Cortical lag screw fixation for the management of mandibular injuries

Transbuccal vs. Intraoral Approach using an Angulated Screwdriver in Fixation of a Mandibular Angle Fracture

Objectives:

This study aimed to evaluate surgical stability and cosmetic outcomes in patients with mandibular angle fractures (MAFs) using an angled screwdriver (ASD) versus transbuccal trocar (TBT) for single locking plate fixation.

Methods:

A prospective cohort clinical study was done on 44 male patients (88%) and 6 (12% females patients with MAFs, categorized into 2 groups. Group A patients were treated with strictly intraoral vestibular incision using an angulated screwdriver; group B was treated with TBT. Both groups placed a single locking 2.0 mm mini-plates at the inferior border. The main outcome variables were the perioperative complication rate.

Results:

There were no statistical differences between both groups regarding postoperative wound dehiscence, screw or/and plate looseness, infection rate, and inferior dental nerve injury. The study (ASD) approach took 28.10±3.3minutes, while the TBT approach took 37.40±1.75minutes, indicating a highly significant difference in operating time (P=0.001). Post-operative edema had decreased significantly in the ASD group.

Conclusion:

According to the present results, a strictly intraoral approach for ASD enabled stable fixation of MAFs using a single mini-locking plate. This can significantly reduce operation time and postoperative edema and prevent extraoral scarring.