Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
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Case Report

Volume 7, Number 3, March 2016, pages 90-93

Diagnosis and Treatment of Joint Fluid Accumulation After Total Knee Arthroplasty in Rheumatoid Arthrosis Patients: A Report of Four Patients


Figure 1.
Figure 1. Enhanced computed tomography (CT) of the left knee joint at the initial visit (axial section). CT showed the accumulation of joint fluid and a contrasted, thickened synovium.
Figure 2.
Figure 2. Antero-posterior and lateral radiographs of the left knee joint at 1 year and 2 months after the initial visit (a, b), and 3 months postoperatively (c, d). Although plain radiographs initially showed erosion around the tibial implant (arrows) (a, b), it disappeared 3 months postoperatively (b).
Figure 3.
Figure 3. Arthroscopy of the left knee showed that white and red synovium filled the joint.
Figure 4.
Figure 4. Histopathological findings on Villanueva bone staining. Original magnification × 40. Fibrin deposits, a synovium with degenerative necrosis, hyperplastic capillaries, and lymphocyte infiltration were observed. There was no evidence of bacteria.