Disease or Syndrome
spondylolysis
Subclass of:
Spondylosis
Definitions related to spondylolysis:
  • A defect in the pars interarticularis of a vertebral bone.
    NCI
    U.S. National Cancer Institute, 2021
  • Deficient development or degeneration of a portion of the VERTEBRA, usually in the pars interarticularis (the bone bridge between the superior and inferior facet joints of the LUMBAR VERTEBRAE) leading to SPONDYLOLISTHESIS.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Spondylolysis is an osseous defect of the pars interarticularis, thought to be a developmental or acquired stress fracture secondary to chronic low-grade trauma.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
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