If a model has a physics freakout, you can bring her back using the red "physics explosion recovery" button from the model's control&physics 1 tab. That puts her back to the default pose.
If you then want to rest the scene, so she is located and positioned where she is supposed to be, your fastest option would be to merge load (the button is on the main UI> file (open/save) screen) the original scene. That will restore everything without having to reload the entire scene.