O'Driscoll classification of coronoid process fractures
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At the time the article was created Antonio Rodrigues de Aguiar Neto had no recorded disclosures.View Antonio Rodrigues de Aguiar Neto's current disclosures
At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose.View Ashesh Ishwarlal Ranchod's current disclosures
The O'Driscoll classification system of coronoid process fractures distinguishes three types of coronoid process fractures of the ulna, and this classification system is useful when assessing further treatment options 1-4.
- type I: transverse coronoid tip fractures, which affect one-third of the process
type II: injuries involve the anteromedial facet, with subtypes varying according to the fracture's location along the facet and the sublime tubercle's degree of involvement
- subtype 1: involvement of only the anteromedial portion
- subtype 2: involvement of anteromedial portion and tip
- subtype 3: involvement of anteromedial portion, tip, and >50% of sublime tubercle
- type III: involve the coronoid process base, with disruption of more than 50% of the coronoid body
Small type I injuries can be treated non-operatively if stability is maintained; however, if these fractures are associated with instability, it requires surgical repair 1-4. In general coronoid process fractures, type II and III require surgical repair to maintain elbow stability, and the surgical approach varies by fracture type 1-4.
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- 3. Scott E. Sheehan, George S. Dyer, Aaron D. Sodickson, Ketankumar I. Patel, Bharti Khurana. Traumatic Elbow Injuries: What the Orthopedic Surgeon Wants to Know. (2013) RadioGraphics. doi:10.1148/rg.333125176
- 4. Foruria AM, Gutiérrez B, Cobos J, Haeni DL, Valencia M, Calvo E. Most coronoid fractures and fracture-dislocations with no radial head involvement can be treated nonsurgically with elbow immobilization. (2019) Journal of shoulder and elbow surgery. 28 (7): 1395-1405. doi:10.1016/j.jse.2019.01.005 - Pubmed