A reliable DEXA measurement technique for metal-on-metal hip resurfacing.

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  • Additional Information
    • Source:
      Publisher: Medical Journals Sweden AB Country of Publication: Sweden NLM ID: 101231512 Publication Model: Print Cited Medium: Print ISSN: 1745-3674 (Print) Linking ISSN: 17453674 NLM ISO Abbreviation: Acta Orthop Subsets: MEDLINE
    • Publication Information:
      Publication: 2022- : Uppsala, Sweden : Medical Journals Sweden AB
      Original Publication: Basingstoke, Hampshire, UK : Taylor & Francis, c2005-
    • Subject Terms:
      Arthroplasty, Replacement, Hip*/methods ; Bone Density*; Absorptiometry, Photon/*methods; Adult ; Aged ; Female ; Femur Neck/pathology ; Humans ; Male ; Middle Aged ; Prosthesis Design ; Prosthesis Failure
    • Abstract:
      Introduction: Dual energy X-ray absorptiometry (DEXA) has been used to measure bone mineral density (BMD) around total hip prostheses. With the recent increase in the use of metal-on-metal hip resurfacing, such as the Birmingham hip resurfacing (BHR), we aimed to produce a reliable method of measuring bone density around a metal-on-metal hip resurfacing.
      Methods: We performed DEXA scans on 5 patients (7 BHRs), who had undergone resurfacing with the BHR within the past 2 years. A zonal reporting technique was devised and evaluated.
      Results: The intraclass correlation (i.e. the correlation between any two assessments of one region of interest) was 0.997, with an overall coefficient of variation of 5%.
      Interpretation: We have designed and demonstrated a safe, noninvasive and highly reproducible method for interpreting and reporting the results of DEXA scanning of BHR implants in vivo. We will now use this method to prospectively study our BHR population to assess the changes in bone density following BHR within the femoral neck. This method may add to the current techniques available for detection of impending failure.
    • Publication Date:
      Date Created: 20050816 Date Completed: 20050816 Latest Revision: 20190516
    • Publication Date:
      20240829
    • Accession Number:
      10.1080/00016470510030544
    • Accession Number:
      16097541