胸腰段椎管内硬脊膜外蛛网膜囊肿的临床特点 和显微外科治疗效果

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【中图分类号】 R651 【文献标志码】 A 【文章编号】 1672-7770（2025）04-0366-05

Clinical characteristics and microsurgical therapeutic outcomes of thoracolumbar spinal extradural arachnoid cysts LIU Hao， QIN Han， LI Wei， DAI Yuxiang， LU Tianyu， XU Wu，NI Hongbin，HANG Chunhua. Department of Neurosurgery，Nanjing Drum Tower Hospital， The Affiliated Hospital of Nanjing University Medical School，Nanjing 21ooo8，China Corresponding author： NI Hongbin

Abstract： ObjectiveTo summarize the clinical characteristics and microsurgical treatment experience of spinal extradural arachnoid cysts（SEACs）in the thoracolumbar region.MethodsThe clinical data of 23 patientswith thoracolumbar SEACs who underwent microsurgical treatment at the Department of Neurosurgery，Drum Tower Hospital，TheAfliated Hospital of Nanjing University Medical School from March 2O22 to May 2O24 were analyzed retrospectively. The clinical features and surgical outcomes were systematically analyzed. ResultsAll patients reported symptom relief after surgery. Final whole-spine X-rays showed no iatrogenic spinal deformities or instability，and MRI confirmed no cyst recurrence. ConclusionsThoracolumbar SEACspredominantly occur at the thoracolumbar junction，with leaks typically located near the midpoint of the cyst's cephalocaudal axis and no lateral predilection. A hemilaminectomy approach through the intervertebral space hemilaminectomy approach， minimizing biomechanical impact，is recommended.Microscopic tight closure of the leak iscritical for surgical success，and long-term follow-up demonstrates satisfactory outcomes.

Key words ： thoracolumbar region; SEACs； clinical characteristic;；microsurgical treatment ； efficacy

胸腰段椎管内硬脊膜外蛛网膜囊肿（spinalextraduralarachnoidcysts，SEACs）是一种罕见的可以压迫脊髓和马尾神经的病变，通常通过小的硬膜漏口与蛛网膜下腔相通[1-2]。（剩余10812字）