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Table 2 Classification of screw insertion

From: Patient-specific drill template for C2 transoral pedicle insertion in complete reduction of atlantoaxial dislocation: cadaveric efficacy and accuracy assessments

Grade

PDT group

Freehand group

Type I

8 (80%)

5 (50%)

Type II

2 (20%)

3 (30%)

Type III

0

2 (20%)

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X