The long shaft where this invention the first end and has the second end in regard to the professional stay cis in order to exchange the tubular bone and at least the portion of the joint which it adjoins, (1) and the joint mechanism which is provided in the second end of the shaft (2) it includes, paralleling to that axis (10) in nested system, the length adjustment mechanism which operates (3) can provide the shaft. The shaft (1) and joint mechanism (2) is connected through the plug connection with the cone connector (18,29) which, conforms, length adjustment mechanism (3) is the design of module system, it has the cone plug connector (18,19) which, conforms to that proximal end and the distal (2036) end, furthermore it has the rotary prevention expedient (35,37) which operates making use of formal conformity.本発明は、管状骨及び隣接する関節の少なくとも一部を交換するためのプロステーシスに関し、第一端部と第二端部とを備える細長いシャフト(1)と、シャフトの第二端部に設けられる関節機構(2)とを含み、シャフトを入れ子式にその軸(10)に沿って作動する長さ調節機構(3)が設けられる。シャフト(1)及び関節機構(2)は、適合するコーンコネクタ(18,29)とのプラグ接続を介して結合され、長さ調節機構(3)は、モジュール式の設計であり、その近位端部及び遠位端部に、適合するコーンプラグコネクタ(18,19)を備え、形態適合を用いて作用する回転防止手段(35,37)を更に備える。
