Group A | Group B | Group C | p-valuea | p-valueb | p-valuec | |
---|---|---|---|---|---|---|
No. of patients, n (%) | 19 (15.4) | 21 (17.1) | 83 (67.5) | NA | NA | NA |
Age (years), mean (SD) | 53.0 (9.74) | 54 (9.80) | 52.2 (10.26) | 0.74 | 0.78 | 0.47 |
Female, n (%) | 10 (52.6) | 14 (66.7) | 43 (51.8) | 0.23 | 0.86 | 0.27 |
Body mass index (kg/m2), mean (SD) | 23.3 (1.81) | 22.3 (2.06) | 22.5 (2.14) | 0.14 | 0.18 | 0.61 |
Preoperative T score, (n available) | −1.64 (7) | −1.23 (8) | − 1.51 (27) | 0.14 | 0.57 | 0.18 |
No. of segments, n (%) | 34 (17.4) | 40 (20.4) | 122 (62.2) | NA | NA | NA |
Spondylolisthesis, n (%) | 8 (42.1) | 7 (33.3) | 33 (39.8) | 0.58 | 0.85 | 0.60 |
Spinal canal stenosis, n (%) | 11 (57.9) | 14 (66.7) | 50 (60.2) | 0.58 | 0.85 | 0.60 |
Single level fusion, n (%) | 6 (31.6) | 7 (33.3%) | 43 (51.8) | 0.91 | 0.11 | 0.13 |
Multiple level fusion, n (%) | 13 (68.4) | 14 (66.7%) | 40 (48.2) | 0.91 | 0.11 | 0.13 |
Follow-up period (CT imaging), mean 12.0 (3–39) |