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CRPS after unicompartmental knee arthroplasty: A case report

A 59-year-old female presented with pain, warmth, erythema, and swelling over the medial aspect of her left knee that began after medial unicompartmental arthroplasty. Exam fulfilled the Budapest criteria for diagnosis of Complex Regional Pain Syndrome (CRPS) type 2. Topical compound cream and physical therapy were prescribed, and symptoms were improved at follow up visit. CRPS localized to the knee after unicompartmental arthroplasty has not been reported in the literature to date, therefore we report a case of CRPS after unicompartmental knee arthroplasty.