Dorsal Epidural Gas after Lumbar Microdiskectomy Treated with CT-guided Needle Aspiration
10.13004/kjnt.2020.16.e25
- Author:
Woo-Seok BANG
1
;
Wonho LEE
;
Young-Seok LEE
;
Byung-Uk KANG
Author Information
1. Department of Neurosurgery, Topspine Hospital, Daegu, Korea
- Publication Type:Case Report
- From:Korean Journal of Neurotrauma
2020;16(2):305-312
- CountryRepublic of Korea
- Language:English
-
Abstract:
To present a case of unusual dorsal epidural gas (EG) accumulation after a simple lumbar microdiskectomy (MD), treated with computed tomography (CT)-guided needle aspiration.A 78-year-old woman underwent simple lumbar MD at the L3–4 level. One week after the operation, the patient complained of severe back pain radiating to the right thigh. Follow-up magnetic resonance imaging (MRI) and CT revealed huge EG formation at the dorsal L3–4 epidural space. Conservative treatment did not resolve the patient's pain. We performed CT-guided needle aspiration after 1 week of conservative treatment. The patient's pain fully resolved after aspiration, but it recurred 1 week later. Follow-up MRI and CT revealed reaccumulation of the dorsal EG at the L3–4 level. CT-guided needle aspiration was repeated, again leading to full pain resolution. Follow-up CT 6 months after the second aspiration showed no recurrent dorsal EG. The patient has been symptom-free for 1 year since the second aspiration. CT-guided needle aspiration is a safe and effective alternative to reoperation in the context of dorsal EG formation after MD.
