A system for determining the alignment measurement of the foot and ankle, the system comprising: receiving data representative of a three dimensional scanned image of a patient's foot and ankle while the patient was applying weight on the foot; adjusting the scanned data to correlate the three dimensional location of the foot relative to a predetermined coordinate system; detecting the three dimensional coordinates associated with at least three predetermined landmarks on the patent's foot in the scanned image; determining a ground plane in the scanned data; determining a center of a talar dome in the scanned data; and determining an ankle offset lever arm from the set of landmarks and center of the talar dome; wherein the landmarks include the first and fifth metatarsal bones in the foot and the greater tuberosity of the calcaneus, and wherein the system analyzes the scanned image using point detection to determine the approximate three-dimensional coordinates of the center of each landmark; characterized in that the system further comprises the step of receiving data representing a weight of the patient; wherein the step of determining the ankle offset lever arm involves the steps of determining an ankle offset point on the ground plane that is an orthogonal projection from the center point of the talar dome to the ground plane, determining a forefoot center point on the ground plane that is the center between the center points of the landmarks for the first and fifth metatarsal bones, defining a line extending between the center point of the landmark of the greater tuberosity of the calcaneus to the forefoot center point, and wherein the ankle offset lever arm is the length of an orthogonal projection on the ground plane from the line to the ankle offset point; and further comprising the step of determining the torque on the ankle by multiplying the weight of the patient times the length of the ankle offset lever arm. receiving data representative of a three dimensional scanned image of a patient's foot and ankle while the patient was applying weight on the foot; adjusting the scanned data to correlate the three dimensional location of the foot relative to a predetermined coordinate system; detecting the three dimensional coordinates associated with at least three predetermined landmarks on the patent's foot in the scanned image; determining a ground plane in the scanned data; determining a center of a talar dome in the scanned data; and determining an ankle offset lever arm from the set of landmarks and center of the talar dome; wherein the landmarks include the first and fifth metatarsal bones in the foot and the greater tuberosity of the calcaneus, and wherein the system analyzes the scanned image using point detection to determine the approximate three-dimensional coordinates of the center of each landmark; characterized in that the system further comprises the step of receiving data representing a weight of the patient; wherein the step of determining the ankle offset lever arm involves the steps of determining an ankle offset point on the ground plane that is an orthogonal projection from the center point of the talar dome to the ground plane, determining a forefoot center point on the ground plane that is the center between the center points of the landmarks for the first and fifth metatarsal bones, defining a line extending between the center point of the landmark of the greater tuberosity of the calcaneus to the forefoot center point, and wherein the ankle offset lever arm is the length of an orthogonal projection on the ground plane from the line to the ankle offset point; and further comprising the step of determining the torque on the ankle by multiplying the weight of the patient times the length of the ankle offset lever arm.