结论环锯减压后如不植骨有可能不融合或畸形愈合。
Bone graft and fusion is essential for prevent the possible non union or mal union of decompressed segement.
方法： 采用前路环锯截骨、长窗减压，在牵引下植入自体长条形髂骨。
Methods: After anterior trephination osteotomy and decompression, long auto bone graft was obtained from the ilium and was grafted under traction.
目的比较单纯环锯减压柱状植骨与椎体次全切除植骨加内固定治疗脊髓型颈椎病的效果。
Objective:To compare the value between subtotal resection of vertebral body with internal fixation and simple trephine decompression in treatment of CSM.
结论应用ZDS旋转推进式环锯行颈椎前路减压融合术治疗颈椎外伤、颈椎间盘突出症可获得较好的疗效，且操作简单、安全。
Conclusion in the treatment of cervical trauma and cervical disc herniation, the procedure of anterior decompression and fusion using ZDS trepan can be simpler, safer and more effective.
干瓦刀片连续环叶片芯片采用无削减瓷砖锯，直角研磨机和圆锯。
Dry tile blades are continuous-rim blades used for chip-free cutting on tile saws, right-angle grinders and circular saws.
可转位加工工具（切削） 、圆棒、环刀、圆盘形锯、钻孔工具、车刀、导向槽、刀片。
Rotating machining tools ( cutting ), round rods, circular knives circular saws, countersinking tools, turning tips, guide gibs, knive blades.
可转位加工工具（切削） 、圆棒、环刀、圆盘形锯、钻孔工具、车刀、导向槽、刀片。
Rotating machining tools ( cutting ), round rods, circular knives circular saws, countersinking tools, turning tips, guide gibs, knive blades.
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