A novel ultrasound-guided minimally invasive technique for the treatment of extracapsular condylar fractures.

The aim of this study was to present a novel ultrasound-guided minimally invasive technique for the treatment of extracapsular condylar fractures and evaluate its long-term outcomes. Seven patients with isolated extracapsular condylar fractures with a noncomminuted proximal segment were included in this study. Ultrasound was used for identification of the position of the bone segments and intraoperative confirmation of appropriate reduction. Reduction of the displaced segments was performed using threaded K-wires under ultrasonographic visualization. The bone segments were stabilized using an adjustable modified external fixator designed by us, which allows manipulation of the segments in three planes intraoperatively and postoperatively, if needed. The functional outcomes of patients were evaluated. Patients treated with ultrasound-guided percutaneous reduction and external fixation achieved normal occlusion with satisfactory mouth opening (>35 mm) and had no pain during mandibular movements at long-term follow-up. None of the patients had any signs of facial nerve injury. Within the limitations of the study it seems that the poposed approch might be an alternative to the open approach in selected cases.