title: [Endoscopic transforaminal lumbar decompression, bone graft fusion and pedicle screw fixation under X-tube system: report of 42 cases].
abstract: OBJECTIVE
  To evaluate the surgical procedure of unilateral transforaminal discectomy, bone grafting, cage (Telamon) insertion and Dylanok pedicle screw fixation using X-tube operation system for the treatment of lumbar disc herniation combined with segmental instability and Spondylolysis with pars defect.
  
  
  METHODS
  From 2004 to 2006, 42 patients including 17 male and 25 female were treated in our department. The age range from 22 to 77 (mean: 51.6). Etiologies including lumbar disc herniation combined with segmental instability and Spondylolysis with pars defect.
  
  
  RESULTS
  Of these 42 patients, the mean operation time was 240 min (110 - 320 min), the average blood loss was 140 ml (80 - 420 ml), the average incision length was 3 cm (2.8 - 3.2 cm) and the average hospitalization time was 12.5 days (5 - 25 days). Nakai criteria, Excellent in 23 cases (62.2%), good in 11 cases (29.2%) and fair in 3 cases (8.6%). 5 patients had postoperative complication (complication rate: 16.3%).
  
  
  CONCLUSIONS
  The surgical procedure has shown predominant benefits: small incision, less stripping of paraspinal muscles, minimal blood loss and rapid postoperative recovery which makes it a valuable alternative to conventional surgical procedures.
authors.affiliation: Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China. happyzhou@vip.163.com
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Tong-wei
authors.initials: TW
authors.lastname: Chu
authors.forename: Chang-qing
authors.initials: CQ
authors.lastname: Li
authors.forename: Wen-jie
authors.initials: WJ
authors.lastname: Zheng
authors.forename: Yong
authors.initials: Y
authors.lastname: Hao
authors.forename: Yong
authors.initials: Y
authors.lastname: Pan
authors.forename: Zheng-feng
authors.initials: ZF
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D001863:Bone Screws; D016025:Bone Transplantation; D019299:Decompression, Surgical / Q000379:methods; D017587:Diskectomy, Percutaneous / Q000379:methods*; D004724:Endoscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000601:surgery*; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods*; D013169:Spondylolysis / Q000150:complications / Q000601:surgery; D016896:Treatment Outcome