目的评价EH复合型颈椎螺纹融合器(EHTFC)的有效性和安全性。
Objective To evaluate the effectiveness and safety of the cervical threaded fusion cages of EH composite type (EHTFC).
目的：评价应用异体骨螺纹融合器(ATFC)行颈椎前路融合的疗效，观察融合器的转归。
Objective: To evaluate the efficacy of allograft threaded fusion cage (ATFC) and observe the turnover of ATFC in anterior cervical fusion.
笼箱外形类似于椎间螺纹穿通融合器（TFC） ，上、下两面具有螺纹，在两侧有切口弹簧，内腔似扁橄榄形；
The cage with flat olive bore looks similar to the contour of the Ray-TFC, and has grooving spring on lateral sides.
笼箱外形类似于椎间螺纹穿通融合器（TFC） ，上、下两面具有螺纹，在两侧有切口弹簧，内腔似扁橄榄形；
The cage with flat olive bore looks similar to the contour of the Ray-TFC, and has grooving spring on lateral sides.
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