Research Article
Accuracy of Robot-Assisted Percutaneous Pedicle Screw Placement under Regional Anesthesia: A Retrospective Cohort Study
Table 2
Baseline characteristics.
| Characteristics | Group EP-RO | Group GE-FLU | Overall | value |
| No. of patients | 18 | 23 | 41 | | Female sex (%) | 55.6 | 52.2 | 53.7 | 0.83 | Age (years)✟ | 61.6 ± 7.1 | 62.4 ± 6.1 | 62.1 ± 6.5 | 0.71 | Mean BMI (kg/m2)✟ | 26.0 ± 3.6 | 25.5 ± 2.9 | 25.7 ± 3.2 | 0.58 | Superior facet joint angle✟ | 44.1 ± 3.6 | 43.8 ± 2.1 | 44.0 ± 3.2 | 0.56 | Diagnoses | | | | 0.88 | LDH | 4 | 5 | 9 | | LSS | 9 | 10 | 19 | | Lumbar spondylolisthesis | 5 | 8 | 13 | | Location of screws | | | | 0.98 | L3 | 3 | 4 | 7 | | L4 | 14 | 19 | 33 | | L5 | 16 | 20 | 36 | | S1 | 4 | 4 | 8 | |
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Values are the number or the number (%) of patients. ✟Values are presented as mean ± SD. BMI indicates body mass index. |