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  1. Spondylolysis: Causes, Treatment & Prevention - Cleveland Clinic

    Spondylolysis is a small crack between two vertebrae (the bones in your spine). Spondylolysis usually causes lower back pain. Most people don’t need surgery to treat it. Rest, medication and physical …

  2. Spondylolysis - Johns Hopkins Medicine

    Spondylolysis is a stress fracture through the pars interarticularis of lumbar vertebrae. This injury does not always show a symptom, but when it does, the only symptom is usually back pain.

  3. Spondylolysis and Spondylolisthesis - OrthoInfo - AAOS

    Spondylolysis is a weakness or stress fracture in one of the vertebrae, the small bones that make up the spinal column. This condition or weakness can occur in up to 5% of children as young as age 6 with …

  4. Spondylolysis - Wikipedia

    Spondylolysis results in a spinal instability and disrupts patterns of co-recruitment between muscle synergies. Specifically, local muscles that attach directly to the spine are affected.

  5. Spondylolysis and Spondylolisthesis - Spine-health

    Spondylolysis refers to a defect in the short, flat strip of bone called pars interarticularis (or pars). The pars is located at the back of the spine and forms a bridge (or isthmus) between the upper and lower …

  6. Spondylolysis (Pars Stress Fracture of the Spine)

    Sep 6, 2022 · What is spondylolysis? Spondylolysis is a spinal defect or fracture of a bone structure called the pars interarticularis, which connects the facet joints of the spine. The condition is …

  7. Spondylolysis - Physiopedia

    Spondylolysis is a unilateral or bilateral bony defect in the pars interarticularis or isthmus of the vertebra. It most commonly affects the lumbar vertebrae, but has also been reported in the cervical and …

  8. Spondylolysis & Spondylolisthesis - Massachusetts General Hospital

    Spondylolysis is a condition in which the last vertebra of the lower spine is fractured. In spondylolisthesis, the spondylolysis weakens the bone so much that it cannot maintain proper …

  9. Spondylolysis and Spondylolisthesis - Kaiser Permanente

    Jul 24, 2025 · Spondylolysis is a defect or fracture of one or both of the wing-shaped parts of a vertebra. It most often happens in the vertebrae of the lower spine. The wing-shaped parts help keep the …

  10. Spondylolysis | Conditions & Treatments | UR Medicine

    What Is Spondylolysis? Spondylolysis is a fracture between vertebrae in the spine usually caused by excessive flexion and extension of the lower back. It is commonly seen in football linemen, …