World Library  
Flag as Inappropriate
Email this Article

Danis–Weber classification

Article Id: WHEBN0026810492
Reproduction Date:

Title: Danis–Weber classification  
Author: World Heritage Encyclopedia
Language: English
Subject: Gustilo open fracture classification, Lister's tubercle, Thomas test, Bone fractures, Gosselin fracture
Collection: Ankle Fracture Classifications, Bone Fractures, Injuries of Ankle and Foot, Orthopedic Classifications
Publisher: World Heritage Encyclopedia

Danis–Weber classification

The Danis–Weber classification (often known just as the Weber classification) is a method of describing ankle fractures. It has three categories:[1]

Category A

Fracture of the lateral malleolus distal to the syndesmosis (the connection between the distal ends of the tibia and fibula).

  • below level of the ankle joint
  • tibiofibular syndesmosis intact
  • deltoid ligament intact
  • medial malleolus often fractured
  • usually stable : occasionally nonetheless requires an open reduction and internal fixation (ORIF)
Category B

Fracture of the fibula at the level of the syndesmosis

  • at the level of the ankle joint, extending superiorly and laterally up the fibula
  • tibiofibular syndesmosis intact or only partially torn, but no widening of the distal tibiofibular articulation
  • medial malleolus may be fractured or deltoid ligament may be torn
  • variable stability
Category C

Fracture of the fibula proximal to the syndesmosis.

  • above the level of the ankle joint
  • tibiofibular syndesmosis disrupted with widening of the distal tibiofibular articulation
  • medial malleolus fracture or deltoid ligament injury present
  • unstable : requires ORIF

Categories B and C imply a degree of damage to the syndesmosis itself (which cannot be directly visualised on X-ray). They are inherently unstable and are more likely to require operative repair to achieve a good outcome. Type A fractures are usually stable and can be managed with simple measures, such as a plaster of paris cast.


  1. ^ Mcrae, Ronald; Esser, Max. Practical Fracture Treatment (Fifth ed.). p. 382.  

See also

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.