1. A method for evaluating at least one image data record of a region of a patient including at least one joint by a computer device, that the method comprising: recording the at least one image data record of the region; segmenting, by the computer device, the recorded at least one image data record with respect to at least one mechanically relevant component of the joint in order to determine segmentation information; at least one of generating, by the computer device, a patient movement model based upon the determined segmentation information, wherein a closest database movement model is determined by comparison with a database including a plurality of different movement models and wherein the patient movement model is complemented by transferring information, missing in the patient movement model, from the database movement model, and selecting, by the computer device, the patient movement model from a database of movement models, wherein a closest corresponding movement model is selected from the database with respect to the segmentation information of the anatomy of the patient as the patient movement model; determining, by the computer device, joint information relating to the motions of the joint from the at least one of the generated and selected patient movement model, the joint information providing motions of the joint missing from the patient movement model by extrapolating mechanical movement curves of the joint for positions within a range of mechanical motion of the joint which were not recorded; determining, by the computer device, at least one second position of the joint through simulation during the generation of the patient movement model or during the selection of the patient movement model; comparing at least one first position of the joint and the at least one second position to the segmentation information of at least one further image data record; modifying the patient movement model that is stored in the database of movement models if the comparing indicates that the patient movement model deviates from the image data record, the adapted patient movement model that is stored being an improved representation of the segmentation information utilized in a later simulation to determine the second position of the joint; and generating an anatomical chart, on a display device, the anatomical chart illustrating the joint and being interactive such that a user can vary the displayed joint through the mechanical movement curve of the joint including the motions determined through extrapolation.