作者: Beat Lechmann , Roger Buerki
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摘要: A bone fixation element (10) for use in spinal facilitates insertion of a longitudinal rod (45) rod-receiving channel (26) formed the element. The engages coated rod, preferably dynamic made from generally non- biocompatible material such as nickel, cobalt chromium or Nitinol. incorporates first (120) and second (140) protectors to contact coating on when is received receiving are constructed having hardness that less than rod.