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Fig. 3 | BMC Surgery

Fig. 3

From: Rates and risk factors of intrapedicular accuracy and cranial facet joint violation among robot-assisted, fluoroscopy-guided percutaneous, and freehand techniques in pedicle screw fixation of thoracolumbar fractures: a comparative cohort study

Fig. 3

Proximal facet joint violation in accordance with the Babu scale. A Grade 0, screw not in facet, transverse position (a); and Grade 1, screw in lateral facet but not in facet articulation, transverse position (b); B Grade 2, penetrating facet articulation less than 1 mm, transverse position (c); and Grade 3, traveling within facet articulation, transverse position (d)

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BMC Surgery

ISSN: 1471-2482

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