Method for determining deviations of predetermined position of markers at proximal mark nail end of implant for maintenance of crack in long bones of patient, involves utilizing determined deviation for correction of target guidance

摘要

The method involves providing a target mechanism (1) with parts of different form shapes laminarily connected with one another at a defined distance and stably connected with a carrier of invisible characteristic i.e. markers, at a proximal mark nail end at a defined distance and aligned on the characteristic in an undeformed implant (2). Deviation of expected position of the characteristic is determined from real position from an image of a radiograph from position of geometrical forms of the mechanism. The determined isometric deviation is utilized for correction of target guidance. An independent claim is also included for a device for determination of deviations of a predetermined position of an invisible characteristic by material deformation of implants.