title: Efficacy of a new navigable percutaneous disc decompression device (L'DISQ) in patients with herniated nucleus pulposus related to radicular pain.
abstract: METHODS
  An institutional, prospective clinical data analysis.
  
  
  OBJECTIVE
  To evaluate the safety and efficacy of a new navigable percutaneous disc decompression device (L'DISQ) in patients with lumbar disc herniation with radicular pain.
  
  
  METHODS
  We performed disc decompressions using L'DISQ on 27 patients with persistent disabling back and leg pain for 1 month or longer (average 6.48 months) due to a herniated lumbar intervertebral disc. Baseline data were prospectively gathered before the index procedure and at 1, 4, 12, and 24 weeks post-procedure. Data included pain intensity (visual analog scale [VAS]), measure of disability (Oswestry Disability Index [ODI] and Rolando-Morris Questionnaire [RM]), health-related quality of life (Bodily Pain Scale of Short Form-36 version 2 [SF-36 BP]), and passive straight leg raising test (SLR).
  
  
  RESULTS
  The VAS fell from 7.08±1.22 to 1.84±0.99 scores at 24 weeks post-procedure. At 24 weeks, the ODI had fallen from 41.88±10.61 to 16.66±8.55% and the RM from 11.52±3.91 to 2.68±1.97 points. The SF-36 BP dropped significant improvement from 32.89±5.83 to 49.57±4.96 scales. In the SLR test, the angular change of 24 weeks showed considerable improvement from 60.20±20.02 to 83.00±14.29 degrees. No major complication occurred, although two cases developed a disc reherniation 1 month post-procedure.
  
  
  CONCLUSIONS
  The L'DISQ device is specifically designed to remove herniated disc using a wand that can be navigated into a disc protrusion or extrusion. Following decompression, we measured clinically significant pain improvement and decreased disability for patients with both radicular and axial pain caused by protruded and extruded discs.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Korea University Medical Center, Seoul, South Korea. spinelee@gmail.com
authors.forename: Sang Heon
authors.initials: SH
authors.lastname: Lee
authors.forename: Richard
authors.initials: R
authors.lastname: Derby
authors.forename: Dong geun
authors.initials: Dg
authors.lastname: Sul
authors.forename: Jung wha
authors.initials: Jw
authors.lastname: Hong
authors.forename: Gon Ho
authors.initials: GH
authors.lastname: Kim
authors.forename: Seok
authors.initials: S
authors.lastname: Kang
authors.forename: Nack Hwan
authors.initials: NH
authors.lastname: Kim
authors.forename: Seung Han
authors.initials: SH
authors.lastname: Yoo
authors.forename: Seok Jun
authors.initials: SJ
authors.lastname: Lee
authors.forename: Young Ki
authors.initials: YK
authors.lastname: Hong
authors.forename: Jeong Eun
authors.initials: JE
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019299:Decompression, Surgical / Q000295:instrumentation* / Q000379:methods; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications* / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology* / Q000601:surgery; D010147:Pain Measurement; D010865:Pilot Projects; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D055815:Young Adult