ArticlePlastic and reconstructive surgery. Global open2026
Enhancing Lip Augmentation Safety and Aesthetics Through 11-Point Injection Technique and Sonographic Vascular Mapping.
Article in Plastic and reconstructive surgery. Global open, 2026. 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: Lip augmentation using hyaluronic acid fillers is a popular cosmetic procedure; however, vascular complications remain a concern. The 11-point injection technique (11-PIT), combined with sonographic vascular mapping, enhances safety by guiding precise filler placement while achieving optimal aesthetic outcomes. Methods: A prospective study was conducted on 25 female patients (21-65 y) undergoing lip augmentation with Cleviel Volume hyaluronic acid filler. High-frequency ultrasound (Aplio-i700, Canon Medical Systems) was used to measure the depth of superior and inferior labial arteries at 6 key points before injection. The 11-PIT was performed to enhance specific lip landmarks while minimizing vascular risks. Postprocedure assessments included 3-dimensional imaging for volume changes, sonographic analysis for lip thickness and projection, and Global Aesthetic Improvement Scale surveys at 1, 3, and 6 months. Results: The mean arterial depth at the midline of the upper and lower lips was 2.54 ± 1.89 and 1.91 ± 1.58 mm, respectively, increasing laterally. Lip volume increased immediately postinjection (0.96 ± 0.24 mL) and gradually declined to 0.58 ± 0.17 mL at 6 months. Upper lip thickness increased from 8.94 ± 1.16 to 10.98 ± 1.03 mm at 1 month before regressing. Lip corner elevation was measured at 1.21 ± 0.35 mm at 1 month. Global Aesthetic Improvement Scale scores remained favorable (3.28 ± 0.75 at 6 mo). No major complications occurred. Conclusions: The 11-PIT, combined with sonographic vascular mapping, provides a safe and effective approach for lip augmentation. This method minimizes vascular risks, enhances aesthetic outcomes, and offers reproducible results, supporting its adoption for safer lip enhancement procedures.
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