{
  "abstract": "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 (¹H- and ¹³C-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.",
  "abstract_shown": true,
  "affiliations": [
    "From the View Aesthetic Plastic Surgery Clinic, Seoul, Republic of Korea.",
    "Yonsei E1 Plastic Surgery Clinic, Anyang, Republic of Korea.",
    "Medical Research Inc., Seoul, Republic of Korea.",
    "You and I Clinic, Seoul, Republic of Korea."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Chang Woon Yun"
    },
    {
      "affs": [
        1
      ],
      "name": "Won Lee"
    },
    {
      "affs": [
        2
      ],
      "name": "Suyeon Lee"
    },
    {
      "affs": [
        3
      ],
      "name": "Kyu-Ho Yi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7tmq5sq2whqff.bib",
  "cited_by": 0,
  "doi": "10.1097/gox.0000000000008230",
  "fulltext_url": "https://europepmc.org/articles/PMC13750868",
  "id": "7tmq5sq2whqff",
  "issns": [
    "2169-7574"
  ],
  "landing_url": "https://europepmc.org/article/MED/43012028",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2708|Facial Rejuvenation and Surgery Techniques"
    ]
  ],
  "openalex": "W7225714312",
  "pdf_url": "https://europepmc.org/articles/PMC13750868?pdf=render",
  "pmcid": "PMC13750868",
  "pmid": "43012028",
  "published": "2026-11-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7tmq5sq2whqff.ris",
  "sources": [
    {
      "first_seen": "2026-11-12T15:23:59Z",
      "native_id": "MED:43012028",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/43012028"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "journal-openalex:2746|Reconstructive Surgery and Microvascular Techniques",
      "subfield": "surgery"
    }
  ],
  "title": "Cephalad Migration of Permanent Thread Fragments Following Nose Augmentation by Thread.",
  "title_text": "Cephalad Migration of Permanent Thread Fragments Following Nose Augmentation by Thread.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-13T15:20:21Z",
  "url": "https://research.draconitic.com/paper/7tmq5sq2whqff",
  "venue": "Plastic and reconstructive surgery. Global open",
  "versions": []
}