Efficacy of Locking Miniplates in Managing Mandibular Fractures without Intermaxillary Fixation

In maxillofacial trauma, the most commonly encountered are mandibular fractures requiring treatment. Managing these fractures with rigid fixation abolish the intermaxillary fixation (IMF) requirement with reduction and early return to function.

The present trial was carried out to assess clinically the effectiveness of new locking bone plate screw system postsurgically in mandibular fracture cases without IMF.

In 18 subjects, the fracture site was exposed, fracture segments were reduced and approximated keeping the occlusal relationship is desirable using locking 2 mm mini plates and screws without IMF. The subjects were followed every week for initial 4 weeks followed by evaluation for up to 6 months every month to assess clinical and radiographic healing and the results were formulated.

Road traffic accident was the cause in 10 subjects (55.5%), followed by assault in 22.2% (n = 4) subjects, and fall from height in 16.6% (n = 3) subjects. Parasymphysis was involved in 44.4% (n = 8), followed by symphysis in 11.1% (n = 2) subjects. A minor complication of wound dehiscence was seen in 5.5% (n = 1) subjects that were managed conservatively and a major complication of infection was also seen in 1 subject that required removal of the plate at 4 weeks of follow-up. Following plate removal, IMF was done for that subject. All other sites were healed uneventfully. Primary healing in bone was seen in 94.4% (n = 17) subjects and it was not seen in the case with infection.

Within the limitations, the present study concluded that the locking miniplate system is highly effective and reliable in treating mandibular fractures with acceptable results and a very low postoperative complications rate.