Carinci et al reported a staging system for mandibular fractures. The authors are from Civil Hospital in Rovigo, Italy.
Separation of the mandible into 2 regions based on a line passing from the insertion of the mentalis muscle, through the mental foramen and up to the mandibular incisure. This delineates:
(1) alveolar or anterior (A)
(2) basal or posterior (B)
Fractures result in:
(1) mobile fragments in the A and/or B regions
(2) complete separation
1 (mobile fragment on A matches one on B)
• It is unclear how 3 or more mobile fragments that do not result in a complete separation are staged.
• In Figure 5 an F3 may include 1 complete and 1 mobile fragment. It also shows an F4 as 2 complete and 1 mobile fragment.
Mandibular subsites to further localize the fracture:
anterior through a vertical line through the mental foramen
between a vertical line through the mental foramen and a vertical line behind the second molar
between a vertical line behind the second molar and a horizontal line through the base of the second molar (includes the angle)
between the horizontal line passing through the base of the second molar and 2 slanted lines arising in the mandibular incisure, with one separating the coronoid process and the second separating the condylar process.
above zone 3, including the coronoid process
above zone 3, including the condylar process
To read more or access our algorithms and calculators, please log in or register.
Specialty: Otolaryngology, Emergency Medicine, Surgery, general