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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: The positional consistency between guidewire and cannulated or solid screw in robot-assisted spinal internal fixation surgery

Fig. 3

Consistency scale between guidewire and screw. A: Grade A, maximum distance between guidewire and screw less than 2 mm and angle less than 5 degrees in the region of pedicle; B: Grade B, maximum distance less than 2 mm and angle between 5 (included) and 10 (excluded) degrees. Axial angulation of 6.9° in B1 and Sagittal angulation of 6.2° in B2; C: Grade C, maximum distance equal to or more than 2 mm, or angle equal to or more than 10 degrees. Distance of 3.5 mm in C1 and angulation of 13.7° in C2

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X