Spondylolisthesis

  • Spondylolisthesis refers to anterior slipping of a vertebra compared to the one below it
  • Etiology
    • Spondylolysis
    • Fracture
    • Congenital malformation
    • Tumour
  • Clinical features
    • Many cases are asymptomatic
    • Low back pain
    • Palpable “step off” at the area of slippage
    • Pain may radiate
  • Severe (grave V) spondylolisthesis is called spondyloptosis
    • The vertebra has slipped so far with respect to the vertebra below that the two endplates are no longer congruent