16	12.750	0.002
SEP (n, positive cases)	12	18	29	7.559	0.023