Radiation dose reduction in digital plain radiography of the knee after total knee arthroplasty
Purpose: To reduce radiation exposure of frequently performed radiographs of the knee in follow-up of total-knee arthroplasty ensuring accurate assessment by using objective quality control criteria. Materials and Methods: In this prospective randomized study 278 radiographs of the knee in follow-up...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 2015
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| In: |
RöFo
Year: 2015, Volume: 187, Issue: 8, Pages: 685-690 |
| ISSN: | 1438-9010 |
| DOI: | 10.1055/s-0034-1399559 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1055/s-0034-1399559 Verlag, Volltext: https://www.thieme-connect.com/products/ejournals/html/10.1055/s-0034-1399559 
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| Author Notes: | J.K. Kloth, M. Tanner, W. Stiller, I. Burkholder, H.U. Kauczor, V. Ewerbeck, M.A. Weber |
| Summary: | Purpose: To reduce radiation exposure of frequently performed radiographs of the knee in follow-up of total-knee arthroplasty ensuring accurate assessment by using objective quality control criteria. Materials and Methods: In this prospective randomized study 278 radiographs of the knee in follow-up of total-knee arthroplasty were performed with standard and 37% reduced radiation dose. The evaluation of the plain-radiographs was conducted using the following criteria: bone-implant interface, implant-surface character, implant-implant discrimination and periarticular heterotopic ossification. Two radiologists evaluated these criteria using a score ranging from 1 (definitely assessable) to 4 (not assessable). If a single criterion had been evaluated with a score ≥3 or more than 2 criteria with ≥2 points, the radiograph was score das „not assessable“. The study was designed as non-inferiority-trial. Results: 100% of examined radiographs were scored as assessable, hence no statistical inferiority between the examinations with standard and reduced dose could be observed. Singular assessment of the defined criteria was likewise dose-independent. Conclusion: Plain-radiography of the knee following total-knee arthroplasty can be performed with 63% of standard dose without loss of diagnostic validity. Key points: • Due to the non-inferiority of digital radiographs of the knee joint after total-knee arthroplasty done with 37% reduced image receiver dose we recommend the tested speed class of SC 800 as a new reference value for digital radiographs with this indication. Citation Format: • Kloth JK, Tanner M, Stiller W etal. Radiation Dose Reduction in Digital Plain Radiography of the Knee after Total Knee Arthroplasty. Fortschr Röntgenstr 2015; 187: 685-690 |
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| Item Description: | Gesehen am 16.02.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1438-9010 |
| DOI: | 10.1055/s-0034-1399559 |