Le Quang H, Schmoelz W, Lindtner RA, et al. - The present study was conducted to biomechanically compare five different fixation techniques for transverse acetabular fractures applying both the single-leg stance (SLS) and the sit-to-stand (STS) loading protocols and to directly compare fracture gap motion (FGM) and relative interfragmentary rotation (RIFR). Researchers constructed transtectal transverse acetabular fractures on fourth-generation composite hemipelves in a reproducible manner. An optical 3D measurement system was applied to assess FGM and RIFR under loads of 750 N. The data suggested that SLS loading seemed to overestimate the strength of acetabular fracture fixation constructs and STS loading may be more appropriate to serve clinically relevant biomechanical data. For transverse fractures, internal fixation of a single column might not serve adequate stability, while the strength of single plate plus column screw fixation and double plate fixation was comparable.