Severe aseptic synovitis of the knee after biodegradable internal fixation

Abstract
Biodegradable rods made of polyglycolide (Dexon ®, Biofix ®) or lactide-glycolide copolymer (Vicryl ®) have been used for the past 5 years for internal fixation of a variety of fractures and osteotomies (Böstman et al. 1989, 1990b). Experience from using such rods for fixation of intraarticular osteochondral lesions seems to be less extensive. We report a case of severe synovial reaction to biodegradable rods used for fixation of osteochondritis dissecans of the knee and discuss possible reasons for the increased risk of foreign-body reactions when these rods are used intraarticularly.

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