{
  "abstract": "BackgroundPolyethylene liner dissociation is an uncommon but potentially severe complication of total hip arthroplasty (THA). Loss of the intended bearing interface can permit direct femoral-head–acetabular-shell articulation, with progressive shell wear, metallic debris deposition, and acetabular bone loss.Case presentationA 73-year-old woman developed left hip pain after an accidental sprain in February 2025, having reported no hip-related symptoms after primary THA in 2020. The index Mindray implants included a 48-mm acetabular shell, a highly cross-linked polyethylene liner, a 28-mm femoral head, and a size-10 stem. Radiographs and CT with three-dimensional volume-rendered reconstruction were used to assess acetabular bone loss, classified as Paprosky type IIA. Revision revealed polyethylene liner dissociation, catastrophic shell wear-through, extensive black metallic debris deposition, and a well-fixed femoral stem. Partial locking-tab damage was identified on gross inspection, but formal retrieval analysis was not performed. Acetabular revision with iliac-crest autografting was performed while retaining the femoral stem. At 6 months, the Harris Hip Score improved from 46 to 82, and radiographs showed a stable acetabular component with evidence of graft incorporation.ConclusionThis case illustrates the potential for clinically occult progression from liner dissociation to catastrophic head-on-shell wear. Gross locking-tab damage did not establish the initiating failure mechanism. Component-preserving acetabular revision was associated with a favorable short-term clinical and radiographic outcome in this patient.",
  "abstract_shown": true,
  "affiliations": [
    "epartment of Joint Surgery, Affiliated Hospital of Hebei University, Baoding, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Weida Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhixing Liang"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhuangzhuang Dong"
    },
    {
      "affs": [
        0
      ],
      "name": "Qian Sun"
    },
    {
      "affs": [
        0
      ],
      "name": "Yu Hou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b55qadk0821yd.bib",
  "cited_by": 0,
  "doi": "10.3389/fsurg.2026.1979979",
  "fulltext_url": "https://www.frontiersin.org/articles/10.3389/fsurg.2026.1979979/full",
  "id": "b55qadk0821yd",
  "issns": [
    "2296-875X"
  ],
  "landing_url": "https://doi.org/10.3389/fsurg.2026.1979979",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "RD1-811"
    ],
    [
      "openalex",
      "2746|Orthopaedic implants and arthroplasty"
    ]
  ],
  "openalex": "W7223368133",
  "pdf_url": "https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2026.1979979/pdf",
  "pmcid": "PMC13741362",
  "pmid": "42997402",
  "published": "2026-10-23",
  "publisher": "Frontiers Media S.A.",
  "ris": "https://research.draconitic.com/paper/b55qadk0821yd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:11Z",
      "native_id": "fb156de40e2240f78509c53deaddef4f",
      "source": "doaj",
      "url": "https://doi.org/10.3389/fsurg.2026.1979979"
    },
    {
      "first_seen": "2026-11-09T15:20:41Z",
      "native_id": "MED:42997402",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42997402"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Orthopaedic implants and arthroplasty",
      "subfield": "surgery"
    }
  ],
  "title": "Catastrophic acetabular wear following polyethylene liner dissociation with locking-tab damage after total hip arthroplasty: a case report",
  "title_text": "Catastrophic acetabular wear following polyethylene liner dissociation with locking-tab damage after total hip arthroplasty: a case report",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T15:20:41Z",
  "url": "https://research.draconitic.com/paper/b55qadk0821yd",
  "venue": "Frontiers in Surgery",
  "versions": []
}