Method and apparatus to assist in the treatment of bone fractures

Method of assisting a user in the treatment of bone fractures with a stabilizing implant, wherein a database is used in which a plurality of comparison data sets are stored, each comprising at least one 3D image data set of at least one bone, each comparative data record is assigned to an object under examination, the a comparison implant was implanted before the recording of the 3D image data set, comprising the steps of: - receiving at least one two-dimensional X-ray image of a target bone to which the stabilizing implant is to be attached, by an X-ray device, - 2D-3D registration of the X-ray image with 3D image data sets a rate determined by a selection criterion selecting the comparison data sets or all of the comparison data sets and calculating a deviation value for each comparative data record, which is a measure of the deviation of the registered to the X-ray image 3D image data set from the x-ray image, by a computing device . - determination of a reference data set by selecting the comparison data set comprising the 3D image data set having the lowest deviation value, by the computing device, Determining at least one implantation parameter describing a parameter of the implant and / or a fastening element for securing the implant, using the reference data set and / or presentation of data of the reference data set on a display device by the computing device.