Figure 1.

Preoperative CT findings in case A. (A) Multiplanar reconstruction image indicating that the 4th sternebra was rotated 90˚ forward, its margin was rough and the density of the bone cortex was decreased. Soft-tissue swelling of the anterior chest wall was seen. (B) CT measurements: The distance between the suprasternal fossa and the site of dislocation was ~5.8 cm; the thickness of the sternal lesion was ~0.6 cm and the depth of the skin incision to the sternal lesion was ~0.7 cm. A, anterior; H, head; P, posterior.