Table 1 Comparison of gender, age, body mass index (BMI), vertebral level, fusion segment numbers, screw implant location, result of straight leg-raising test, clinical diseases and renal dysfunction between patient with or without facet joint violations
Factors | Screw (n) | Location relationship between vertebral pedicle screw and facet joint (n) | P value | |
|---|---|---|---|---|
0 Point | 1 + 2 Point | |||
Gender | 0.493 | |||
Male | 70 | 54 | 16 (11 + 5) | |
Female | 68 | 49 | 1 (11 + 8) | |
Age | 0.007* | |||
<60 | 82 | 68 | 14 (10 + 4) | |
≥60 | 56 | 35 | 21 (12 + 9) | |
BMI | 0.006* | |||
<30 kg/m2 | 86 | 71 | 15 (10 + 5) | |
≥30 kg/m2 | 52 | 32 | 20 (12 + 8) | |
Adjacent superior vertebral level | 0.035* | |||
L3 | 8 | 8 | 0 | |
L4 | 90 | 69 | 21 (13 + 8) | |
L5 | 40 | 26 | 14 (9 + 5) | |
Fusion segment | 0.048* | |||
Single | 124 | 89 | 35 (22 + 13) | |
Double | 14 | 14 | 0 | |
Implant location | 0.328 | |||
Left | 69 | 49 | 20 (13 + 7) | |
Right | 69 | 54 | 15 (9 + 6) | |
Straight leg-raising test | 0.177 | |||
Negative result | 88 | 69 | 19 (12 + 6) | |
Positive result | 50 | 33 | 17 (10 + 7) | |
Clinical diseases | 0.942 | |||
Lumbar disc herniation and spinal stenosis | 96 | 71 | 25 (14 + 11) | |
Lumbar spondylolisthesis | 24 | 18 | 6 (4 + 2) | |
Endplate Modic changes | 18 | 14 | 4 (3 + 0) | |
Renal dysfunction | 0.983 | |||
No | 132 | 98 | 34 (22 + 12) | |
Yes | 6 | 5 | 1 (0 + 1) | |