Traditional treatments of early onset spine and chest wall deformity, such as spinal fusion, focused on the vertebral column deformity and often restricted growth of the spine.

早发性脊柱和胸壁畸形，如脊柱融合术，专注于脊柱畸形和脊柱的增长，往往局限于传统的治疗方法。

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Another diagnosis to consider is a closed spinal dysraphism, where the vertebral arches are not fused well, but there is no vertebral column agenesis.

另一种鉴别诊断是闭合性的脊髓椎管闭合不全，同样椎弓没有融合，但没有脊椎发育不良。

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Therefore, the dwarf mutation in X. helleri is caused by the developmental defect in spinal column, and the vertebral malformation underlies the body type alteration anatomically.

因而推测，剑尾鱼的侏儒突变是由于脊椎的发育缺陷所致，椎体异常是其体型变化的结构基础。

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