<p>A bone screw including a tubular body (1) with a bone thread (5) in at least a portion of its outer wall, the tubular body having an open first end (2) and an open second end (3); wherein at the open first end (2) a plurality of cutting teeth (4) is provided and wherein at the second end (3) a structure (31, 310) for engagement with a screwing-in tool (100) is provided.</p>
