Vorrichtung zur intraoperativen Messung der mechanischen Festigkeit einer in einem Knochen implantierten Endoprothese

摘要

The apparatus (25) allows the surgeon to intraoperatively measure the mechanical stability of an orthopedic prosthesis (10), which can be implanted in a bone (13), by means of forced insertion, in a cavity (12) of the bone (13), of an anchoring element (11) of the prosthesis (10). The apparatus (25) comprises; means of application (2) of a mechanical load, designed to apply an appropriately predetermined load to the anchoring element (11) or to the relative receptor bone (13); and movement detection and measuring means (4) to detect and measure the relative slipping that occurs between the anchoring element (11) and the receptor bone (13) when the test load is applied.