Objective: To evaluate the clinical results of percutaneous endoscopic transforaminal discectomy (PETD) for L5~S1 lumbar disc herniation (LDH). Methods: One hundred and two cases of L5~S1 LDH from April 2016 to June 2018 were retrospectively analyzed, including 13 patients with high iliac crest. Pre-and postoperative pain was measured by Visual Analog Scale (VAS) and functional status was assessed by Oswestry Disability Index (ODI). Results: All the operations were successful and no severe complications occurred such as hemorrhages, infections, injury of nerves. The operation time was (87.6±21.0) min; the frequencies of intraoperative fluoroscopy were 29.1±11.7; the postoperative bedridden time was (4.6±1.1) hours and the hospital stay was (3.6±0.5) days. The mean VAS and ODI scores were significantly improved (P<0.01) postoperatively. The efficiency of 102 cases were excellent in 89 cases (87.3%), good in 8 cases (7.8%), fair in 4 cases (3.9%) and poor in 1 cases (1.0%). One patient (1.0%) relapsed at 6 months after surgery. Conclusions: PETD is a safe and effective method for treatment of L5~S1 LDH. The "transverse process localization method" might be an effective technique for patient with high iliac crest and/or hypertrophic transverse process.
目的： 探讨经皮椎间孔入路椎间孔镜下椎间盘切除术（PETD）治疗L5~S1腰椎间盘突出症（LDH）的临床疗效。 方法： 对象为宣武医院神经外科2016年4月至2018年6月采用PETD治疗LDH患者（L5~S1），共102例。对于高髂嵴患者采用"横突定位法"，通过视觉模拟评分法（VAS）及Oswestry功能障碍指数（ODI）评价手术疗效。 结果： 所有患者均完成PETD手术治疗，手术时间（87.6±21.0）min，术中透视（29.1±11.7）次，术后卧床时间（4.6±1.1）h，住院时间（3.6±0.5）d。术后1 d、3个月和末次随访时VAS和术后3个月ODI评分均较术前减少（均P<0.01）。疗效评价：优89例（87.3%），良8例（7.8%），中4例（3.9%），差1例（1.0%）。 结论： PETD为治疗L5~S1 LDH安全、有效的手术方法。对于高髂嵴、横突肥大的患者，横突定位法可能是一种有效的椎间孔成型方法。.
Keywords: High iliac crest; L5~S1; Lumbar disc herniation; Percutaneous endoscopic transforaminal discectomy.