Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.
American University of Beirut Medical Center, Beirut, Lebanon.
World Neurosurg. 2023 Nov;179:144-145. doi: 10.1016/j.wneu.2023.08.041. Epub 2023 Aug 18.
Synovial cysts of the spine are degenerative cystic lesions that can lead to severe symptoms secondary to compression of the spinal cord, individual nerve roots, and/or the cauda equina. Some believe the etiology of this entity is related to increased motion across the facet joint and instability. We report a case of a lumbar synovial cyst located at the same level as a previously inserted spinous process fusion device. This case illustrates that, unlike a transpedicular instrumented fusion where the risk of synovial cyst formation is zero, a spinal process fusion can still lead to synovial cyst formation likely due to persistent micromotion across that segment.
脊柱滑囊囊肿是退行性囊性病变，如果脊髓、单个神经根和/或马尾神经受到压迫，可能会导致严重的症状。一些人认为这种病变的病因与小关节活动度增加和不稳定有关。我们报告了一例位于先前插入棘突融合装置同一水平的腰椎滑囊囊肿。这个病例说明，与经椎弓根器械固定融合不同，滑囊囊肿的形成风险为零，而脊柱关节突融合仍可能导致滑囊囊肿形成，这可能是由于该节段持续存在微活动。
