An 84-year-old man undergoes incision and drainage for an infected total knee arthroplasty. Source: Lancet *This case is from Docplexus editorial team for educative purpose only Image description: Radiograph and histology of an 84-year-old man (A) Radiograph of both knees showing complete obliteration of the joint space with severe erosive changes and valgus alignment (B) of the left knee at last follow-up (C) Histopathological section of synovial tissue from total knee arthroplasty; 20× magnification.
The green arrow shows a non-necrotising granuloma.
