Work

Cephalad Migration of Permanent Thread Fragments Following Nose Augmentation by Thread

Year: 2026

Type: article

Abstract: Summary: Thread lifting is commonly used for minimally invasive facial rejuvenation, yet thread migration remains a rare and underrecognized complication. Identifying the mechanical and material factors contributing to migration is essential for safe management. Permanent thread migration can occur years after implantation and may be overlooked when thread composition is unknown or inaccurately recalled. Awareness of barb biomechanics and muscular traction patterns is critical for timely diagnosis and appropriate management of similar complications. A 54-year-old woman presented with forehead irregularity and a palpable firm mass in the glabella five years after undergoing thread-based nasal augmentation. Surgical exploration revealed eight migrated thread fragments (2 blue and 6 transparent) located along the glabella and forehead. Nuclear magnetic resonance ( 1 H- and 13 C-NMR) analysis identified the material as a polypropylene–polylactic acid copolymer, indicating that permanent threads had been inserted. Repetitive contraction of the procerus and frontalis muscles, combined with unidirectional barb orientation, likely facilitated cephalad migration.

Source: Plastic & Reconstructive Surgery Global Open

DOI: 10.1097/gox.0000000000008230

Authors: Chang Woon Yun, Won Lee, Suyeon Lee, Kyu-Ho Yi

Institution: Yonsei University

Language: English

Topic: Facial Rejuvenation and Surgery Techniques

Subfield: Dermatology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,195