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Related Experiment Videos

Radiographic changes during bone healing after mandibular fractures

T Kawai1, S Murakami, H Hiranuma

  • 1Department of Oral and Maxillofacial Radiology, Osaka University Faculty of Dentistry, Suita, Japan.

The British Journal of Oral & Maxillofacial Surgery
|January 14, 1998
PubMed
Summary

Optimal timing for mandibular fracture follow-up and fixation removal is determined by patient age. Radiographic assessment guides healing, with younger patients showing earlier osteogenic changes and union.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Radiology
  • Orthopedic Surgery

Background:

  • Mandibular fractures require careful management to ensure proper healing and restoration of function.
  • Determining the optimal timing for radiological follow-up and hardware removal is crucial for successful outcomes.
  • Previous studies have varied in their recommendations, necessitating further investigation into age-specific timelines.

Purpose of the Study:

  • To establish the most appropriate intervals for radiological examinations following mandibular fractures.
  • To determine the optimal timing for the removal of internal fixation materials used in treating mandibular fractures.
  • To correlate radiographic evidence of healing with patient age and time elapsed since injury.

Main Methods:

Related Experiment Videos

  • A retrospective analysis of serial radiographs from 325 mandibular fracture sites in 231 patients over a 10-year period.
  • Radiographic assessment focused on features of osteogenesis and union at intervals of <2, 2-3, 3-4, and ≥4 months post-injury.
  • Patient age was categorized into <18 years and ≥18 years for comparative analysis.

    • Main Results:

    • Osteogenic change, indicative of healing and union, was the primary radiographic criterion.
    • In patients <18 years, predominant osteogenic change was observed 1-2 months post-injury (68%).
    • In patients ≥18 years, predominant osteogenic change was observed 2-3 months post-injury (84%).
    • Overall union was achieved in 85% of patients by 3 months post-fracture.

    Conclusions:

    • Follow-up radiographic examination is recommended at the fifth week for patients <18 years and the ninth week for older patients after mandibular fracture.
    • Removal of fixation materials should be considered around the fifth month post-injury.
    • Radiographic evaluation of osteogenic change provides a reliable measure for assessing mandibular fracture healing timelines.