title: A comparison of the effectiveness of mitomycin C and 5-fluorouracil in the prevention of peridural adhesion after laminectomy.
abstract: OBJECTIVE
  The effectiveness of the topical application of mitomycin C (MMC) or 5-fluorouracil (5FU) in preventing peridural adhesion after laminectomy was compared in this study.
  
  
  METHODS
  Laminectomies were performed at L-1 in 30 rats. Cotton pads soaked with 0.1 mg/ml MMC, 25 mg/ml 5FU, or 9 mg/ml saline (control) were applied to the operative sites. To evaluate neurological deficits pre- and postoperatively, somatosensory evoked potentials were monitored and the Basso-Beattie-Bresnahan locomotion test was performed. Four weeks postlaminectomy the rats were killed, and peridural scar adhesion was evaluated histologically. The level of hydroxyproline, the area of peridural scar tissue, and the number of fibroblasts were determined. The degree of peridural adhesion was classified according to the Rydell standard.
  
  
  RESULTS
  No obvious adhesion formed in the rats in the MMC group, but severe peridural adhesions were found in those in the 5FU and control groups. The content of hydroxyproline, the area of peridural scar tissue, and the number of fibroblasts in the MMC group were significantly lower than those in the 5FU and control groups.
  
  
  CONCLUSIONS
  The topical application of MMC rather than 5FU may be a successful method of preventing postlaminectomy peridural adhesions.
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Sun
authors.forename: Li-Xin
authors.initials: LX
authors.lastname: Wang
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Si-Xin
authors.initials: SX
authors.lastname: Sun
authors.forename: Xiao-Jian
authors.initials: XJ
authors.lastname: Cao
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Feng
mesh_terms: D000818:Animals; D000964:Antimetabolites, Antineoplastic / Q000627:therapeutic use*; D004388:Dura Mater; D005472:Fluorouracil / Q000627:therapeutic use*; D007796:Laminectomy / Q000009:adverse effects*; D008159:Lumbar Vertebrae; D008297:Male; D016685:Mitomycin / Q000627:therapeutic use*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013118:Spinal Cord Diseases / Q000209:etiology / Q000517:prevention & control*; D000267:Tissue Adhesions / Q000209:etiology / Q000517:prevention & control
chemical_list: D000964:Antimetabolites, Antineoplastic; D016685:Mitomycin; D005472:Fluorouracil