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Fig. 4 | Journal of Orthopaedic Surgery and Research

Fig. 4

From: The placement of percutaneous retrograde acetabular posterior column screw based on imaging anatomical study of acetabular posterior column corridor

Fig. 4

Measurement of screw angle. Point P: Entry point. The blue solid line represented the coronal plane; The red arrow represented the optimum orientation of the screw and the dotted yellow arrows on both sides represented the critical orientations. Point P: Entry point. The blue solid line represented the sagittal plane; The red arrow represented the optimum orientation of the screw and the dotted yellow arrows on both sides represented the critical orientations

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