Introduction <p>Mandibular fractures are among the commonest fractures of maxillofacial region with anterior-mandibular fractures accounting for 8–15%. Mini-plates with or without arch bar is the most commonly used fixation method to achieve ORIF. However, the mandible symphysis is uniquely shaped for the application of lag-screws.</p> Aim <p>This study aims at evaluating the effectiveness of lag-screws in comparison with mini-plates in fixation of anterior mandibular fractures.</p> Methodology <p>20 patients diagnosed with anterior mandibular fractures were divided into 2 equal groups. Group-A was treated using lag-screws and Group-B was treated using mini-plates. Radiographs were taken for evaluation of fracture site. The results were assessed for mobility of fracture segments, stability of occlusion, paresthesia, and pre-operative, intra-operative and post-operative distances between fracture segments.</p> Results <p>There was a significant reduction in clinical distance between the reduced fracture fragments in the lag-screw group. A substantial reduction of radiographic distance between fracture segments was observed post-operatively in the lag-screw group, unlike the mini-plate group. A lesser interfragmentary distance was observed in patients treated with the lag-screw technique.</p> Conclusion <p>While lag screws and miniplate techniques are both stable forms of fixation, there is more interfragmentary bony contact with lag-screws, thus ideal for fixation of anterior mandibular fractures.</p>

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Comparative evaluation of lag screws and miniplates in the fixation of anterior mandibular fractures– a prospective study

  • Sonal Jawa,
  • G. Prathibha,
  • Kavitha Prasad,
  • K. Ranganath,
  • Parimala Sagar,
  • Surabhi Chandra

摘要

Introduction

Mandibular fractures are among the commonest fractures of maxillofacial region with anterior-mandibular fractures accounting for 8–15%. Mini-plates with or without arch bar is the most commonly used fixation method to achieve ORIF. However, the mandible symphysis is uniquely shaped for the application of lag-screws.

Aim

This study aims at evaluating the effectiveness of lag-screws in comparison with mini-plates in fixation of anterior mandibular fractures.

Methodology

20 patients diagnosed with anterior mandibular fractures were divided into 2 equal groups. Group-A was treated using lag-screws and Group-B was treated using mini-plates. Radiographs were taken for evaluation of fracture site. The results were assessed for mobility of fracture segments, stability of occlusion, paresthesia, and pre-operative, intra-operative and post-operative distances between fracture segments.

Results

There was a significant reduction in clinical distance between the reduced fracture fragments in the lag-screw group. A substantial reduction of radiographic distance between fracture segments was observed post-operatively in the lag-screw group, unlike the mini-plate group. A lesser interfragmentary distance was observed in patients treated with the lag-screw technique.

Conclusion

While lag screws and miniplate techniques are both stable forms of fixation, there is more interfragmentary bony contact with lag-screws, thus ideal for fixation of anterior mandibular fractures.