Table 3 Secondary radiological results.

From: Radiological and clinical differences among three assisted technologies in pedicle screw fixation of adult degenerative scoliosis

 

Robot-PLIF

Template-PLIF

CT-based PLIF

Proximal facet joint violation*

Grade 0

1001 (98.9%)

868 (98.0%)

1245 (97.6%)

Grade 1

11 (1.1%)

16 (1.8%)

27 (2.1%)

Grade 2

0 (0)

2 (0.2%)

4 (0.3%)

Orientation of pedicle encroachment

Medial

0

2

1

Lateral

88

72

76

Superior

0

4

7

Inferior

0

5

5

  1. *Facet joint violation was evaluated according to the classification described by Kim et al. Grade 0 = no impingement, Grade 1 = screw head in contact/suspected to be in contact with facet joint, Grade 2 = screw clearly invaded the facet joint.
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