RESUMO
BACKGROUND: Attempts at dynamic reconstruction of the upper eyelid either by neurotization or direct muscle replacement have been scarce. Substitution of the levator palpebrae superioris muscle requires the use of extremely small and pliable structures. As a proof of concept/pilot study, we present a consecutive series of patients who underwent blepharoptosis correction using the neurotized omohyoid muscle graft. METHODS: Retrospective analysis of patients receiving a neurotized omohyoid muscle graft for levator palpebralis substitution between January and December 2019. RESULTS: Five patients were operated (2 male, 3 female); median age was 35.5 years. Median palpebral aperture was 0 mm and levator function was< 1 mm in all cases. Median denervation time for the levator muscle was 9 years. All surgeries were uneventful, and no postoperative complications were seen. Twelve months after the procedure, all patients presented with adequate palpebral aperture on activation of the spinal nerve. Median palpebral aperture was 6.5 mm Postoperative electromyography revealed muscle contraction when stimulation was applied to the spinal nerve. CONCLUSION: This study introduces the concept of severe blepharoptosis correction using the omohyoid muscle. We believe that with time and further technical refinements it could become an invaluable tool in eyelid reconstruction surgery.
