Boahene KO, et al. - The feasibility of a multivector gracilis muscle flap design for reanimation after facial paralysis was ascertained. Researchers also analyzed its effect on the smile display zone. It was noted that for a multivector facial reanimation, the gracilis flap can be reliably designed as a functional double paddle muscle flap. The multivector gracilis flap design was identified as effective in improving all components of the smile display zone and showed the potential for producing periorbital-wrinkling characteristic of a Duchenne smile.