Clinician variability in characterizing mandible fractures

Area of Science:

• Oral and Maxillofacial Surgery
• Trauma Surgery
• Radiology

Background:

• Accurate characterization of mandible fractures is crucial for effective treatment planning and outcome assessment.
• Variability in clinical descriptions can lead to inconsistencies in patient care and research data.

Purpose of the Study:

• To evaluate the inter-rater and intra-rater reliability of clinical parameters used in mandible fracture assessment.
• To identify sources of variability in the description and scoring of mandible fractures.

Main Methods:

• 18 oral and maxillofacial surgeons assessed 22 mandible fracture cases using radiographs.
• Evaluated parameters included fracture number, location, displacement, and overall injury severity.
• Inter-rater and intra-rater reliability were quantified using interclass correlation coefficients and multiple-rater kappa statistics.

Main Results:

• Inter-rater agreement varied from excellent for simple fractures to poor for complex gunshot injuries.
• Intra-rater reliability for complex injuries was moderate (ICC 0.33-0.42).
• Fracture displacement measured in millimeters showed moderate to excellent reliability, while categorical assessment was only fair. Number, type, and displacement (mm) predicted severity ratings.

Conclusions:

• Significant clinician variability exists in characterizing mandible fractures, highlighting challenges in trauma description.
• Specific fracture locations (e.g., symphysis, canine) and complex injuries showed lower agreement.
• Standardized guidelines are essential to improve consistency in mandible fracture assessment.