Abstract
Most oblique mandibular fractures occur in the bone body especially the midline area, and osteosynthesis has been widely applied to such cases using the lag screw method. However, to the best of our knowledge, there have been no reports on applying the lag screw method because oblique fractures of the mandibular ramus are rare.
Furthermore, if the displacement of bone fragments is large or multiple fractures are found in the mandible, open reduction and internal fixation can be used in pediatric jaw fractures.
We report herein a case of oblique fracture of the pediatric mandibular ramus treated by open reduction and internal fixation using the lag screw method.
The patient was a 14-year-old boy whose face was beaten by an upper-grade student. Two fracture lines in the right paramedian and left mandibular ramus were found.
We performed open reduction and internal fixation of the mandible under general anesthesia. The oblique fracture of the mandibular ramus was osteosynthesized by two lag screws reaching the medial and lateral cortical bone from the anterior margin of the mandibular ramus after reduction and fixation of the paramedian fracture. We achieved early morphological and functional recovery of the pediatric oblique mandibular ramus fracture by open reduction and internal fixation using the lag screw method.
