What are the costs involved in correcting pectus carinatum? both by surgical measures and by using braces.

Hard to speculate: These costs very with the degree of defect, the treatment plan, the region of the country or world (no data provided). They may be partially of fully covered under various insurance plans. Surgical treatments would involve the surgeon, anesthesiologist, operating room staff, pre& post op stays, etc. Most treating physicians have an office staff that could provide estimates.