Abstract
Distal humerus fractures are complex and challenging to treat because of its bearing on elbow function and consequent affection of activities of daily living. This chapter discusses the indications and design features of implants that were historically used and the currently available modern plate systems. Kirschner wire fixation is adequate for pediatric supracondylar and lateral condyle fractures. Either 3.5 mm cortical screw or 4 mm cannulated cancellous screws are used to fix13-A1 fractures in the skeletally mature patients, and 13-B fractures in adults are fixed using either screws or combination of plate of screws depending on the fracture pattern. Headless compression screws help in internal fixation of fractures of the articular surface in the coronal plane. In adults, 13-A2, 13-A3, 13-C1, 13-C2, and 13-C3 fractures require the placement of two separate locking plates in either 180° configuration (parallel) or 90° configuration (perpendicular). The currently available anatomically precontoured locking plates provide angular stability with reduced chances of failure of bone implant interface. There are options for placement of locking plates on the medial, posterolateral, and lateral surfaces. Despite current biomechanical evidence favoring parallel dual plating configuration, the perpendicular dual plating is preferred for volar shear fracture patterns and the parallel dual plating is useful for internal fixation of very low fractures of distal humerus. Total elbow arthroplasty is an option in elderly, low-activity demand patients for “bag of bones” intra-articular fractures that cannot be reconstructed and stabilized adequately with internal fixation.
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Vishwanathan, K. (2023). Implantology of Fractures of the Distal Humerus. In: Banerjee, A., Biberthaler, P., Shanmugasundaram, S. (eds) Handbook of Orthopaedic Trauma Implantology. Springer, Singapore. https://doi.org/10.1007/978-981-19-7540-0_69
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