Facial Plastic Surgery & Aesthetic Medicine最新文献

Background: For auricular reconstruction surgery using autologous costal cartilage, younger patients typically have a limited amount of costal cartilage available. Objective: We introduce a cartilage-saving technique for fabricating the tragus and antitragus, and evaluate its effectiveness based on aesthetic score and complications. Methods: For tragus fabrication, the residual part of the seventh costal cartilage was reoriented by 90° to increase its height and carved into a seagull-shaped structure. The antitragus was constructed by bending the antihelix and stabilizing it on the broadened base frame. Postoperative aesthetic outcomes and complications were documented and analyzed. Results: This study included a total of 658 patients with lobule-type microtia, of whom 356 (54.1%) were male and 302 (45.9%) were female. The average age was 6.5 ± 0.7 years, and the average follow-up period was 13.6 ± 3.5 months. The average aesthetic outcome score was 9.0 ± 0.7. Wound dehiscence at the tragus was seen in four patients, while circulation disturbance at the incisura intertragica area was noted in six patients. Conclusions: This cartilage-sparing technique demonstrated effectiveness in shaping aesthetic tragus and antitragus.

Background: The ability to smile is impaired in patients with facial palsy, and objective parameters assessing smile symmetry to guide treatment are not well elucidated. Objective: This study seeks to identify objective facial measurements that relate smile recognition, perception of smile asymmetry, and perceived emotions from photographs of individuals with asymmetrical smiles compared with control photographs of individuals without smile asymmetry as measured by a photograph analysis application. Methods: Fifty-six photographs of smiles were categorized using objective perioral morphometric measurements (Emotrics). A photographic survey of these smiles was disseminated with queries regarding smile symmetry, smile recognition, and emotion perception. Generalized linear mixed modeling (GLMM) was performed to assess the effect of facial measurements on survey responses. Results: From 756 survey responses, smile symmetry predicted for smile recognition (F = 1084, p < 0.001) and emotion perception (F = 422, p < 0.001). Correlation analysis and GLMM identified three parameters (lower lip height, commissure position, and commissure height) that predicted smile recognition (F = 1040, p < 0.001), emotion perception (F = 976, p < 0.001), and symmetry (F = 1248, p < 0.001). Lower lip height (β = -57.84, p < 0.001) and commissure position (β = -29.41, p < 0.001) were the most significant drivers. Conclusions: Correcting lower lip height and commissure position represents efficacious clinical benchmarks for improving smile recognition by reducing smile asymmetry and conveying negative emotions.

Background: Chemodenervation is widely used for management of synkinesis in patients with facial palsy, but there is limited objective data assessing treatment effect. Objective: To measure the eyelid palpebral fissure height at rest and during movement after chemodenervation of the orbicularis oculi muscle among patients with ocular synkinesis, as measured on photographs with computerized facial analysis application. Methods: A retrospective review of patients who underwent initial chemodenervation to the orbicularis oculi for synkinesis was conducted from January 1, 2015, and July 26, 2023. Changes in palpebral height following injection "at rest" and during "pucker" (activation of ocular synkinesis) were calculated using the Emotrics+ program. Results: Nineteen patients were identified: 78.9% female, 73.7% White, and a mean age of 49.74  ±  13.62yrs. They received a mean of 11.45  ±  3.57 units to the orbicularis oculi. A mean 37.63  ±  11.21 days elapsed between injection and postinjection photograph. Palpebral fissure height increased by a mean of 1.16  ±  1.86 mm while "at rest" (p = 0.014) and 2.31  ±  1.35 mm during "pucker" (p < 0.01). Injected dose was not associated with changes in palpebral fissure height "at rest" (p = 0.141) or during "pucker" (p = 0.125). Conclusions: Our findings suggest that chemodenervation of the orbicularis oculi improves palpebral fissure height in ocular synkinesis, more so during dynamic motion.