Table 2 Comparison of preoperative clinical characteristics in both groups after propensity score matching
OLIF with TFS | OLIF with BPS | P-value | |
|---|---|---|---|
Patients, No. | 11 | 11 | |
Age, Mean ± SD, years | 59.8 ± 11.0 | 62.6 ± 7.2 | 0.380 |
Sex, No. | 1.000 | ||
Female | 8 | 8 | |
Male | 3 | 3 | |
BMD, Mean ± SD, mg/cm3 | 96.7 ± 22.1 | 95.4 ± 16.7 | 0.861 |
BMI, Mean ± SD | 25.9 ± 3.0 | 25.7 ± 3.4 | 0.881 |
Smoking history, No. | 1.000 | ||
Yes | 3 | 3 | |
No | 8 | 8 | |
Diagnosis, No. | 1.000 | ||
LS | 6 | 7 | |
LSCS | 5 | 4 | |
Level, No. | 1.000 | ||
L4/5 | 10 | 11 | |
L3/4 | 1 | 0 | |
Cage, height, No. | 0.875 | ||
10 mm | 1 | 1 | |
11 mm | 1 | 0 | |
12 mm | 3 | 4 | |
13 mm | 1 | 0 | |
14 mm | 3 | 5 | |
15 mm | 2 | 1 | |
Cage, length, No. | 0.670 | ||
45 mm | 0 | 2 | |
50 mm | 6 | 5 | |
55 mm | 5 | 4 | |
Cage, width, No. | 1.000 | ||
18 mm | 9 | 8 | |
22 mm | 2 | 3 |