| 摘要 |
<p>This invention is anatomically contoured anterior cervical plates (2) with bone ingrowth surfaces, providing for intersegmental compressive pre-loading, and a rigid and locked interface to all of the bone screws (30), with those engaging the vertebrae deployed in highly convergent pairs. The bone screws (30) have a tapered self-tapping leading end, an increasing root diameter with a generally constant outer diameter with a thread that is narrow and sharp throughout, and an enlarged head portion capable of an interference fit to the receiving holes (6) in the plate (2). Instrumentation consists of plate holders (130), a compression apparatus (100), and a pilot hole forming device (60) that interlocks with the plate.</p> |
