Nabeta Masaharu, Yoshimoto Hisashi, Sato Shigenobu, Hyakumachi Takahiko, Yanagibashi Yasushi, Masuda Takeshi
Department of Orthopaedic Surgery, Eniwa Hospital, Kogane-cho, Eniwa, Japan.
J Neurosurg Spine. 2007 Jan;6(1):85-9. doi: 10.3171/spi.2007.6.1.17.
Discal cysts are rare lesions that can result in refractory sciatica. Because they are so rare, their exact origin and details of the clinical manifestations are still unknown. The authors report on five men treated for discal cysts. The mean age of the patients at the time of the surgery was 32 years (range 25-38 years). All patients suffered from lower-extremity pain and the results of the straight leg-raising test were positive in all cases. Three patients reported motor weakness and four had sensory disturbance-symptoms similar to those found in patients with lumbar disc herniation. Magnetic resonance imaging demonstrated spherically shaped extradural lesions of various sizes with low and high signal intensities on T1- and T2-weighted images, respectively. Discography revealed obvious communication between the cyst and the intervertebral disc with reproducible leg pain in all patients. All patients underwent posterior decompression and excision of the cysts either with or without additional discectomy. The radicular symptoms were remarkably improved in all patients immediately after surgery, and no recurrent lesions were noted during follow up.
椎间盘囊肿是一种罕见的病变，可导致难治性坐骨神经痛。由于其非常罕见，其确切起源和临床表现细节仍不清楚。作者报告了5例接受椎间盘囊肿治疗的男性患者。手术时患者的平均年龄为32岁（范围25 - 38岁）。所有患者均有下肢疼痛，直腿抬高试验结果均为阳性。3例患者报告有运动无力，4例有感觉障碍，症状与腰椎间盘突出症患者相似。磁共振成像显示硬膜外有各种大小的球形病变，在T1加权和T2加权图像上分别为低信号和高信号强度。椎间盘造影显示囊肿与椎间盘之间有明显的连通，所有患者均出现可重复性腿痛。所有患者均接受了后路减压和囊肿切除术，部分患者还进行了椎间盘切除术。所有患者术后神经根症状立即明显改善，随访期间未发现复发病变。
