Review Question - QID 217996

A 71-year-old man presents to the clinic for his annual follow-up after undergoing a total knee replacement 7 years prior. He has been very satisfied with his knee overall until when he noticed his incisional scar began leaking fluid two months ago. His primary care physician put him on antibiotics, which helped stop the drainage for a couple of weeks. However, one week after antibiotic completion he continues to endorse draining fluid from his incisional site. A clinical image of his knee is shown in Figure A. A cotton-tipped swab confirms the wound traces to the intra-articular space. Which of the following are the next best steps in management?