Which grade of spondylolisthesis is an absolute contraindication for adjusting a patient?

• A. Grade 1
• B. Grade 2
• C. Grade 3
• D. Grade 4

Answer: (C)

Grade 3 spondylolisthesis is considered an absolute contraindication for adjusting a patient due to the severity of the slippage of the vertebrae. In Grade 3, there is a significant anterior displacement of the vertebra that can lead to increased instability and potential cauda equina symptoms. The risk of exacerbating the condition through chiropractic adjustments is high, as the structural integrity of the affected segment is compromised.

In contrast, Grades 1 and 2 involve less severe slippages where conservative adjustments might still be considered with caution and proper clinical judgment. Grade 4 represents a more extreme condition but is typically associated with more severe symptoms and complications, making it also generally contraindicated for manipulation. However, the specific categorization of Grade 3 as an absolute contraindication highlights its critical state where adjustments could pose serious harm to the patient's neurological function and overall stability.