目的探讨经皮椎间孔镜技术治疗胸椎间盘突出症的效果及可行性。方法对1例胸椎间盘突出(T11/12)患者采取经皮椎间孔镜技术治疗。患者取俯卧位,局麻X线透视下穿刺至病变节段,正位透视穿刺针尖位于上关节突外缘,侧位透视针尖在上关节突尖部、椎间孔后缘,环锯扩大椎间孔后安置工作通道至椎间隙后缘,内镜下在后纵韧带腹侧和椎间隙内摘除突出退变的髓核,直至脊髓完全松解。术后放置引流,并观察手术结果。结果手术顺利摘除突出髓核,脊髓显露清晰,减压充分。患者术后2d拔出引流管,3d下地活动,临床症状明显缓解。末次随访时视觉模拟评分(VAS)腿痛由8分降至1分,Oswestry功能障碍指数(ODI)自64降至4。MacNab标准评分为优。结论胸椎间盘突出症临床上手术风险大、创伤大,应用经皮椎间孔镜技术治疗胸椎间盘突出症具有可操作性,手术创伤小、恢复快,短期效果优良。
Objective To investigate the feasibility of percutaneous transforaminal endoscopic spine system in thoracicdiscectomy for disc herniation.Methods One patient with thoracic disc herniation involved the level of vertebral segmentin T11/12was treated with percutaneous transforaminal endoscopic spine system and followed up for1month.The targetedpuncture was performed under local anesthesia and fluoroscopic guidance with patient in prone position.The foramen of T11/12was enlarged gradually with four trephinations,and the working cannula was inserted transforaminal into the canal.Then theherniation was exposed and removed with full endoscopic technique,including the loosen nucleus pulposus.The dural sacwas exposed and released adequately.Drainage was placed during operation.Results The procedure was successfullycarried out and the dural sac was completely released.The drainage was removed in the second day of operation.The patientcould walk in the third day after operation with obvious relief of back and leg pain.At the follow-up of one monthpostoperation,the visual analogue scale of leg pain decreased from8to1,and the Oswestry disability index(ODI)decreasedfrom64to4.According to MacNab scale,excellent result was acquired.Conclusion There is the feasibility of thepercutaneous transforaminal endoscopic spine system in thoracic discectomy for disc herniation.It is a good minimalinvasive technique with good results and high technical requirements for surgeons.