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Wheeless' Textbook of Orthopaedics

Type III Olecranon Frx




- Discussion:
        - frx is displaced & forearm is unstable in relation to humerus;
        - this injury is really a fracture-dislocation;
        - Avulsion Fracture
        - Comminuted Fractures
        - Distal Olecranon Fracture:
        - Oblique Fractures
        - Transverse Fractures

- Sub-Classfication:
        - Unstable, displaced fractures:
        - III-A: unstable displaced frx;
        - III-B:
                - comminuted, unstable, displaced frx;
                - comminution threatens adequacy of plate fixation alone;

- Surgical Considerations:
        - w/ frx comminution, it is important to align the fracture by aligning the cortex
                instead of the articular surface, noting that the sigmoid notch is typically
                devoid of cartilage in its mid section (the effect of which would be
                narrowing of the notch); - see: anatomy of olecranon;
        - Excision of Olecranon is contra-indicated in type III fractures,
                since there is inherent instability w/ this type of frx, and olecranon
                excision would promote even more instability;

- Treatment Options:
        - Surgical Approach:
        - Tension Band Wiring: (probably not indicated w/ comminuted frx)
        - Plate Fixation:





Original Text by Clifford R. Wheeless, III, MD.