Radial Head Prosthesis after Radial Head and Neck Fractures - Current Literature and Quality of Evidence

Abstract

CURRENT CONCEPTS REVIEW SOUBORNÝ REFERÁTelbow joint will usually trigger a radial head or neck fracture. Posterior luxation and radial head fractures have been documented in 75% of experiments. There is ample clinical evidence of the typical longitudinal anterolateral fracture line. In general, 60% of the axial force is transferred via the radial head. Anatomy and biomechanicsThe elbow, a highly complex three-dimensional joint consisting of bone and ligaments, contains humeroulnar, humeroradial, and proximal radioulnar joints. The medial collateral ligament (MCL) is normally the primary stabilizer to valgus stress, but when the MCL is torn, the radial head absorbs the greatest amount of valgus stress. There is evidence that comminuted radial had fractures are closely associated with a high rate of capsule-ligamentous injuries. The primary stabilizer to varus stress is a lateral ligamentous complex consisting of a radial collateral ligament, the lateral ulnar ligament, ligamentum anulare and accessory collateral ligaments. The la te ral ulnar collateral ligament (LCL) originates from an isometric point on the lateral epicondylus and is