Comparison of therapeutic results of closed and open repair of mandibular condylar fractures

BACKGROUNDMandibular condylar fractures mostly result from traumatic accidents or strife. There is still dispute on the effectiveness of various therapeutic methods. Here we aimed to evaluate and compare the open or closed repair methods for mandibular condylar fractures. METHODSThis is a clinical trial that was performed in 2015-2021 in Iran on all patients that referred to our medical centers with mandibular fractures due to traumatic events. Those cases with severe lateral dislocation of the mandibular condyles or severe dislocations of the fractured parts were assigned to the open surgical treatment group. The other patients were treated using Arch bar + intermaxillary fixation (IMF). The patient's abilities of mouth opening were assessed in centimeters within 1 month, 3 months, 6 months, 1 year and 2 years after the operations. RESULTS726 mandibular fractures were evaluated. Our data showed that 302 fractures (41.6%) were in the mandibular condyles. Of the 302 condylar fractures, 172 fractures (57.1%) occurred due to automobile accidents and 82 fractures (27.5%) occurred due to direct trauma. 203 patients (67.2%) underwent the close surgical procedures using maxillary and mandibular fixation using arch bar + IMF. 99 patients (32.8%) underwent open mandibular fixation operation and internal fixation (ORIF). Assessments of mouth opening showed significant improvements in this ability within the follow-up period in both groups (P