Table 2.
Number (percentage) of patients with and without residual symptoms in the lower extremities
| Leg pain/numbness | Gait disturbance | ||||||
|---|---|---|---|---|---|---|---|
| (+) | (–) | P value | (+) | (–) | P value | ||
| n = 27 | n = 62 | n = 13 | n = 76 | ||||
| Mean age (years) | 72.0 | 68.1 | 0.10 | 64.6 | 69.1 | 0.10 | |
| Gender | Male | 17 (30.4) | 39 (69.6) | 0.26 | 10 (17.9) | 46 (82.1) | 0.26 |
| Female | 10 (30.3) | 23 (69.7) | 3 (9.0) | 30 (91.0) | |||
| Resting numbness | (+) | 26 (65.0) | 14 (35.0) | 0.03* | 9 (22.5) | 31 (77.5) | 0.02* |
| (–) | 1 (2.0) | 48 (98.0) | 4 (8.2) | 45 (91.8) | |||
| Drop foot | (+) | 4 (44.4) | 5 (55.6) | 0.33 | 5 (55.6) | 4 (44.4) | 0.0002* |
| (–) | 23 (28.8) | 57 (61.2) | 8 (10.0) | 72 (90.0) | |||
| Cauda equina syndrome | (+) | 23 (34.8) | 43 (65.2) | 0.11 | 9 (13.6) | 57 (86.4) | 0.66 |
| (–) | 4 (17.4) | 19 (82.6) | 4 (17.4) | 19 (82.6) | |||
| Degenerative spinal deformity | (+) | 17 (36.2) | 30 (63.8) | 0.60 | 7 (14.9) | 40 (55.1) | 0.60 |
| (–) | 10 (23.8) | 32 (76.2) | 6 (14.3) | 36 (55.7) | |||
| Complete filling defect | (+) | 21 (37.5) | 35 (62.5) | 0.06 | 8 (14.3) | 48 (85.7) | 0.91 |
| (–) | 6 (18.2) | 27 (81.8) | 5 (15.2) | 28 (84.8) | |||
| Number of decompressed levels | 1 | 11 (22.0) | 39 (78.0) | 0.05 | 4 (8.0) | 46 (92.0) | 0.05 |
| ≥2 | 16 (41.0) | 23 (59.0) | 9 (23.1) | 30 (76.9) | |||
P value was determined by the chi-square test