Authors: Mir SadatAli Quamar Azzam Mohammed Bluwi Abdallah S AlUmran
Publish Date: 2009/11/21
Volume: 468, Issue: 8, Pages: 2284-2287
Abstract
Biodegradable interference screws in anterior cruciate ligament ACL reconstruction have gained popularity because of their similar or superior fixation strength in comparison to metallic interference screws and because they do not cause imaging artifacts and do not need to be removedWe report the case of a 23yearold man who presented with slowly progressive firm swelling of 2 months’ duration at the site of the tibial tunnel 3 years after ACL reconstruction using a biodegradable interference screw After curettage and débridement the material was sent for histopathologic examination which was reported as a fibroxanthomaReported complications are osteolysis around the screw allergic reaction sterile abscess formation ganglion cyst formation and intraarticular migration A fibroxanthoma consists of fibroblasts and mononuclear or multinucleated cells with large lipidfilled histiocytes foam cells The cells are negative for S100 and keratin and positive for antihuman macrophage marker HAM56Each author certifies that his or her institution approved the reporting of this case report that all investigations were conducted in conformity with ethical principles of research and that informed consent for participation in the study was obtained
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