Article ID Journal Published Year Pages File Type
6209268 The Journal of Arthroplasty 2014 5 Pages PDF
Abstract

Large bone defect around total knee prostheses is among the most critical challenges in revision surgery. However, it is difficult to detect bone defects around a prosthesis in early stage. We compared the efficacy of the detection of small bone defects between fluoroscopically guided plain radiography, CT, MRI, and a novel tomographic technique (tomosynthesis) using the six pig knee models. No bone defects were detected with plain radiography and MRI. The sensitivity and specificity of CT were 61.5% and 64.1%, respectively. The sensitivity and specificity of tomosynthesis were 85.4% and 87.2%, respectively. The radiation dose of tomosynthesis was 6% of that of CT. The cost of tomosynthesis was 28% of that of CT. Tomosynthesis was superior in terms of diagnosis, radiation dose, and cost.

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