Reduced-dose computed tomography is the most accurate method to measure ceramic hip resurfacing cup version
| Autor: | Alvise Saracco, Alberto Grassi, Matteo Romagnoli, Stefano Zaffagnini, Justin Cobb, Kartik Logishetty, Lawrence Camarda |
|---|---|
| Přispěvatelé: | Saracco A., Grassi A., Romagnoli M., Camarda L., Logishetty K., Zaffagnini S., Cobb J. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
Ceramics Arthroplasty Replacement Hip medicine.medical_treatment Reproducibility of Result Computed tomography CT scout view Radiation Dosage Hip joint replacement 030218 nuclear medicine & medical imaging 03 medical and health sciences CT/low dose 0302 clinical medicine Retrospective Studie Medical imaging medicine X-rays/radiographs Humans Hip Prosthesi Radiology Nuclear Medicine and imaging Pelvis Retrospective Studies medicine.diagnostic_test X-rays/radiograph business.industry Reproducibility of Results General Medicine Middle Aged Hip joint/cup version Ceramic Reduced dose Hip resurfacing Hip joint/replacement Radiation exposure Tomography x ray computed medicine.anatomical_structure 030220 oncology & carcinogenesis Female Hip Joint Hip Prosthesis Hip joint/resurfacing Tomography X-Ray Computed Nuclear medicine business Human |
| Popis: | Background: A precise assessment of cup version after hip resurfacing is generally requested, especially in clinical trials or in case of complications. Aims: 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. Methods: 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. Results: 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). Conclusions: 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. |
| Databáze: | OpenAIRE |
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