title: [Mini-incision posterior laminectomy by fenestration in the treatment of huge lumbar disc herniation].
abstract: OBJECTIVE
  To discuss clinical effects and methods of mini-incision posterior laminectomy by fenestration in the treatment of huge lumbar disc herniation.
  
  
  METHODS
  From 1999 to 2008,107 patients with huge protruded lumbar intervertebral disc were retrospectively analyzed including 78 males and 29 females with an average age of 38.5 years ranging from 26 to 59 years. The patients were operated with mini-incision posterior laminectomy by fenestration. The affected region of patients were L4.5 (36 cases), L5S1 (71 cases). The herniation rate of nucleus was more than 40%. The patient's scores based on low back pain improved JOA standard were retrospectively analyzed.
  
  
  RESULTS
  The 107 patients were followed-up for from 0.5 to 4 years with an average of 1.75 years. The scores by low back pain improved JOA standard were improved from (1.500 +/- 1.200) before operation to (12.700 +/- 0.950) after operation. The average improvement rate was (82.96 +/- 6.85)%.
  
  
  CONCLUSIONS
  It is a reliable method in the treatment of huge lumbar disc herniation with mini-incision posterior laminectomy by fenestration. The treatment method have advantage with less trauma, good spinal stability, conducive to patient recovery and maintain clinical efficacy.
authors.affiliation: Department of Orthopaedics, 3rd People's Hospital of Henan Province, Zhengzhou 450006, Henan, China. weimg1998@hotmail.com
authors.forename: Mei-Gang
authors.initials: MG
authors.lastname: Wei
authors.forename: Yi
authors.initials: Y
authors.lastname: He
authors.forename: Bi-Sheng
authors.initials: BS
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
mesh_terms: D000328:Adult; D005260:Female; D059685:Herniorrhaphy; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000601:surgery*; D007796:Laminectomy / Q000379:methods*; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D011379:Prognosis