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Research Journal of Pharmacy and Technology
Year : 2018, Volume : 11, Issue : 11
First page : ( 4846) Last page : ( 4849)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2018.00881.8

Effectiveness of Cogged Polydioxanone Thread for Aging Lower Face Improvement

Kim Ji-ye1, Choi Jin-hee1, Kim Sug-won1, Chung Yoon-kyu1, Song Mi-hee2, Kim Ki-yeong2, Kim Jun-tae2, Choi An-yul3, Jeong Jin-hyoung3, Ryu Ok-su3, Jo Jae-hyun3, Lee Sang-sik3,*

1Department of Plastic and Reconstructive Surgery, Yonsei University, Wonju College of Medicine, Wonju, Korea

2Department of Medical Device R&D Center, Hyundaemeditech CO. LTD. Wonju, Korea

3Ph. D Department of Biomedical Engineering, Catholic Kwandong University, Gangneung, Korea

*Corresponding Author E-mail: Gen80@yonsei.ac.kr, qa@hyundaemed.co.kr, lsskyj@cky.ac.kr.

Online published on 30 January, 2019.



Skin rejuvenation with laser is effective method to manage the skin aging process, however, it need repetitive procedures within short period. To compensate this shortcoming of laser, thread for facial tissue fixation is an excellent alternative of laser in skin rejuvenation. In this study, we evaluated the effectiveness of cogged polydioxanone(PDO) thread in improvement the lower face line and jowl.

Methods/Statistical analysis

A total of 55 consecutive patients with mild to moderate wrinkles were enrolled in the study. They underwent facial lifting with cogged thread (Secret Cog®, HyundaeMeditech, Korea) to correct lower facial line. Follow-up assessments were performed at 1 week, 4weeks and 3 months after procedure. The efficacy was rated by the two independent plastic surgeons using the Wrinkle Severity Rating Scale and patients’ satisfaction was assessed using the Visual Analog Scale. Post-operative complications were also recorded.


The patients showed prominent improvements after the procedure. The numbers of patient, presented WSRS difference greater than 1 were 53 (96.4%) on the left cheek and 54 (98.2%) on the right cheek. All patients achieved symmetrical facial state at all three post-operative visits. The mean satisfaction score of the patients was 6.6±2.6 on week 12. It also improved asymmetrical facial wrinkles.


Cogged PDO is excellent alternative method in lower face rejuvenation. Although it cannot substitute the face lift surgery, however, in mild to moderate lower face wrinkle, it can improve the lower face contour with simple procedure.



Theread Lift, Cog, Polydioxanone, Wrinkle Improvement, Skin aging.


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