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Fig. 1 | Journal of Orthopaedic Surgery and Research

Fig. 1

From: Proper detailed parameters for S1 sacral alar iliac screw placement in the Chinese population, a 3D imaging study

Fig. 1

Case 7, 51-year-old female. 1 Posterior view of CT 3D imagine. A The entry point of S1AI trajectory. 2 Lateral view of CT 3D imagine. B The direction of S1AI trajectory. 3 Sagittal reconstructed plane of S1AI trajectory. C Sag. A.: 66.7°; D Skin D.: 63.8 mm. 4 Transverse plane of S1AI trajectory. E Tsv. A.: 40.3°; F Max. L.: 113.9 mm; G Sac. L.: 46.7 mm. H Iliac W.: 17.2 mm; I Cortex D.: 5.6 mm; J Mid. D.: 24.2 mm; K PSIS D.: 29.4 mm

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X