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Open Treatment with Ultrasound Activated Resorbable Pins Versus Closed Treatment of Adult Mandible Condylar Head Fractures

Abstract

Purpose

The purpose of the study was to investigate whether open reduction and internal fixation (ORIF) with ultrasound activated resorbable pins (UARPs) is superior to closed treatment of condylar head (CH) fractures. The investigators hypothesized that fixation with UARPs is superior to closed treatment of CH fracture.

Methods

It was a prospective pilot study on CH fracture patients. Patients in closed group were managed conservatively with arch bar fixation and elastic guidance. Fixation in open group was done with UARPs. Assessment was done for primary objective of stability of fixation by UARPs and secondary objectives of functional outcome and complications.

Results

The study sample included 20 patients (10 in each group). 10 patients (11 joints) in closed group and 9 patients (10 joints) in open group were available for final follow-up. 5 joints showed re-dislocation of fractured segment, 1 joint showed slightly imperfect but adequate fixation and 4 joints showed adequate fixation in open group. In the closed group, displaced fragment was fused with mandible at displaced position in all the joints. All the joints showed resorption of medial condylar head at 3 months follow-up in open group. There was minimal resorption of condyle in closed group. Occlusion was deranged in 3 patients in open group and 1 patient in closed group. MIO, pain scores and lateral excursions were equal in both the groups.

Conclusion

The results of the present study rejected the hypothesis that fixation of CH with UARPs was superior than closed treatment. There was resorption of medial CH fragment in open group as compared to closed group.

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Correspondence to Poonam Yadav.

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Yadav, P., Rattan, V., Rai, S. et al. Open Treatment with Ultrasound Activated Resorbable Pins Versus Closed Treatment of Adult Mandible Condylar Head Fractures. J. Maxillofac. Oral Surg. (2021). https://doi.org/10.1007/s12663-021-01631-z

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Keywords

  • Condylar head fracture
  • Open treatment
  • Closed treatment
  • Ultrasound activated resorbable pins
  • Re-dislocation
  • Stability