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Reduced-dose computed tomography is the most accurate method to measure ceramic hip resurfacing cup version.
- Source :
-
European Journal of Radiology . Jul2020, Vol. 128, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- <bold>Background: </bold>A precise assessment of cup version after hip resurfacing is generally requested, especially in clinical trials or in case of complications.<bold>Aims: </bold>To identify which diagnostic imaging modality, between AP pelvis X-rays, the AP Pelvis CT Scout image and reduced-dose axial CT scan, is the most precise to assess cup version of an all-ceramic hip resurfacing implant in a first-in-human clinical trial.<bold>Methods: </bold>We retrospectively assessed the cup version of the first 20 patients who underwent an experimental all-ceramic hip resurfacing on AP pelvis X-rays (0.8 mSv of radiation), AP pelvis CT scout images (0.016 mSv) and axial CT slices performed using a reduced dose protocol (0.3 mSv). The intra-observer and inter-observer reliabilities were calculated.<bold>Results: </bold>Reduced dose Pelvis CT scan was the most precise imaging modality to detect cup version (Pearson Correlation Coefficient, PCC = 0.98, p < 0.001). The AP Pelvis CT Scout image was found to be sufficient to measure cup version within an acceptable margin of tolerance (mean difference ± 4.7° from pelvis CT scan) and highly correlated to axial pelvis CT scan measurements (PCC 0.97, p < 0.001). Analysis of cup version from AP X-rays poorly correlated with measurements from Pelvis CT (PCC 0.59, p = 0.006).<bold>Conclusions: </bold>Due to lower radiation exposure and highest accuracy, reduced dose CT is a valid modality to measure acetabular cup version after ceramic hip resurfacing. Plain X-rays are not accurate nor precise to measure version, whereas high agreement of measurements between AP Pelvis CT Scout and axial pelvis CT scan was found. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0720048X
- Volume :
- 128
- Database :
- Academic Search Index
- Journal :
- European Journal of Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 143766325
- Full Text :
- https://doi.org/10.1016/j.ejrad.2020.109040