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Journal of Korean Neurosurgical Society 2011;49(1): 58-60.
doi: https://doi.org/10.3340/jkns.2011.49.1.58
Ligamentum Flavum Hematoma in the Adjacent Segment after a long Level Fusion.
Hyeun Sung Kim, Seok Won Kim, Sung Myung Lee, Ho Shin
1Department of Neurosurgery, Heori Sarang Hospital, Daejeon, Korea.
2Department of Neurosurgery, College of Medicine, Chosun University, Gwangju, Korea. chosunns@hanmail.net
Ligamentum flavum hematoma (LFH) is a very rare condition of dural compression; most are observed in the mobile cervical and lumbar spine regions. A 67-year-old man who had a long level interbody fusion at L3-S1 four years ago presented with symptoms suggestive of dural compression. Magnetic resonance imaging showed a posterior semicircular mass located at the adjacent L2-L3 level. After decompression of the spinal canal and removal of the mass lesion, pathological examination of the surgical specimen revealed a hematoma within the ligamentum. The patient fully recovered to normal status after surgery. Here, we report our experience with a LFH in the adjacent segment after a long level fusion procedure and discuss the possible associated mechanisms.
Key Words: Ligamentum flavum; Hematoma; Adjacent segment
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