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 5 Vertical load displacement (mm) of the fracture gap for the 4 kinds of fixation for the U-type fracture

U-type fracture	Displacement (mm)
U-type fracture	A1A2	B1B2	C1C2
Single T-S1 fixation	0.35635	0.20655	0.38296
T-S1 S2 fixation	0.31875	0.17605	0.33581
Lumbopelvic fixation	0.27315	0.20383	0.14006
Bilateral triangular fixation	0.06335	0.02739	0.05047

ISSN: 1749-799X