刀片的畸形

2022-01-10 05:19:08 来源:
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Clasp-knife deformity is relatively common anomaly found at the lumbosacral junction and characterized by a large midline defect of the posterior arch of the sacrum (usually S1/S2 and occasionally S3) along with hypertrophy (or overgrowth) of the spinous process of vertebra above (usually L5).

畸形是较常见的腰骶部异常;在结构上是骶骨后腰的中线的块状缺损(往往S1/S2和偶而是S3)伴其上椎体(往往是腰5)棘突肥大(或过度生长)。

When a Clasp-knife deformity is accompanied by pain on extension secondary to protrusion of the enlarged spinous process (knife blade) into the sacral spinal c, it is called Clasp-knife syndrome.

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