A. Incorrect. While important, the vascular network does not primarily influence structural design.
C. Incorrect. While important postoperatively, its role in other steps of surgery preparation is crucial.
D. Incorrect. The vascular network's role is centered on the ribcage's functionality and surgical approach, not providing oxygen to the surgical team.
Correct! The intricate vascular network of the ribcage is crucial for surgical planning, influencing how and where incisions and dissections are made.