| 摘要 |
An intervertebral implant (50) having a tabbed configuration is provided. Th e intervertebral implant includes a substantially cylindrical body portion (52 ), and a pair of radially extending tabs (62, 64). The radially extending tabs may be provided as a single or double pair (66, 68), may assume various shapes, and configurations for engaging the interior of a bore (E) formed between adjacent vertebrae (X, Y). A through bore (60) or plurality of throu gh bores extend from the top surface (58) of the implant to the bottom surface (70) of the implant. The implant may be formed from a cortical ring (C) cut from the diaphysis of a long bone (D) by milling. Alternatively, the implant may be formed of any biocompatible material having the requisite strength requirements via any known process, i.e., molding. There is also disclosed a method of insertion of the implant including forming a stepped bore between adjacent vertebrae, inserting the implant between adjacent vertebrae with ta bs in alignment with the spaced defined by the adjacent vertebrae, and rotating the implant such that the tabs are rotated within an enlarged or stepped portion of the bore to secure it therein.
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