Measurement of the “Safe Zone” and the “Dangerous Zone” for the Screw Placement on the Quadrilateral Surface in the Treatment of Pelvic and Acetabular Fractures with Stoppa Approach by Computational 3D Technology

Table 1

Length and range of the specified points during the Stoppa approach (cm).

Model	EK	FK	GM	GN	HP	HQ
2.95 mm	2.90 (2.58–3.22)	1.74 (1.42–2.01)	1.93 (1.53–2.36)	2.57 (2.29–2.86)	2.76 (2.46–3.07)	1.79 (1.29–2.19)
6 mm	3.47 (3.09–3.84)	1.01 (0.64–1.25)	2.37 (1.97–2.78)	3.49 (3.15–3.85)	3.34 (3.09–3.56)	2.34 (1.95–2.65)