The Multivector Gracilis Free Functional Muscle Flap for Facial Reanimation

摘要

P ??.001). The mean exposed maxillary gingival scaffold width improved from 31.5 mm to 43.7 mm (95% CI, 1.9 to 4.3; P ??.001). There was no significant difference in interlabial exposure at midline (7.1 mm vs 7.7 mm; CI, ?1.5 to 2.7; P ?=?.56) but a 56.4% improvement at the level of the canines (3.9 vs 6.1; CI, 0.1 to 4.3; P ?=?.04). The mean FAI when smiling was reduced from 9.1 mm to 4.5 mm (CI, ?8.0 to ?1.2; P ?=?.01). Dynamic wrinkling of the periorbital area with smiling was noted in 4 patients. Conclusions and Relevance ? The gracilis flap can be reliably designed as a functional double paddle muscle flap for a multivector facial reanimation. The multivector gracilis flap design is effective in improving all components of the smile display zone and has the potential for producing periorbital-wrinkling characteristic of a Duchenne smile. Level of Evidence ? 4.