Table 1.
Demographics, clinical characteristics, and neuroradiological and MEP results of enrolled patients
| Demographic characteristics | All patient | Good recovery | Fair recovery | p value |
|---|---|---|---|---|
| Gender N. of patients (%) | 46 M, (60.5%) 30 F, (39.5%) |
18 M, (60%) 12 F, (40%) |
28 M, (60.9%) 18 F, (39.1%) | 0.940 |
|
Age (years) Median [IQR] |
65.5 [57–71] | 67 [63–68] | 60 [54–71] | 0.180 |
|
Duration of symptoms (months) Median [IQR] |
11 [8–13] | 8.5 [7–13] | 12 [9–13] | 0.068 |
|
Preoperative mJOA score Median [IQR] |
10 [9–12] | 10 [8–10] | 11 [9–12] | 0.025 |
|
Postoperative mJOA score Median [IQR] |
16 [14–17] | 16 [15–17] | 14 [13–16] | 0.002 |
| MRI features | ||||
| Preoperative length of MRI lesion (mm) Median [IQR] | 12 [6–16] | 6 [3–9] | 12 [12–16] | <0.001 |
| Neurological signs | ||||
| Babinski’s sign, N. of patients, (%) | 46 (60.5%) | 13 (43.3%) | 33 (71.7%) | 0.013 |
| MEP Pre-surgery | ||||
|
CMCT (ms) Median [IQR] |
||||
|
Biceps (n.v. 7.6) |
6.4 [5.6–6.9] | 6.5 [5.7–7.6] | 6.3 [5.6–6.7] | 0.093 |
|
Abductor digiti minimi (n.v. 7.7) |
11.6 [9.4–13.8] | 12.2 [10.3–14.4] | 10.8 [8.8–13.8] | 0.089 |
|
Tibialis anterior (n.v. 17.1) |
22.6 [19.9–24.8] | 23.4 [21.2–25.5] | 21.6 [18.2–23.9] | 0.079 |
| MEP Post-surgery | ||||
|
Biceps (n.v. 7.6) |
6.4 [5.8–6.8] | 6.3 [5.8–6.6] | 6.4 [5.8–6.8] | 0.360 |
|
Abductor digiti minimi (n.v. 7.7) |
11.6 [9.7–13.2] | 11.6 [9.7–13.1] | 11.4 [9.3–14.6] | 0.734 |
|
Tibialis anterior (n.v. 17.1) |
21.4 [18.9–24] | 21.9 [19.7–24] | 20.8 [18.8–23.2] | 0.372 |
CMCT, central motor conduction time; ms, milliseconds; mm, millimeters; mJOA, modified Japanese Orthopedic Association; n.v., normal value