USAGE OF ANTERIOR SUBCUTANEOUS INTERNAL FIXATOR FOR TREATMENT OF PELVIC FRACTURES (INFIX): OUR EXPERIENCE

Abstract Introduction Anterior subcutaneous internal fixator(INFIX) was proposed to treat anterior pelvic ring injury. INFIX initially designed as an alternative the external fixator, but recently its indications have been expanded, using it a definitive treatment, and multiple complications reported. Methods Retrospective study of 11 polytrauma patients with fractures treated fixator after high energy trauma between January (2018)-September (2021) Results patients. The average age 50,5 years old. mechanism injury precipitation, 5 run over 2 vehicle accidents. According Tile classification: type B:6 C:5, according Young lateral compression:3, anteroposterior compression:6 vertical shear:2. time implantation 4,3 days (0–17). In 10 cases sacroiliac screw associated at same surgery in one patient spinopelvic fixation. sitting allowed 24 hours partial weight-bearing 6 weeks later. until removal months follow up months. Complications rate 63,63%(n=7):3 Lateral femoral cutaneous nerve(LFCN) paresthesia:two them temporary another persistant one, 1 supracetabular osteolysis. implant infections, reosteosynthesis symphysis plates. common iliac vein thrombosis resolved antithrombotic treatment. Conclusions provides initial stability fast simple technique. However, some main complication is LFCN paresthesia, especially during fixator.