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Korean Journal of Anesthesiology 2007;53(5):683-687.
DOI: https://doi.org/10.4097/kjae.2007.53.5.683   
Lumbar Paraspinal Myonecrosis Following Combined Spinal Epidural Anesthesia: A case report.
Min Kyun Kim, Ji Hyang Lee, Eun Ju Kim, Sang Gon Lee, Jong Suk Ban, Byung Woo Min
Department of Anesthesiology and Pain Medicine, Fatima Hospital, Daegu, Korea. lovehan3@yahoo.co.kr
A 55-year-old woman received a combined spinal epidural anesthesia for total replacement surgery of the left knee. After surgery, the epidural patient controlled analgesia (PCA) device was activated. After the first post-operative day, the patient complained of severe back pain rather than left knee pain in spite of the bolus dose of analgesics via epidural catheter. The epidural catheter was removed and intravenous PCA was initiated. On the 16th post-operative day, the patient's back and knee pain improved; however, the fever did not subside. A blood test revealed increased inflammatory markers in spite of antibiotic therapy. Under the suspicion of epidural abscess, a lumbar magnetic resonance imaging scan was performed and revealed an increase in the signal within left lumbar paraspinal muscle. A prompt debridement and irrigation of the necrotic tissues was performed. The histologic diagnosis was lumbar paraspinal myonecrosis. Subsequent to this corrective procedure, the patient's fever subsided and the inflammatory markers were normalized, except for mild back pain after the surgical repair.
Key Words: combined spinal epidural anesthesia; lumbar paraspinal myonecorsis; patient cotrolled analgesia


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