Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Comparison of demographic and clinical characteristics between the non-ASD and ASD groups
Non-ASD | ASD | P value | |
|---|---|---|---|
Number of patients | 166 | 68 | – |
Age at surgery, years | 58.5 ± 10.5 | 64.0 ± 7.6 | < 0.001 |
Sex | |||
Male | 66 (39.8%) | 36 (52.9%) | 0.065 |
Female | 100 (60.2%) | 32 (47.1%) | |
Fusion level | |||
L4–5 | 102 (61.4%) | 16 (23.5%) | < 0.001 |
L3–5 | 64 (38.6%) | 52 (76.5%) | |
Etiology | |||
Isthmic spondylolisthesis | 26 (15.7%) | 2 (2.9%) | 0.001 |
Degenerative spondylolisthesis | 56 (33.7%) | 12 (17.6%) | |
Disc herniation | 22 (13.3%) | 10 (14.7%) | |
Spinal stenosis | 16 (9.6%) | 8 (11.8%) | |
Multiple | 46 (27.7%) | 36 (52.9%) | |
Pfirrmann grade (cranial) | |||
1 | – | – | 0.768 |
2 | 20 (12.0%) | 6 (8.8%) | |
3 | 88 (53.0%) | 38 (55.9%) | |
4 | 58 (34.9%) | 24 (35.3%) | |
5 | – | – | |
Facet grade (cranial) | |||
0 | 24 (14.5%) | 16 (23.5%) | 0.189 |
1 | 80 (48.2%) | 24 (35.3%) | |
2 | 40 (24.1%) | 16 (23.5%) | |
3 | 22 (13.3%) | 12 (17.6%) | |
Disc height (cranial), mm | 9.2 ± 1.8 | 9.6 ± 2.0 | 0.136 |
BMI, kg/m2 | 26.3 ± 3.5 | 26.9 ± 4.5 | 0.330 |
Follow-up, months | 68.9 ± 12.8 | 70.7 ± 15.6 | 0.402 |
Medical comorbidities | |||
Coronary artery disease | 24 (14.5%) | 10 (14.7%) | 0.961 |
Diabetes mellitus | 42 (25.3%) | 20 (29.4%) | 0.518 |
Hypertension | 108 (65.1%) | 46 (67.6%) | 0.705 |
Cerebral infarction | 2 (1.2%) | 2 (2.9%) | 0.375 |
Osteoporosis | 6 (3.6%) | 7 (10.3%) | 0.043 |