Which statement about Grade V spondylolisthesis is true?

• A. It is also called Spondyloptosis
• B. It corresponds to 76-100% translation
• C. It is corrected with extension
• D. It is a minor slip

Answer: (A)

Grade V spondylolisthesis is the most severe form of forward slippage, where the vertebra completely displaces over the one beneath—this extreme condition is typically called spondyloptosis. That is why the statement that Grade V is also called Spondyloptosis is correct. The 76-100% translation range corresponds to the preceding grade, not the final one, so that option doesn’t fit. While extending the spine can help reduce forward slip in general, Grade V usually requires substantial reduction, often surgically, so saying it is corrected with extension isn’t accurate. And describing it as a minor slip contradicts the defining severity of Grade V.