| 摘要 |
The arrangement for forming a bar construction, to which a prosthesis can be fastened, may comprise: a first connecting element with a first end which has a through-opening through which an end of a fixation screw can be passed in order to fasten the first connecting element in a specific angular position in relation to an implant, and a second end which is connectable with a bar, and a second connecting element, which is connectable by a releasable connection to the first connecting element, and securing means for counteracting a separation of the two connecting elements from each other when these are connected and moved. The two connecting elements may each comprise an end that has a substantially spherical inner face and a substantially spherical outer face. The head of a fixation screw may have a first substantially spherical outer face and a second substantially conical outer face.
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