title: Result of full endoscopic uniportal lumbar discectomy: preliminary report.
abstract: OBJECTIVE
  Several techniques of minimal invasive spinal surgery are now becoming common roles in the treatment of spinal diseases in many spinal centers. In the present report, the authors present a retrospective, cohort evaluation of 46 consecutive patients who underwent full endoscopic lumbar discectomy. The purpose of the present report was to present outcomes in this initial series of patients and to present outlines of the operative technique; the full endoscopic uniportal lumbar discectomy. The present research is the first preliminary report in Thailand to analyze and evaluate this new surgical technique.
  
  
  METHODS
  Forty-six lumbar disc herniation operations were performed in two spinal centers between February and June 2008, using the full endoscopic uniportal with Vertebris instrumentation system. The operations were carried out by interlaminar and transforaminal approach using an 8 mm-diameter uniportal endoscopy of Vertebris instrumentation. The outcome was clinically assessed, on immediate post-operation and one month after surgery, by using Visual Analogue Scale (VAS), the Thai Version of the modified Oswestry disability index (ODI) questionnaire (version 1.0), and modified McNab criteria.
  
  
  RESULTS
  Excellent and good outcome was achieved in 87.4% of patients from Modified McNab criteria. Forty-three patients (93.5%) had significant improvement of sciatic pain immediately after the operation. Eight postoperative complications were demonstrated and discussed.
  
  
  CONCLUSIONS
  Full endoscopic uniportal lumbar discectomy is a novel and effective minimally invasive spinal surgical technique. However, the technique requires surgical skill training and experience.
authors.affiliation: Division of Neurosurgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. verapan.kuonsongtum@gmail.com
authors.forename: Verapan
authors.initials: V
authors.lastname: Kuonsongtum
authors.forename: Sompoch
authors.initials: S
authors.lastname: Paiboonsirijit
authors.forename: Withawin
authors.initials: W
authors.lastname: Kesornsak
authors.forename: Voravut
authors.initials: V
authors.lastname: Chaiyosboorana
authors.forename: Pataravit
authors.initials: P
authors.lastname: Rukskul
authors.forename: Sorayouth
authors.initials: S
authors.lastname: Chumnanvej
authors.forename: Sebastian
authors.initials: S
authors.lastname: Ruetten
mesh_terms: D000328:Adult; D004185:Disability Evaluation; D017586:Diskectomy / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000601:surgery*; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D010147:Pain Measurement; D011795:Surveys and Questionnaires; D013785:Thailand; D016896:Treatment Outcome; D055815:Young Adult