Objectives: 1. Cogged molding type PDO thread and practical avoiding frontal branch of superficial temporal artey by Doppler ultrasound, published article DOI: 10.1111/jocd.13240
2. Multiple twisted PDO thread to correct infraorbital groove, published article DOI:10.1111/jocd.13269
Introduction: 1. Although there are various techniques of thread lifting, most of these techniques require anchoring of the threads at the temple area. However, the frontal branch of the superficial temporal artery (FBrSTA) is located in the temple area and a detour pathway should be created for thread insertion to avoid vascular complications.
2. The infraorbital groove can be corrected by lower blepharoplasty, microfat grafting, and soft tissue filler injection. Recently, multiple twisted polydioxanone threads were developed for facial rejuvenation.
Materials / method: 1. Doppler ultrasound was used to detect the FBrSTA pathway, and the relationship between the hairline and the FBrSTA was analyzed. After confirming the arterial pathway, thread lifting was performed in patients, and complications related to the entry point and insertion of the threads were evaluated. Patient satisfaction was evaluated immediately after the procedure and 3 months later.
2. From March 2018 to June 2019, 40 patients (mean age: 43.4 years) underwent transcutaneous multiple twisted thread insertion to correct the infraorbital groove. Three threads were inserted
Results: 1. This study included 50 patients (45 women and 5 men; age: 51 [range 26-71] years) who underwent thread lifting in a single institution from January to May 2019 after Doppler ultrasound-guided detection of the FBrSTA. No vascular complications were noted in all patients
2. The mean Barton grade improved significantly (P<0.001) without decline throughout the 12-week period. Improvement was found in all patients who were designated with a score >2 (“improved”). More than 77.5% of the patients were satisfied with the outcomes.
Conclusion: 1. Our findings suggest that Doppler ultrasound can be used to detect the FBrSTA at the temple area to avoid vascular complications during thread lifting.
2. The findings indicate the benefits of the multiple twisted polydioxanone thread insertion in the treatment of patients with infraorbital groove without septal protrusion. This evaluation raised no major safety concerns.
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这项工作的完成感谢以下机构的支持： N finders, Seoul, Korea for providing PDO threads to study
