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The radiological findings in complex elbow fracture-dislocation injuries

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Abstract

Elbow fracture-dislocation is a complex injury which can lead to significant bony and soft tissue damage. Surgical intervention is guided towards restoring joint stability, allowing early mobilization and preventing long-term joint stiffness. The most common types are posterolateral, posteromedial, Monteggia type (and variants), and anterior trans-olecranon fracture-dislocations. Posterolateral fracture-dislocation is characterized by a radial head fracture (± anterolateral coronoid fracture) and typically capsuloligamentous disruption (lateral collateral ligaments injury is the most common). A posterolateral fracture-dislocation with radial head and coronoid anterolateral facet fractures is termed a terrible triad injury. In posteromedial fracture-dislocation, there is a fracture of the anteromedial facet of the coronoid, typically with proximal avulsion of the lateral collateral ligaments (± injury to the posterior bundle of the ulnar collateral ligament). Monteggia fracture-dislocation injuries demonstrate proximal ulnar fracture (with possible involvement of the olecranon and the coronoid) and radial head dislocation. These can be divided into apex anterior or apex posterior variants. The latter are commonly associated with radial head fractures and lateral ligamentous injury, and have a worse prognosis. In trans-olecranon fracture-dislocation, there is significant disruption of the greater sigmoid notch and the olecranon, with various involvement of the coronoid and the proximal ulna. The article describes the radiological findings and outlines the management principles in complex elbow fracture-dislocation injuries.

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Authors and Affiliations

  1. Radiology Department, Wrightington, Wigan and Leigh NHS Foundation Trust, Royal Albert Edward Infirmary, Wigan Lane, Wigan, WN1 2NN, UK

    Zeid Al-Ani, Jun-Li Tham & Michelle Wei Xin Ooi

  2. Upper Limb Unit, Wrightington Hospital, Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK

    Andrew Wright, Matthew Ricks & Adam C. Watts

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Al-Ani, Z., Tham, JL., Ooi, M.W.X. et al. The radiological findings in complex elbow fracture-dislocation injuries. Skeletal Radiol 51, 891–904 (2022). https://doi.org/10.1007/s00256-021-03900-x

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