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目的：探讨经皮内镜囊肿切除术治疗椎管内小关节囊肿的临床疗效及手术技巧。方法7例采用经皮内镜治疗的椎管内小关节囊肿患者纳入本前瞻性研究。所有患者在术前均进行了6周以上的非手术治疗。根据囊肿形态不同，分别采用经皮内镜椎间孔入路囊肿切除术和椎板间入路囊肿切除术治疗。分析入组患者的住院表，每例均行 MRI 检查，部分患者行术后影像学检查。随访1年以上。结果采用疼痛视觉模拟评分( visual analogue scale，VAS )和 MacNab 改良的疗效评定标准对患者术后疗效进行评估。经皮内镜切除小关节囊肿后进行囊肿形态观察。平均手术时间为53 min。无明显手术出血。依据 MacNab 标准，2例优，4例良，1例可。在良和可的病例中，术后放射性疼痛和跛行症状缓解较好，而部分患者仍残留腰痛。结论对于熟练的外科医生，经皮内镜手术是治疗椎管内小关节囊肿的一种较好选择。可以避免副损伤和术后不稳定的增加。经皮内镜可视系统为病理结构的切除和良好的椎管减压提供了条件。在行伴或不伴融合的椎板切除术之前应该首先考虑经皮内镜技术。“,”Objective To investigate the clinical outcomes and surgical techniques of percutaneous endoscopic resection of intraspinal facet cysts.Methods Seven patients diagnosed with intraspinal facet cysts treated endoscopically were included in this prospective trial. All patients underwent a minimum of 6 weeks of nonoperative management prior to the endoscopic resection. Transforaminal endoscopic cyst resection or interlaminar approach cyst resection were performed depending on the morphology of the cysts. A retrospective analysis of hospital charts, MRI images was performed for each patient included in this study. The follow up was up to one year. In selected cases a comparison of imaging was performed after surgery.Results The patient’s postoperative outcomes were graded using visual analog scale ( VAS ) and Macnab criteria. Furthermore, the morphological comparison of the removed cysts was included following endoscopic resection of their facet cysts. The average duration of the surgery was 53 minutes. There was no signiifcant blood loss. Two patients achieved an excellent outcome; four reported a good result and one had a fair result. The patients with good and fair outcome noticed that their radicular pain and claudication were relieved after surgery very well, but in some cases low back pain was still bothersome.Conclusions Endoscopic surgery in the hand of skilled surgeons seemed to be a good option for the treatment of facet cysts. It helps to avoid collateral damage and an increased instability. The endoscopic visualization allows a proper preparation and resection of the pathological structures and a good decompression of the spinal channel. Before an open laminectomy with or without fusion the endoscopic technique should be considered.