A computerised visualisation method, the method comprising: displaying, on a graphical user interface, an image of an anatomical structure, wherein the anatomical structure comprises a lateral view of the femur within a human knee joint, wherein the lateral view displays the distal condyle surface of the femur; identifying, via an input device on the graphical user interface, a set of landmark locations identifying respecting anatomical positions within the displayed image, wherein identifying a set of landmark locations comprises: receiving, as the first known bone location, a selection of an anterior edge of the view of the femur displayed within the image; receiving, as the second known bone location, a selection of a posterior edge of the view of the femur displayed laterally within the image, a line defined between the first known bone location and the second known bone location defining a plane that substantially aligns with a patellar surface of the femur, and; receiving, as a third known bone location, a selection of the distal condyle surface of the femur within the image; displaying a graphical overlay over the image of the anatomical structure, placement of the graphical overlay based on the set of landmark locations wherein displaying a graphical overlay over the image comprises: displaying an overlay grid over the view of the distal end of the femur within the graphical user interface, the overlay grid having a width rendered between the selected first and second known bone locations, and having a height that extends to the selected third known bone location; and displaying at least one localization marker within the graphical overlay, the at least one localization marker identifying a location for performing a surgical operation related to repair of a ligament of the human knee joint; characterised by showing a position of an awl or a guidewire in the image of the lateral view of the femur within the human knee, relative to the localization marker shown within the overlay. displaying, on a graphical user interface, an image of an anatomical structure, wherein the anatomical structure comprises a lateral view of the femur within a human knee joint, wherein the lateral view displays the distal condyle surface of the femur; identifying, via an input device on the graphical user interface, a set of landmark locations identifying respecting anatomical positions within the displayed image, wherein identifying a set of landmark locations comprises: receiving, as the first known bone location, a selection of an anterior edge of the view of the femur displayed within the image; receiving, as the second known bone location, a selection of a posterior edge of the view of the femur displayed laterally within the image, a line defined between the first known bone location and the second known bone location defining a plane that substantially aligns with a patellar surface of the femur, and; receiving, as a third known bone location, a selection of the distal condyle surface of the femur within the image; displaying a graphical overlay over the image of the anatomical structure, placement of the graphical overlay based on the set of landmark locations wherein displaying a graphical overlay over the image comprises: displaying an overlay grid over the view of the distal end of the femur within the graphical user interface, the overlay grid having a width rendered between the selected first and second known bone locations, and having a height that extends to the selected third known bone location; and receiving, as the first known bone location, a selection of an anterior edge of the view of the femur displayed within the image; receiving, as the second known bone location, a selection of a posterior edge of the view of the femur displayed laterally within the image, a line defined between the first known bone location and the second known bone location defining a plane that substantially aligns with a patellar surface of the femur, and; receiving, as a third known bone location, a selection of the distal condyle surface of the femur within the image; displaying a graphical overlay over the image of the anatomical structure, placement of the graphical overlay based on the set of landmark locations wherein displaying a graphical overlay over the image comprises: displaying an overlay grid over the view of the distal end of the femur within the graphical user interface, the overlay grid having a width rendered between the selected first and second known bone locations, and having a height that extends to the selected third known bone location; and displaying at least one localization marker within the graphical overlay, the at least one localization marker identifying a location for performing a surgical operation related to repair of a ligament of the human knee joint; characterised by showing a position of an awl or a guidewire in the image of the lateral view of the femur within the human knee, relative to the localization marker shown within the overlay.