There are 24 bones called vertebrae in the cervical, thoracic and lumbar regions of the spine.

有24个骨头叫颈椎，胸椎，腰椎脊柱的椎骨地区。

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The three force system of the spine and fixed to play the role of traction, so that the spine flexible and flexibility, so that people can do the normal cervical curve, thoracic curve, lumbar curve.

这三个力系对脊椎起到牵引和固定的作用，使脊柱具有弹性和柔韧性，使人们可以做到正常的颈弯，胸弯，腰弯。

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Methods: 10 patients with burst fracture of thoracic spine and 22 of lumbar spine were treated by this instument.

方法：用本法治疗10例胸椎和22例腰椎的爆裂性骨折。

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