Table 5 Importance ranking of 19 factors in SVM-RFE
Type | AvgRank | Type | AvgRank |
|---|---|---|---|
Lumbar vertebra bone density examination | 2.6 | Age | 12.0 |
Combined with thoracolumbar kyphosis | 3.1 | Preoperative MRI showed signal changes in the injured vertebrae | 12.4 |
Degree of vertebral compression | 3.6 | Upper and lower penetration of bone cement | 12.6 |
Sex | 5.9 | Time of spinal fracture | 12.8 |
Puncture path | 6.0 | Heart or lung disease | 13.0 |
Pre and post penetration of bone cement | 9.1 | Surgical vertebral segment | 14.5 |
History of trauma | 9.2 | Bone cement injection volume | 15.2 |
Associated with old vertebral fractures | 9.6 | classification. of fracture | 16.2 |
VAS score at discharge | 10.3 | VAS score | 16.2 |
Previous PVP operation history | 10.8 | Â | Â |