Abstract | INTRODUCTION: In patients who have undergone a total joint replacement, any mass occurring in or adjacent to the joint needs thorough investigation and a wear debris-induced cyst should be suspected. CASE PRESENTATION: An 81-year-old man presented with a painful and enlarging mass at the popliteal fossa and calf of his right knee. He had had a total right knee replacement seven years previously. Plain radiographs showed narrowing of the medial compartment. Magnetic resonance imaging showed a cystic lesion at the postero-medial aspect of the knee joint mimicking popliteal cyst or soft tissue sarcoma. Fine needle aspiration was non-diagnostic. A core-needle biopsy showed metallosis. Intraoperative findings revealed massive metallosis related to extensive polyethylene wear, delamination and deformation. Revision knee and patella arthroplasty was carried out after a thorough debridement of the knee joint. CONCLUSION:
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Authors | Andreas F Mavrogenis, George N Nomikos, Vasileios I Sakellariou, George I Karaliotas, Panayiotis Kontovazenitis, Panayiotis J Papagelopoulos |
Journal | Journal of medical case reports
(J Med Case Rep)
Vol. 3
Pg. 9304
(Nov 29 2009)
ISSN: 1752-1947 [Electronic] England |
PMID | 20062793
(Publication Type: Journal Article)
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