Radiological Results after 1 year of follow up.
| Isthmic Spondylolisthesis (No. levels (%)) | Degenerative Spondylolisthesis (No. levels (%)) | Total (No. levels (%)) | |
|---|---|---|---|
| PLIF (Brantigan et al 11) | |||
| Level 5 | 15/15 (100%) | 21/23 (91.3%) | 36/38 (94.7%) |
| Level 4 | 0/15 (0%) | 2/23 (8.7%) | 2/38 (5.3%) |
| Level 3 | 0/15 (0%) | 0/23 (0%) | 0 (0%) |
| Level 2 | 0/15 (0%) | 0/23 (0%) | 0 (0%) |
| Level 1 | 0/15 (0%) | 0/23 (0%) | 0 (0%) |
| IPLF (Lenke et al 12) | |||
| Grade A | 14/15 (93.3%) | 20/23 (87%) | 34/38 (89.4%) |
| Grade B | 1/15 (6.7%) | 3/23 (13%) | 4/38 (10.6%) |
| Grade C | 0/15 (0%) | 0/23 (0%) | 0 (0%) |
| Grade D | 0/15 (0%) | 0/23 (0%) | 0 (0%) |