Parameter |
Expandable |
Static |
Type of Surgery, n (%) |
|
|
One-level |
44 (77.2%) |
23 (71.9%) |
Two-level |
13 (22.8%) |
9 (28.1%) |
Levels Instrumented, n (%) |
|
|
L1-L2 |
4 (5.7%) |
0 (0.0%) |
L2-L3 |
11 (15.7%) |
7 (17.1%) |
L3-L4 |
23 (32.9%) |
15 (36.6%) |
L4-L5 |
32 (45.7%) |
19 (46.3%) |
Mean Estimated Blood Loss, Mean (SD) |
|
|
One-level |
22.0 (10.5) |
38.9 (30.1) |
Two-level |
30.8 (7.3) |
86.7 (155.9) |
Mean Operative Time, Mean (SD) |
|
|
One-level |
53.4 (11.0) |
65.0 (39.6) |
Two-level |
79.9 (20.1) |
84.1 (32.2) |
Mean Length of Hospital Stay, Mean (SD) |
|
|
One-level |
3.3 (2.0) |
2.1 (1.2) |
Two-level |
4.5 (2.8) |
2.6 (1.9) |