A low-dose biplanar X-ray imager has RSA level precision in total knee arthroplasty.
Background and purpose -- The low radiation biplanar X-ray imager (EOS imaging, Paris, France) scans patients in a weight-bearing position, provides calibrated images, and limits radiation, an asset for serial radiostereometric analysis (RSA) studies. RSA in vivo precision values have not been publi...
| Publicado en: | Acta Orthopaedica Vol. 94; pp. 555 - 560 |
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| Autores principales: | , , , , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Medical Journals Sweden AB
2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=174668840&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174668840 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17453674 1BVL jtl: Acta Orthopaedica issn: 17453674 maglogo: N pubinfo: dt: 2023 vid: 94 pid: 59195 pub: Medical Journals Sweden AB artinfo: ui: 174668840 174668840 174668840 10.2340/17453674.2023.19669 174668840 ppf: 555 ppct: 5 formats: fmt: @attributes: type: P tig: atl: A low-dose biplanar X-ray imager has RSA level precision in total knee arthroplasty. aug: au: HURRY, Jennifer K. SPURWAY, Alan J. LAENDE, Elise K. REHAN, Saad ASTEPHEN WILSON, Janie L. DUNBAR, Michael J. EL-HAWARY, Ron affil: Department of Orthopaedic Surgery, IWK Health Centre, Halifax, Nova Scotia, Canada sug: subj: Knee Joint Radiography Radiography Equipment and Supplies Radiation Dosage Radiostereometric Analysis Arthroplasty, Replacement, Knee Human In Vivo Studies Male Female Aged Weight-Bearing Image Processing, Computer Assisted Technology, Medical Aged: 65+ years Male Female ab: Background and purpose -- The low radiation biplanar X-ray imager (EOS imaging, Paris, France) scans patients in a weight-bearing position, provides calibrated images, and limits radiation, an asset for serial radiostereometric analysis (RSA) studies. RSA in vivo precision values have not been published for this type of imaging system, thus the goal of this study was to assess the precision of RSA in vivo utilizing a low radiation biplanar imager. Patients and methods -- At a mean of 5 years post-surgery (range 1.4-7.5 years), 15 total knee arthroplasty (TKA) participants (mean age 67 years at the time of imaging, 12 female, 3 male) with RSA markers implanted during index surgery were scanned twice at the same visit in the EOS imager. Precision of marker-based analysis was calculated by comparing the position of the implant relative to the underlying bone between the 2 examinations. Results -- The 95% limit of precision was 0.11, 0.04, and 0.15 mm along the x, y, and z axes, respectively and 0.15°, 0.20°, and 0.14° around the same axes. Conclusion -- This precision study has shown an in vivo RSA precision of ≤ 0.15 mm and ≤ 0.20°, well within published uniplanar values for conventional arthroplasty RSA, with the added benefit of weight-bearing imaging, a lower radiation dose, and without the need for a reference object during the scan. pubtype: Academic Journal doctype: diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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