title: Evaluation of the therapeutic results of epiduroscopic adhesiolysis for failed back surgery syndrome.
abstract: BACKGROUND
  No data for patients with failed back surgery syndrome (FBSS) based on the location of adhesions separated by epiduroscopic adhesiolysis have been reported.
  
  
  METHODS
  We performed epiduroscopic adhesiolysis on 28 FBSS patients to examine the impact of differences in the locations of the separated regions on the treatment results. We performed fluoroscopic imaging through the sacral hiatus to assess the condition of adhesions in the epidural space during the post-adhesiolysis observation period.
  
  
  RESULTS
  In patients in whom only the epidural space was separated by adhesiolysis, there was a significant improvement in the Roland-Morris disability questionnaire (RDQ) score until 12 weeks after adhesiolysis, but the score gradually returned to the preoperative value thereafter. Among patients in whom the nerve root responsible for radicular pain was separated, there was a long-term improvement in the RDQ, Oswestry disability index 2.0 (ODI), and Japanese Orthopedic Association Assessment of Treatment (JOA) scores. Among patients in whom both the epidural space and the nerve root responsible for pain were separated, there was a 12 week improvement in the RDQ score and 24 week improvements in the ODI and JOA scores.
  
  
  CONCLUSIONS
  Progressive epidural imaging after adhesiolysis suggested that pain was caused by re-adhesion around the nerve root. Since re-adhesion of the nerve root required some time, the effect of adhesiolysis was maintained for extended periods in these cases. We suggest that epiduroscopic adhesiolysis is an effective therapy for FBSS patients, and that adhesiolysis of the nerve root may exhibit the long-term (24 weeks) efficacy in patients with pain.
authors.affiliation: Oita University Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, 1-1 Idaigaoka, Hasama, Oita 879-5593, Japan. ntake@med.oita-u.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Takeshima
authors.forename: H
authors.initials: H
authors.lastname: Miyakawa
authors.forename: K
authors.initials: K
authors.lastname: Okuda
authors.forename: S
authors.initials: S
authors.lastname: Hattori
authors.forename: S
authors.initials: S
authors.lastname: Hagiwara
authors.forename: J
authors.initials: J
authors.lastname: Takatani
authors.forename: T
authors.initials: T
authors.lastname: Noguchi
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D001416:Back Pain / Q000601:surgery*; D004185:Disability Evaluation; D004824:Epidural Space / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement / Q000379:methods; D011184:Postoperative Period; D012008:Recurrence; D013126:Spinal Nerve Roots / Q000601:surgery; D013577:Syndrome; D000267:Tissue Adhesions / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D017211:Treatment Failure; D016896:Treatment Outcome