Spondylolysis is a condition in which the there is a defect in a portion of the spine called the pars interarticularis (a small segment of bone joining the facet joints ...A pars defect of the lumbar spine involves a part of a vertebra called the pars interarticularis. Roughly translated, that means "the part between two joints.
May 18, 2012 ... Grade II anterolisthesis of L4 over L5 vertebra is seen with pars interarticularis defect, giving a 'scotty dog appearance'.Slippage at l4-l5 region of your spine typically means you have spondylolysis or spondylolisthesis. Both of these are a result of a pars defect or break.What is a Spondylolisthesis or Anterolisthesis? Spondylolisthesis is a ... pain might be more associated sensitivity at the pars defect rather than secondary.
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The defect in the pars interarticularis is called spondylolysis. · Spondylolysis is not present at birth but increases in frequency with increasing age.My MRI says Pars Defect bilaterally with 3mm anterolisthesis of L5 on S1 and significant facet arthopathy/hypertrophy at the L4/L5 level with ...In spondylolysis, a crack or stress fracture develops through the pars interarticularis, which is a small, thin portion of the vertebra that connects the upper and ...