Effect of the screw type (S2-alar-iliac and iliac), screw length, and screw head angle on the risk of screw and adjacent bone failures after a spinopelvic fixation technique: A finite element analysis.
Jong Ki ShinBeop-Yong LimTae Sik GohSeung Min SonHyung-Sik KimJung Sub LeeChi-Seung LeePublished in: PloS one (2018)
It was found that the S2AI screw, rather than the iliac screw, reduced the risk of implant failure for the spinopelvic fixation technique, and the 90-mm screw length with a 15° head angle for the S2AI screw could be biomechanically advantageous.