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Figure 2 | Patient Safety in Surgery

Figure 2

From: Prevalence of sacral dysmorphia in a prospective trauma population: Implications for a "safe" surgical corridor for sacro-iliac screw placement

Figure 2

Example of a "safe surgical corridor" for SI-screw trajectories in a normal (panel A) and dysmorphic sacrum (panel B). Based on the vestibular concept described by Carlson et al. [29], the entry point was placed perpendicular to the narrowest point at the level of the sacral foramen, the so-called "vestibule". See text for details and explanations.

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