Comparison of pterygomaxillary dysjunction with tuberosity separation in isolated Le Fort I osteotomies: a prospective, multi-centre, triple-blind, randomized controlled trial

Abstract The aim of this trial was to compare two techniques of maxillary dysjunction, with 10 mg/kg tranexamic acid as an adjuvant, in isolated non-segmented Le Fort I procedures. Two hundred patients were randomized to one of four groups: group A, pterygomaxillary dysjunction + saline; group B, tuberosity separation + saline; group C, pterygomaxillary dysjunction + tranexamic acid; and group D, tuberosity separation + tranexamic acid. Primary outcome measures were intraoperative blood loss and operating time, while the secondary outcome measures were surgical field assessment, need for blood transfusion, and duration of hospitalization. The data were analyzed using one-way analysis of variance (SPSS v. 17.0), and the level of significance was set at P