Complex Elbow Instability: What’s New in the Diagnosis, Classification and Principles of Surgical Treatment
2019
Complex elbow instability represent a challenging injury even for expert elbow surgeons. Chronic instability, posttraumatic osteo-arthritis, stiffness and poor functional outcomes are frequent if these injuries are not adequately treated. A correct preoperative evaluation includes X-rays, CT scan with 2D and 3D reconstruction and stability tests under fluoroscopy in order to recognize all osseous and ligamentous lesions. The most common patterns of complex elbow instability includes: (1) radial head fractures associated with lateral and medial collateral ligaments lesions; (2) coronoid fractures and lateral collateral ligament lesion; (3) Terrible Triad; (4) fracture-dislocations of the proximal ulna and radius, also referred to as transolecranon fracture-dislocations and Monteggia-like lesions; and (5) humeral shear fractures associated with lateral and medial collateral ligament lesions.
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