• Yuya Ogawa, Masahiro Nagatsuma, Gou Kubota, Gen Inoue, Yawara Eguchi, Sumihisa Orita, Masashi Takaso, Nobuyasu Ochiai, Kazuki Kuniyoshi, Yasuchika Aoki, Tetsuhiro Ishikawa, Masayuki Miyagi, Hiroto Kamoda, Miyako Suzuki, Yoshihiro Sakuma, Yasuhiro Oikawa, Kazuhide Inage, Takeshi Sainoh, Kazuyo Yamauchi, Tomoaki Toyone, Junichi Nakamura, Shunji Kishida, Kazuhisa Takahashi, and Seiji Ohtori.
• Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
• Spine. 2012 Nov 15;37(24):E1529-33.

Study DesignA case report.ObjectiveAn elderly patient presented with an acute lumbar spinal pseudogout attack after lumbar instrumented surgery.Summary Of Background DataAlthough gout and pseudogout are common diseases causing inflammatory arthropathy in peripheral joints, involvement of the spine is uncommon. Here, we report a patient experiencing an acute lumbar spinal pseudogout attack after lumbar instrumented surgery.MethodsThe patient was treated for lumbar spondylolisthesis at L4 and L5 level and afterward complained of lower back and bilateral leg pain. Conservative treatment was not effective for the patient; therefore, we preformed posterior transforaminal lumbar interbody fusion surgery.ResultsThe postoperative course was uneventful; however, he experienced lower back pain 4 weeks after surgery. Magnetic resonance image showed changes in signal intensities of vertebra and fluid accumulation in posterior back muscles. A biopsy was performed, but the culture was negative for infection. Calcium pyrophosphate dehydrate was detected in the fluid. Thus, conservative therapy without antibiotics was performed, and the patient's symptoms disappeared within 2 weeks.ConclusionHere, we reported the first case of acute lumbar spinal pseudogout attack after lumbar instrumented surgery. We recommend considering pseudogout before and after surgery.

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