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Hip dysplasia is not uncommon but frequently overlooked: a cross-sectional study based on radiographic examination of 1,870 adults

Acta orthopaedica, 2021-10, Vol.92 (5), p.575-580 [Peer Reviewed Journal]

2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group, on behalf of the Nordic Orthopedic Federation. 2021 ;2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group, on behalf of the Nordic Orthopedic Federation. 2021 The Author(s) ;ISSN: 1745-3674 ;EISSN: 1745-3682 ;DOI: 10.1080/17453674.2021.1936918 ;PMID: 34238106

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  • Title:
    Hip dysplasia is not uncommon but frequently overlooked: a cross-sectional study based on radiographic examination of 1,870 adults
  • Author: Leide, Rebecka ; Bohman, Anna ; Wenger, Daniel ; Overgaard, Søren ; Tiderius, Carl Johan ; Rogmark, Cecilia
  • Subjects: Clinical Medicine ; Klinisk medicin ; Medical and Health Sciences ; Medicin och hälsovetenskap ; Orthopedics ; Ortopedi
  • Is Part Of: Acta orthopaedica, 2021-10, Vol.92 (5), p.575-580
  • Description: Background and purpose - Hip dysplasia in adults is a deformity in which the acetabulum inadequately covers the femoral head. The prevalence is sparingly described in the literature. We investigated the prevalence in Malmö (Sweden) and assessed whether the condition was recognized in the radiology reports. Subjects and methods - All pelvic radiographs performed in Malmö during 2007-2008 on subjects aged 20-70 years with a Swedish personal identity number were assessed. 1,870 digital radiographs were eligible for analysis. The lateral center-edge angle (LCEA) and acetabular index angle (AIA) were measured. Hip dysplasia was defined as an LCEA ≤ 20°. Intraclass correlation coefficients (ICC) for intra-observer measurements ranged from 0.87 (AIA, 95% CI 0.78-0.93) to 0.98 (LCEA, CI 0.97-0.99). Results - The prevalence of hip dysplasia (LCEA ≤ 20°) was 5.2% (CI 4.3-6.3), (98/1,870). There was no statistically significant difference between the sexes for either prevalence of hip dysplasia or mean LCEA. The mean AIA was 0.9° (CI 0.3-1.3) higher in men (4.1 SD 5.5) compared with women (3.2 SD 5.4). The radiologists had reported hip dysplasia in 7 of the 98 cases. Interpretation - The prevalence of hip dysplasia in Malmö (Sweden) is similar to previously reported data from Copenhagen (Denmark) and Bergen (Norway). Our results indicate that hip dysplasia is often overlooked by radiologists, which may influence patient treatment.
  • Publisher: Taylor & Francis
  • Language: English
  • Identifier: ISSN: 1745-3674
    EISSN: 1745-3682
    DOI: 10.1080/17453674.2021.1936918
    PMID: 34238106
  • Source: Open Access: PubMed Central
    Geneva Foundation Free Medical Journals at publisher websites
    Alma/SFX Local Collection
    SWEPUB Freely available online
    Taylor & Francis (Open access)
    DOAJ Directory of Open Access Journals
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