A method for obtaining a 3-dimensional image using at least one conventional 2-dimensional x-ray image, said method comprising: acquiring at least an x-ray image of a bone of interest; determining camera model to at least determine spatial values of source and at least one spatial value of bone; extracting a contour and distinct anatomical regions; identifying anatomical values in terms of 2-dimensional anatomical values; importing a pre-created 3-dimensional template; extracting silhouette vertices of said pre-created 3-dimensional template and their projections; aligning said pre-created 3-dimensional template wrt said input x-ray image; projecting said pre-created 3-dimensional template onto said acquired image plane to obtain a 2-dimensional projection model; modifying said aligned template to match said identified 2-dimensional values; determining a best matching point on said extracted contour; back-projecting each of said best matching; determining a target position; and deforming said pre-created 3-di
