ArticlePlastic and reconstructive surgery. Global open2025
Efficacy and Safety of Incobotulinumtoxin-A for Trapezius Muscle Reduction: Quantitative Evaluation With Imaging Studies.
Article in Plastic and reconstructive surgery. Global open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Bilateral trapezius muscle hypertrophy can cause both aesthetic concerns and physical discomfort. This study aimed to objectively assess the clinical efficacy and safety of incobotulinumtoxin-A (INCO) injections in patients with bilateral trapezius muscle hypertrophy. Methods: This single-center retrospective study included 22 patients with bilateral trapezius muscle hypertrophy who received INCO injections and were followed up at 1, 3, and 6 months after treatment. Evaluation methods included clinical photography, imaging analysis with ultrasound and 3-dimensional computed tomography, and the Global Aesthetic Improvement Scale. Results: Photographic evaluations revealed significant reductions in surface area at 1 month (28.82% ± 3.93%), 3 months (26.83% ± 3.60%), and 6 months (28.74% ± 3.30%), compared with baseline (all Conclusions: INCO injections effectively reduced trapezius muscle size, with sustained results up to 6 months posttreatment. This study supports the use of INCO as a safe and effective option for managing trapezius hypertrophy.
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