Shinomiya K, Mutoh N, Furuya K
Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Japan.
J Spinal Disord. 1994 Oct;7(5):444-8.
Most sacral cysts are accidentally found on lumbar myelograms and are usually asymptomatic. We operated on two patients with giant sacral cysts from S3 nerve roots who complained of neurogenic bladder and perianal sensory disturbance as well as buttock pain. Morphology of these cysts and intraoperative electrophysiological findings of nerve conduction block showed two kinds of pathogenesis causing these neurological symptoms. One was attributed to conduction block of more caudal sacral nerves squeezed between these giant sacral cysts and the other was due to degeneration of nerve root fibers involved in the sacral cyst walls. Postoperatively, buttock pain and perianal hypesthesia were resolved, but the neurogenic bladder showed only partial recovery.
大多数骶管囊肿是在腰椎脊髓造影时偶然发现的，通常无症状。我们对两名患有源自S3神经根的巨大骶管囊肿的患者进行了手术，他们主诉有神经源性膀胱、肛周感觉障碍以及臀部疼痛。这些囊肿的形态以及术中神经传导阻滞的电生理结果显示导致这些神经症状的发病机制有两种。一种是由于在这些巨大骶管囊肿之间受压的更低位骶神经传导阻滞，另一种是由于骶管囊肿壁内神经根纤维的退变。术后，臀部疼痛和肛周感觉减退得到缓解，但神经源性膀胱仅部分恢复。
