title: [Full-endoscopic interlaminar approach discectomy for central lumbar disc extrusion].
abstract: OBJECTIVE
  To evaluate the safety and efficacy of percutaneous endoscopic lumbar discectomy (PELD) in the treatment of central lumbar disc extrusion via an interlaminar approach.
  
  
  METHODS
  Between January 2012 and January 2014, 27 low-back pain patients with radicular central lumbar disc herniations underwent percutaneous endoscopic discectomy through an interlaminar approach. The clinical follow-ups were performed at 3 months, 6 months and 1 year with an extensive postoperative questionnaire, including pain visual analog scale (VAS) and Oswestry disability index (ODI).
  
  
  RESULTS
  Mini-invasive operation was completed successfully in all patients. The mean operative duration was 41 (26-83) min and the average postoperative hospitalization time 5 (2-7) days. The postoperative median VAS and ODI scores significant decreased at all time-points. Twenty-five patients had no longer leg pain. But the recurrence rate of disc herniation stood at 7.4%. One patient undergo reoperation (microscopic discectomy) and another showed a significant relief in pain symptoms after conservative treatment.
  
  
  CONCLUSIONS
  Endoscopic discectomy via an interlaminar approach for central lumbar disc extrusion offers significant advantages of faciliating rehabilitation, reducing complications, minimizing trauma and lowering expenditure.
authors.affiliation: Department of Orthopedic, Central Municipal Hospital, Affiliated Hospital of Medical College of Southeast University, Xuzhou 221009, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Ma
authors.affiliation: Email: guangwangliu@163.com.
authors.forename: Guangwang
authors.initials: G
authors.lastname: Liu
authors.affiliation: Department of Orthopedic, Jiangsu Traditional Chinese and Western Medicine Hospital, Jiangsu 210028, China; Email: xielin117@126.com.
authors.forename: Lin
authors.initials: L
authors.lastname: Xie
authors.forename: Huilin
authors.initials: H
authors.lastname: Yang
authors.forename: Juan
authors.initials: J
authors.lastname: Gao
authors.forename: Meng
authors.initials: M
authors.lastname: Han
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Jiang
authors.forename: Dong
authors.initials: D
authors.lastname: Wan
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Hao
authors.initials: H
authors.lastname: Tang
mesh_terms: D017586:Diskectomy; D017587:Diskectomy, Percutaneous; D004724:Endoscopy; D006801:Humans; D007403:Intervertebral Disc; D007405:Intervertebral Disc Displacement; D017116:Low Back Pain; D008159:Lumbar Vertebrae; D008161:Lumbosacral Region; D010147:Pain Measurement; D011184:Postoperative Period; D012008:Recurrence; D012086:Reoperation; D011795:Surveys and Questionnaires