Table 1.
Descriptive profiles of patients and pathology.
| Isthmic Spondylolisthesis2 | Degenerative Spondylolisthesis2 | Total | |
|---|---|---|---|
| A) Patient | |||
| Age (years) | |||
| Mean | 44.1 | 64.2 | 57.1 |
| Median | 46 | 68 | 56.5 |
| Range | 30 – 75 | 40 – 82 | 30 – 82 |
| Gender (No. patients (%)) | |||
| Men | 9 (25 %) | 5 (13.9 %) | 14 (38.9 %) |
| Women | 6 (16.6 %) | 16 (44.5 %) | 22 (61.1 %) |
| Sintomatology (No. patients (%)) | |||
| None | 0 (0 %) | 0 (0 %) | 0 (0 %) |
| Back Pain | 0 (0 %) | 0 (0 %) | 0 (0 %) |
| Sciatica | 1 (2.7 %) | 5 (13.9 %) | 6 (16.6 %) |
| Neurogenic Claudication | 0 (0 %) | 0 (0 %) | 0 (0 %) |
| Back pain & Sciatica | 6 (16.6 %) | 8 (22.1 %) | 14 (38.8 %) |
| Back pain & Sciatica & N.Claudication | 9 (25%) | 7 (19.4) | 16 (44.4 %) |
| Signs(No. patients (%)) | |||
| None | 4 (11.1 %) | 4 (11.1 %) | 8 (22.2 %) |
| Motor | 9 (25%) | 7 (19.4) | 16 (44.4 %) |
| Sensory | 1 (2.7 %) | 4 (11.1 %) | 5 (13.8 %) |
| Motor & Sensory | 2 (5.5 %) | 5 (13.9 %) | 7 (19.4 %) |
| Duration of Symptoms (years) | 5.4 ± 4.2 | 6.7 ± 4.8 | 6.2 ± 4.6 |
| B) Pathology | |||
| Types (No. patients (%)) | |||
| Isthmic | 15 (41.6 %) | ---- | 15 (41.6 %) |
| Degenerative | ---- | 21 (58.3 %) | 21 (58.3 %) |
| Surgery Levels (No. patients (%)) | |||
| One | 15 | 19 | 34 (94.4 %) |
| Two | 0 (0 %) | 2 (5.5 %) | 2 (5.5 %) |
| Grades 8 (No. levels (%)) | |||
| I | 4 (10.5%) | 18 (47.3%) | 22 (57.8 %) |
| II | 10 (26.3%) | 4 (10.5%) | 14 (36.8 %) |
| III | 1 (2.6 %) | 1 (2.6 %) | 2 (5.2 %) |
| IV | 0 (0 %) | 0 (0 %) | 0 (0 %) |
| V | 0 (0 %) | 0 (0 %) | 0 (0 %) |
| Levels (No. levels (%)) | |||
| L3-L4 | 0 (0 %) | 3 (7.8 %) | 3 (7.8 %) |
| L4-L5 | 5 (13.2 %) | 14 (36.8 %) | 19 (50 %) |
| L5-S1 | 10 (26.3 %) | 6 (15.7 %) | 16 (42.1 %) |
| Previous discectomy (No. patients (%)) | |||
| Yes | 0 (0 %) | 5 (13.9 %) | 5 (13.8 %) |
| No | 15 (41.8 %) | 16 (44.4 %) | 31 (86.2 %) |