Fig. 4
From: Open technique for supra-acetabular pin placement in pelvic external fixation: a cadaveric study
Fluoroscopic image of pin placement on the left hemipelvis in the obturator outlet view (A), iliac oblique view (B), and obturator inlet view (C). The pin entry point is first identified in the obturator outlet view (A) in the center of the corridor of bone, and the pin is advanced using the iliac oblique view (B), with adjustment of the cephalad inclination angle above the sciatic notch (A, B: percutaneous technique). Pin penetration outside the lateral cortex (asterisk) of the iliac bone was demonstrated on the obturator inlet view (C: open technique)