Imaging periprosthetic osteolysis around total knee arthroplasties using a human cadaver model
| Autor: | Nammon Yaikwavong, Roumen Stamenkov, Donald W. Howie, Andrew J. MacDonald, Lucian B. Solomon, S D Neale, Mary J. Moss |
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| Rok vydání: | 2011 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty Osteolysis medicine.medical_treatment Radiography Total knee arthroplasty In Vitro Techniques Sensitivity and Specificity Total knee Cadaver medicine Humans Orthopedics and Sports Medicine Four-Dimensional Computed Tomography Arthroplasty Replacement Knee medicine.diagnostic_test business.industry X-Rays Magnetic resonance imaging medicine.disease Arthroplasty Magnetic Resonance Imaging Radiology business Knee Prosthesis |
| Zdroj: | The Journal of arthroplasty. 27(6) |
| ISSN: | 1532-8406 |
| Popis: | We examined the sensitivity and accuracy of measuring osteolysis around total knee arthroplasty (TKA) on radiographs, computed tomography (CT), and magnetic resonance imaging (MRI) in a cadaver model. Fifty-four simulated osteolytic defects ranging from 0.7 to 14 cm(3) were created in 6 cadaver knees implanted with either a cemented or an uncemented TKA. Three blinded investigators assessed the presence, location, and volume of defects on radiographs and CT and MRI scans with metal reduction protocols. Both CT and MRI had significantly higher sensitivities and specificities than did plain radiographs (P < .005). Overall, there was no difference in the accuracy of defect volume measurements between CT and MRI (P = .574). This study demonstrates the limitations of radiographs and the high sensitivity and specificity of both CT and MRI in assessing osteolysis around TKA. |
| Databáze: | OpenAIRE |
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