MRF的复位机制为以椎板钩与椎板接触点为支点,利用椎弓根螺钉将滑脱椎体向后上提拉,使椎体前移复位。
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The hook was clamped by two screw nuts on the screw, and these makes up of the retractor finally.
不锈钢丝拉钩经两个螺母夹持固定在磁力底座的螺栓上,组成简易的磁力底座拉钩;
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MRF的复位机制为以椎板钩与椎板接触点为支点,利用椎弓根螺钉将滑脱椎体向后上提拉,使椎体前移复位。
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The hook was clamped by two screw nuts on the screw, and these makes up of the retractor finally.
不锈钢丝拉钩经两个螺母夹持固定在磁力底座的螺栓上,组成简易的磁力底座拉钩;
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