title: Usefulness of the tendon reflex for assessing spasticity after botulinum toxin-a injection in children with cerebral palsy.
abstract: This study sought to investigate the relationships between clinical and neurophysiologic assessments of spasticity after injection of botulinum toxin-A in children with cerebral palsy. A total of 40 children were recruited. Clinical assessments included the modified Ashworth scale and modified Tardieu scale parameters R1, R2, and D. Neurophysiologic assessment included compound motor action potential, Hoffmann, and tendon reflex. Children showed significant decreases in modified Ashworth scale, R1, and R2 at 2, 4, and 12 weeks and in D at 2 and 4 weeks. Amplitude of compound motor action potential decreased at 2 weeks, Hoffmann reflex amplitude decreased at 4 weeks, and tendon reflex amplitude decreased at 2 and 4 weeks. At 12 weeks, none of the neurophysiologic parameters differed from baseline. The correlations among R2, D, and the amplitude of tendon reflex were significant. Neurophysiologic tests could be used to evaluate reduced spasticity after botulinum toxin-A injection. The amplitude of tendon reflex showed the highest correlation with severity of spasticity.
authors: Department of Rehabilitation, Incheon St. Mary's Hospital, Catholic University of Korea, Korea.
authors: Dae-Hyun
authors: DH
authors: Jang
authors: In Young
authors: IY
authors: Sung
authors: Yu Jeong
authors: YJ
authors: Kang
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D002547:Cerebral Palsy / Q000150:complications / Q000188:drug therapy*; D002648:Child; D002675:Child, Preschool; D019054:Evoked Potentials, Motor / Q000187:drug effects; D005260:Female; D006181:H-Reflex / Q000187:drug effects; D006801:Humans; D008297:Male; D009128:Muscle Spasticity / Q000150:complications / Q000188:drug therapy*; D009465:Neuromuscular Agents / Q000627:therapeutic use*; D017063:Outcome Assessment, Health Care / Q000379:methods; D011930:Reaction Time / Q000187:drug effects; D012026:Reflex, Stretch / Q000187:drug effects*; D012720:Severity of Illness Index; D013223:Statistics as Topic
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A