Biomechanical study of Tile C3 pelvic fracture fixation using an anterior internal system combined with sacroiliac screws

Abstract Background How to perform minimally-invasive surgery on Tile C pelvic fractures is very difficult, and it also a hot topic in orthopedic trauma research. We applied treatment using an anterior internal fixator combined with sacroiliac screws. Objectives To compare the biomechanical properties of different fixation models facture specimens, system or steel plate Methods Sixteen fresh adult cadaver specimens were randomly separated into four groups named A, B, C, D. The respectively stabilized two-screwed, three-screwed, four-screwed All tested both standing sitting positions. Vertical loads 600 N increasingly. Shifts bilateral joints pubis rupture measured. Results shifts position all less than 3.5 mm, 1 mm. In position, results group < D B A. For comparisons between A:B C:D, P > 0.05. B:C, D, ruptures comparison 0.05; for A:B, A:C, A:D, B:D, posture, roup Conclusion Use screws effectively C3 fractures. stability increased as number increased.