Thirty-four patients with acetabular fractures involving the quadrilateral plate were randomized to receive either supra-pectineal quadrilateral buttress plating (n=17) or infra-pectineal plating (n=17). The primary outcomes of interest were residual medial wall displacement, radiological outcomes (via the Matta score), and clinical outcomes (via the modified Merle d’Aubigné & Postel score). Secon...