Novel handheld pelvic alignment guide for hollow screw fixation in osteoporotic pelvic fragility fractures

Figure 2 Simulated procedure of retrograde hollow screw insertion using the handheld pelvic alignment guide on a pelvic model. A: The entry point is prepared using a 3.5 mm drill through the superior pubic ramus; B: The handheld pelvic alignment guide (HPAG) probe is inserted and advanced across the simulated fracture line; C: The handle is connected to the probe to maintain alignment; D: The guide pin is advanced through the central canal of the HPAG system; E: The probe remains in place, allowing for trajectory verification; F: The handle and inner core are removed, leaving the guide wire in situ; G: A hollow screw is inserted along the guide wire; H: Final position of the screw confirming proper alignment and depth.