Lower motor neurone lesion

external

• Synonyms

  • LMN lesion

• Causes

  • Peripheral neuropathy
  • Mixed motor weakness
  • Mainly motor neuropathy
  • Cauda equina syndrome
  • Kennedy disease
  • Spinal muscular atrophy

• Effects

  • Muscle weakness
  • Hyporeflexia
  • Paraesthesia
  • Absent ankle jerk
  • Fasciculation
  • Hypotonia
  • Flaccid paralysis

• Parents

  • Neurological pathology

• Children

  • Foot drop
  • Intrinsic muscles of hand weakness
  • Froment sign
  • Facial nerve palsy
  • Index finger weakness