Table 4.
Effect of lumbar 5 spondylolisthesis on the distance between BPSs and ALVs
| Group | L5 | S1 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 15 | 0 | 5 | 10 | ||||||||||||
| N | ≥ | < | N | ≥ | < | N | ≥ | < | N | ≥ | < | N | ≥ | < | ||
| Left | C | 8 (7.5%) | 18 (16.8%) | 81 (75.7%) | 5 (4.7%) | 4 (3.7%) | 98 (91.6%) | 21 (19.6%) | 62 (57.9%) | 24 (22.4%) | 18 (16.8%) | 11 (10.3%) | 78 (72.9%) | 40 (37.4%) | 11 (10.3%) | 56 (52.3%) |
| S | 10 (19.2%) | 16 (30.8%) | 26 (50%) | 9 (17.3%) | 9 (17.3%) | 34 (65.4%) | 11 (21.2%) | 31 (59.6%) | 10 (19.2%) | 10 (19.2%) | 6 (11.5%) | 36 (69.2%) | 21 (40.4%) | 5 (9.6%) | 26 (50%) | |
| P | 0.004 | 0.000 | 0.894 | 0.89 | 0.935 | |||||||||||
| Right | C | 11 (10.3%) | 17 (15.9%) | 79 (73.8%) | 15 (14%) | 4 (3.7%) | 88 (82.2%) | 20 (18.7%) | 65 (60.7%) | 22 (20.6%) | 29 (27.1%) | 46 (43%) | 32 (29.9%) | 87 (81.3%) | 1 (0.9%) | 19 (17.8%) |
| S | 12 (23.1%) | 16 (30.8%) | 24 (46.2%) | 17 (32.7%) | 8 (15.4%) | 27 (51.9%) | 11 (21.2%) | 30 (57.7%) | 11 (21.2%) | 14 (26.9%) | 24 (46.2%) | 14 (26.9%) | 41 (78.8%) | 0 | 11 (21.2%) | |
| P | 0.003 | 0.000 | 0.919 | 0.91 | 0.777 | |||||||||||
Note: C Control group, S Spondylolisthesis group; N, ≥ and < represented non-contact, distant and close ALV respectively