Mandibular Fracture Classification — ORE Part 1 MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: D — Fracture geometry and muscle forces resist fragment displacement
Explanation lettering: B = shown as A · C = shown as B · E = shown as C · A = shown as D · D = shown as E
A favourable mandibular fracture is defined by the relationship between the fracture-line orientation and the forces exerted by attached muscles. The geometry means these forces tend to impact or stabilise the fragments rather than distract them, so displacement is resisted. This is a classification of fracture mechanics, not a prediction that conservative treatment will suffice (B). Communication with the mouth determines whether a fracture is open or closed, rather than favourable or unfavourable (C). Age and general healing potential are patient factors, not fracture descriptors (D). Although favourable geometry may influence treatment planning, the term does not mean that plate fixation is technically easy (E).
Reference: Nardi C, Vignoli C, Pietragalla M, et al. Imaging of mandibular fractures: a pictorial review. Insights into Imaging. 2020. Figure 4 (horizontal branch fractures). https://pubmed.ncbi.nlm.nih.gov/32076873/