Summary of patient and surgical details.
| Variables | Value |
| Patient Details | |
| No. of patients | 53 |
| No. of operated levels | 97 |
| Age, y, mean ± SD | 67.5 ± 7.93 |
| Gender | |
| Men | 16 (30.2%) |
| Women | 37 (69.8%) |
| Body mass index, mean ± SD | 25.8 ± 4.56 |
| American Society of Anesthesiologists classification | |
| 1 | 2 (3.77%) |
| 2 | 36 (67.9%) |
| 3 | 15 (28.3%) |
| Surgical details | |
| No. of levels operated | |
| 1 | 19 (35.8%) |
| 2 | 24 (45.3%) |
| 3 | 10 (18.9%) |
| Levels operated | |
| L1–L2 | 3 (3.09%) |
| L2–L3 | 18 (18.6%) |
| L3–L4 | 40 (41.2%) |
| L4–L5 | 36 (37.1%) |
| Cage length, mm | |
| 40 | 3 (3.09%) |
| 45 | 27 (27.8%) |
| 50 | 41 (42.3%) |
| 55 | 23 (23.7%) |
| 60 | 3 (3.09%) |
| Cage height, mm | |
| 8 | 24 (24.7%) |
| 10 | 60 (61.9%) |
| 12 | 11 (11.3%) |
| 14 | 1 (1.03%) |
Note: Data presented as n (%) unless otherwise noted.