Table 1 Patient demographics and surgical data
Initial cohort (n = 40) | No posterior instrumentation (n = 16) | Posterior instrumentation (n = 24) | ||||
|---|---|---|---|---|---|---|
mean ± SD | (range) | mean ± SD | (range) | mean ± SD | (range) | |
n (%) | n (%) | n (%) | ||||
Age (years) | 48.7 ± 9.8 | (29 – 65) | 47.3 ± 8.9 | (34 – 65) | 49.7 ± 10.4 | (29 – 65) |
BMI (kg/m2) | 25.8 ± 3.5 | (18 – 39) | 26.0 ± 4.6 | (20 – 39) | 25.6 ± 2.7 | (18 – 30) |
Female | 26 (65%) | 11 (69%) | 15 (63%) | |||
Smokers | 15 (38%) | 6 (38%) | 9 (38%) | |||
Diabetes | 1 (3%) | 0 (0%) | 1 (4%) | |||
Indications at L5-S1* | ||||||
DDD | 26 (65%) | 15 (94%) | 11 (46%) | |||
Modic changes | 7 (18%) | 4 (25%) | 3 (13%) | |||
Spondylolisthesis | 11 (28%) | 0 (0%) | 11 (46%) | |||
Stenosis | 23 (58%) | 11 (69%) | 12 (50%) | |||
Levels fused | ||||||
L5-S1 | 22 (55%) | 11 (69%) | 11 (46%) | |||
Both | 18 (45%) | 5 (31%) | 13 (54%) | |||
Type of cage at L4-L5 | ||||||
Roi A (Zimmer Biomet) | 12 (30%) | 0 (0%) | 12 (50%) | |||
Synfix (DePuy Synthes) | 6 (15%) | 5 (31%) | 1 (4%) | |||
None | 22 (55%) | 11 (69%) | 11 (46%) | |||
Type of cage at L5-S1 | ||||||
Roi A (Zimmer Biomet) | 7 (18%) | 1 (6%) | 6 (25%) | |||
Idys ALIF (Clariance) | 33 (83%) | 15 (94%) | 18 (75%) | |||