ARRS 2022 Abstracts

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E1297. Lumbar Spine Normal Variants and Pars
Authors
  1. Elizabeth Dobben; Henry Ford Hospital
  2. Sydney Rubin; Michigan State University
  3. Chad Klochko; Henry Ford Hospital
  4. Joseph Craig; Henry Ford Hospital
Background
The lumbar spine is one of the most common sites of chronic pain and can exhibit multiple anatomic variants that can be confused for pathology. In addition, some anatomic variants predispose patients to early osteoarthrosis and injury, which are important to recognize for appropriate patient management.

Educational Goals / Teaching Points
After viewing this exhibit, participants will become familiar with lumbar spine anatomy and the most common lumbar spine anatomic variants, their clinical presentations, and their distinguishing imaging features. Reviewed variants and syndromes will include tethered conus syndrome, incomplete fusion of the posterior vertebral arch, lumbosacral transitional vertebra, Bertolotti Syndrome, spondylolysis, and pars defects.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
This exhibit will provide a brief anatomic review of the lumbar spine and will highlight classic imaging findings of the most common lumbar spine variants and chronic lumbar spine syndromes. Selected MR, CT, and 3-D reconstructed images will be shown to highlight distinguishing characteristics across modalities.

Conclusion
The radiologist’s knowledge of lumbar spine anatomic variants is extremely important to guide interpretation of spine imaging. Additionally, this knowledge is vital to help guide clinicians to chronic findings can explain life-long symptoms that can often result in significant morbidity.