uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
A comprehensive classification of mandibular fractures: a preliminary agreement validation study
Show others and affiliations
2008 (English)In: International Journal of Oral and Maxillofacial Surgery, ISSN 0901-5027, Vol. 37, no 12, 1080-8 p.Article in journal (Refereed) Published
Abstract [en]

This study evaluates a comprehensive classification system for mandibular fractures based on imaging analysis. The AO/ASIF scheme, defining three fracture types (A, B, C), three groups within each type (e.g. A1, A2, A3) and three subgroups within each group (e.g. A1.1, A1.2, A1.3) with increasing severity from A1.1 (lowest) to C3.3 (highest) was used. The mandible is divided into two vertical units (I and V), two lateral horizontal units (II and IV) and one central unit (III) comprising the symphyseal and parasymphyseal region. Type A fractures are non-displaced, type B are displaced and type C are multifragmentary/defect injuries. Groups and subgroups are further defined in the classification system. Two classification sessions using semi-automatic software with 7 and 9 surgeons were performed to evaluate 100 fracture cases in the first session and 50 in the second. Inter-observer reliability and individual rater's accuracy were evaluated by kappa coefficient and latent class analysis, respectively. The analysis of inter-observer agreement for the detailed coding showed kappa coefficients around 0.50 with higher agreement among raters in the vertical units. This system allows standardization of documentation of mandibular fractures, although improvement in the definition of categories and their application is required.

Place, publisher, year, edition, pages
2008. Vol. 37, no 12, 1080-8 p.
Keyword [en]
mandibular fractures, classification, face, fractures, conventional panoramic tomography, fractures, validation, reliability
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-100368DOI: 10.1016/j.ijom.2008.06.008ISI: 000261965100002PubMedID: 18672348OAI: oai:DiVA.org:uu-100368DiVA: diva2:210175
Available from: 2009-03-31 Created: 2009-03-31 Last updated: 2009-04-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed
By organisation
Oral and Maxillofacial Surgery
In the same journal
International Journal of Oral and Maxillofacial Surgery
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 194 hits
ReferencesLink to record
Permanent link

Direct link