Service for Bone Infections, Valdoltra Orthopaedic Hospital, Ankaran, Slovenia.
JBJS Case Connect. 2020 Jul-Sep;10(3):e20.00043. doi: 10.2106/JBJS.CC.20.00043.
A 59-year-old man with previously well-functioning partial knee replacement was admitted with a warm, swollen, and painful knee. The clinical presentation was consistent with prosthetic joint infection (PJI), but the synovial fluid analysis was negative for microbial growth. Further discussion revealed earlier Campylobacter jejuni enterocolitis that subsequently provoked reactive arthritis (ReA) mimicking PJI. The patient was treated with oral naproxen and intra-articular injection of triamcinolone and recovered completely without antibiotics or surgery. After 29 months, the knee is functioning normally.
ReA is rare but should be included in the differential diagnosis of PJI.
一位 59 岁男性，曾行部分膝关节置换术，功能良好，现因发热、肿胀和疼痛的膝关节而入院。临床表现符合人工关节感染（PJI），但关节滑液分析未检出微生物生长。进一步讨论显示，患者先前患有空肠弯曲菌性肠炎，随后引发反应性关节炎（ReA），类似 PJI。患者接受口服萘普生和关节内注射曲安奈德治疗，无需使用抗生素或手术即完全康复。29 个月后，膝关节功能正常。
ReA 虽罕见，但应纳入 PJI 的鉴别诊断。
