Biomechanical study of transsacral-transiliac screw fixation versus lumbopelvic fixation and bilateral triangular fixation for “H”- and “U”-type sacrum fractures with traumatic spondylopelvic dissociation: a finite element analysis study

Table 7 Rotational displacement (mm) under a 7.5-N.m load in the standing position

U-type fracture	Displacement (mm)
U-type fracture	A1A2	B1B2	C1C2
Single T-S1 fixation	0.04347	0.03034	0.05064
T-S1S2 fixation	0.04059	0.02353	0.04319
Lumbopelvic fixation	0.01480	0.09143	0.03368
Bilateral triangular fixation	0.01015	0.00452	0.02920

ISSN: 1749-799X