Can male chest implants (pec implants) work on someone with pectus carinatum?

It depends on the degree of the affliction. Usually, if the degree of Pectus Carinatum is mild, pectoral implants can effectively mask the problematic areas. The same is true for the concave affliction, Pectus Excavatum, which can also be treated using pec implants, if the condition is mild.