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Fig. 1. —Line drawing shows normal appearance of postoperative sternum and radiographic signs of dehiscence, including displacement (displaced wires are highlighted in bold print) and midsternal stripe (wires have been removed from drawing for simplification). It has been proposed that mechanism of dehiscence involves sternal wires pulling or cutting through sternum rather than breaking. As sternum separates, some wires (bold print) travel with right side of sternum whereas others migrate with left side of sternum. Cleft between two sternal fragments is rarely visualized radiographically as midline radiolucency or stripe. (Illustration adapted with permission from [5])

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