External fixator deformity correction systems and methods

摘要

Systems and methods for planning and optimizing bone deformity correction treatments using external fixators. A computer system generates a display of a tiltable ellipse superimposed on digital medical image(s) (radiograph), the ellipse representing a ring of an external fixator attachable to the patient's bone. Based on axial and azimuthal ring rotation user input, the system calculates a 3D position of the resulting graphical representation of the ring. User input controls translation of ring(s). Strut position user input identifies 3D positions for the external fixator struts. Based on graphical input defining 3D biological rate-limiting points for treatment, the system calculates a 3D bone correction speed and/or a number of treatment days, and generates a graphical simulation of this treatment. Further, the system generates a correction plan specifying for each strut a daily sequence of strut lengths and preferred strut sizes, to minimize strut replacements.

主权项

1. A computer-implemented method comprising employing at least one processor to execute instructions to:
generate a display of an ellipse superimposed on a display of at least one digital medical image, the at least one digital medical image displaying a view of a patient's anatomical structure, the ellipse being a graphical representation of a ring of a synthetic external fixator representing a physical external fixator attachable to the patient's anatomical structure, the physical external fixator comprising at least two rings interconnected by a plurality of struts; receive ring rotation user input entered graphically on the display of the ellipse superimposed on the display of at least one digital medical image, the ring rotation user input controlling an azimuthal rotation of the ring; and in response to receiving the ring rotation user input, generate a display of a resulting graphical representation of the ring superimposed on the display of the at least one digital medical image, the resulting graphical representation of the ring reflecting the azimuthal rotation of the ring.