Interim joint prosthesis

An interim joint prosthesis configured to be inserted into a long bone and used for a replacement of a joint endoprosthesis to be explanted, said interim joint prosthesis comprising:

• (i) a main body arranged to be supported on the long bone and configured as a placeholder for a joint section of the joint endoprosthesis to be explanted, wherein the main body comprises a main body coupling portion, the main body coupling portion being a through-hole, and further comprising at least two clamping wings which are displaceable perpendicular to a longitudinal direction of the main body relative to the main body, and
• each of the at least two clamping wings comprises a stop which extends in the longitudinal direction of the main body at least on one side of the main body beyond the main body;
• (ii) an integrally formed shaft comprising a shaft coupling portion and a longitudinal axis, wherein
• a portion of the shaft, the portion having a constant cross-section, is slidably arranged in the through-hole along the longitudinal axis of the shaft, whereby the shaft can protrude on both sides of the main body to be implanted into sections of adjoining long bones, and
• (iii) a shaft fixing element configured to fix the shaft arranged in the through-hole to the main body.