Finite Element Analysis on Iliosacral Screw Fixation for Sacral Stress Fracture: A Comparison between Three Systems

Abstract

Background: Sacral stress fracture is a rare but severe fracture that can be fixed by screw insertion. However, location and number of screws have been remained controversial. The goal of the present paper is to examine the efficiency of three fixation systems (1S-sup, 1S-inf and 2S) which vary in number and insertion location.