title: [Clinical efficacy evaluation of needle-knife for lumber disc herniation based on surface electromyography signals].
abstract: OBJECTIVE
  To apply needle-knife to treat lumber disc herniation (LDH) and surface electromyography were used to analyze biomechanical characteristic of patient's lumber muscle to make a comprehensive evaluation on its efficacy.
  
  
  METHODS
  Thirty patients who met the inclusive criteria were selected and treated with needle-knife, once a week for 2 weeks. Visual analogue scale (VAS), ASLR and JOA score before and after treatment were observed. Surface electromyography was applied to test the surface electromyography signals. AEMG, MFs and MPF were calculated before and after the treatment.
  
  
  RESULTS
  After treatment, VAS was significantly reduced, ASLR, JOA, AEMG and MPF were obviously increased, and the absolute value of MFs was lowed (all P < 0.01).
  
  
  CONCLUSIONS
  The needle-knife could significantly relieve lumbar muscle strength, muscle tone and muscle fatigue, improve in the imbalance of lumbar extensor muscle group, leading to the recovery of biomechanical characteristic, and the clinical efficacy is superior.
authors.forename: Xi-Yun
authors.initials: XY
authors.lastname: Yang
authors.forename: Zhi-Ru
authors.initials: ZR
authors.lastname: Chen
authors.forename: Da-Cheng
authors.initials: DC
authors.lastname: Zhao
authors.forename: Jian
authors.initials: J
authors.lastname: Guo
mesh_terms: D015670:Acupuncture Therapy; D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D008159:Lumbar Vertebrae / Q000503:physiopathology; D008297:Male; D008875:Middle Aged