Abstract
The aim of surgical treatment is reconstruction of the coronoid process' bony anatomy. Large shear fractures of the coronoid process (Regan-Morrey typeII-III, O'Driscoll "tip" subtype2 and "basal" subtype1-2) and fractures of the anteromedial facet (O'Driscoll "anteromedial" subtype1-3) can occur isolated or as part of the "terrible triad" injuries to the elbow. Due to the resulting instability of these injuries, surgical reconstruction is generally indicated. In case of major accompanying soft tissue injuries to the elbow or an elbow infection, primary operative treatment using anatomical plate osteosynthesis is contraindicated. Plate osteosynthesis of the coronoid process is performed through amedial approach (Hotchkiss or M.flexor carpi ulnaris split). After repositioning of the fracture fragments, apreformed anatomical plate can be fixed to the coronoid process. The arm is immobilized in an over-the-elbow cast until the wounds are dried. Afterwards, the elbow should preferably be treated functionally without varus or valgus stress. Between January 2015 and July 2018, atotal of 11patients underwent osteosynthesis of the coronoid using anatomically preformed plate osteosynthesis. After amean follow-up of 10.7 months, the mean Mayo Elbow Performance Score showed an excellent result with 78.89 points. The Quick Disabilities of Arm, Shoulder and Hand (Q-DASH) score showed amedian of 18.64points with amean functional arc of 118°.
Published Version
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