| 摘要 |
PROBLEM TO BE SOLVED: To enable a spacer to be mobile, the spacer being produced such that the spacer neither worsens the mobility of the joint nor causes pain to the patient due to abrasion at the articulated sliding surfaces of the spacer.SOLUTION: A device for in-situ production of an articulated spacer comprises punch surfaces 1, 11, 21 for forming an articulation surface of a spacer in a bone cement 18. The bone cement 18 is arranged on a bone surface for fixation of the spacer. The punch surfaces 1, 11, 21 have a negative shape of the articulation surface to be produced, and the surface forming the negative shape is open on the side, at least in part, such that the bone cement 18 can be pushed toward the side, away from the articulation surface to be formed. |
