Which Meyerding grade corresponds to translation greater than 100%?

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Multiple Choice

Which Meyerding grade corresponds to translation greater than 100%?

This question tests Meyerding grading of spondylolisthesis, which uses how far the upper vertebra has slipped forward as a percentage of the width of the lower vertebral body. Grades I–IV describe slips up to 100%: under 25%, 25–50%, 50–75%, and 75–100% respectively. If the translation exceeds the width of the lower vertebra, that is Grade V, known as spondyloptosis. So translation greater than 100% corresponds to Grade V. The other grades account for slips up to 100% and do not exceed it.

This question tests Meyerding grading of spondylolisthesis, which uses how far the upper vertebra has slipped forward as a percentage of the width of the lower vertebral body. Grades I–IV describe slips up to 100%: under 25%, 25–50%, 50–75%, and 75–100% respectively. If the translation exceeds the width of the lower vertebra, that is Grade V, known as spondyloptosis. So translation greater than 100% corresponds to Grade V. The other grades account for slips up to 100% and do not exceed it.

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