椎体之间撑开，以缓解受累神经根的压迫并接纳假体。

The vertebral bodies are spred apart to relieve the pressure on the pinched nerve root and to accept the prosthesis.

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椎体表面病变的椎间盘软骨清除干净，为金属终板假体作准备。

The end surfaces of the vertebral bodies are cleared of all diseased disc cartilage and readied for the metal endplates of the prosthesis.

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表明颈椎动态稳定器置入后对邻近节段椎体活动度无明显影响或影响甚小，在一定程度上减小假体与其邻近椎体轴向应力，有效地维持颈椎活动。

There was no significant influence for the ROM of the upper and lower cervical segments. To some extent, the DCI diminished the axial stress and maintained the ROM of the cervical spine effectively.

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