Korean J Dermatol.
2024 Jun;62(5):269-278.
Efficacy and Safety of Nasolabial Fold Correction Using Collagen-Stimulating Filler: A Systematic Review and Meta-Analysis
- Affiliations
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- 1Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
Abstract
- Background
Nasolabial folds (NLFs) constitute a pivotal aspect of facial aesthetics and are the primary focal points in facial rejuvenation procedures. Collagen-stimulating fillers have gained popularity due to their long-lasting effects and biocompatibility.
Objective
This study aimed to comprehensively evaluate the therapeutic efficacy and safety profiles of collagenstimulating fillers for NLF correction.
Methods
A thorough search of the databases including PubMed, Embase, and Cochrane was performed. Randomized controlled trials published between 2000 and 2023 on the treatment outcomes of collagen-stimulating fillers for NLFs were included. A systematic review and meta-analysis were conducted using the Wrinkle Severity Rating Scale (WSRS), Global Aesthetic Improvement Scale (GAIS), and adverse events.
Results
Among the 144 pertinent studies, nine met the inclusion criteria, including 299 participants for polycaprolactone (PCL), 291 for poly L-lactic acid (PLLA), and 382 for calcium hydroxylapatite (CaHA). PCL showed significantly higher improvement in GAIS (risk ratio [RR], 3.14; 95% confidence interval [CI], 2.29∼4.30; p＜0.001) and WSRS (mean difference, 0.71; 95% CI, 0.36∼1.06; p＜0.001) at a 12-month interval compared with hyaluronic acid (HA). CaHA showed marked 12-month GAIS improvement versus HA (RR, 1.51; 95% CI, 1.21∼1.88; p＜0.001). PLLA exhibited superior wrinkle improvement compared with HA at week 24, especially in individuals under 52 years of age. No severe complications occurred.
Conclusion
Collagen-stimulating fillers have the potential to be safe, effective, and long-lasting options for NLF correction. Nevertheless, due to the limited data and heterogeneity among the included studies, cautious interpretation is required. Further high-quality clinical trials are required to validate these findings.
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