Apparatus for the automated footprints detection of a patient in a seated or standing position, and / or when the patient is wearing or not an orthotic, includings: - a seating position, adjustable in height for said patient; - a platform for supporting the feet of said patient, provided with at least two degrees of freedom, and which is positioned at the front of said seating position, at a lower level with respect to it; - an alignment system allowing a patient leg and its corresponding foot to be aligned in the three space planes in order to determine the correct tibia verticality, wherein said alignment system comprises at least two markers (M1-M5), wherein at least one first marker (M1,M2) is placed at the knee, frontally at the midpoint of the segment joining the lateral and medial femoral condyle, and at least one second marker is placed at the space between the second and the third metatarsal; - a system for properly positioning the foot on said supporting platform which includes at least two micrometric adjustment devices, also known as turrets, placed laterally with respect to the foot and able to slide on a track along a platform direction, wherein at least one of said turrets is able to allow at least one first adjustable pressure pad to be applied in contact with the talus and / or scaphoid inside the foot and at least another one of said turrets is able to allow at least one second adjustable pressure pad to be applied in contact with the calcaneus and / or cuboid outside the foot; - a continuous measurement system able to numerically detect the data relating to said leg and foot alignment in the three space planes; - a central unit capable of receiving said data detected by said continuous numerical measurement system and capable of possibly providing the numerical indications and movement direction necessary for the correct foot repositioning. - a seating position, adjustable in height for said patient; - a platform for supporting the feet of said patient, provided with at least two degrees of freedom, and which is positioned at the front of said seating position, at a lower level with respect to it; - an alignment system allowing a patient leg and its corresponding foot to be aligned in the three space planes in order to determine the correct tibia verticality, wherein said alignment system comprises at least two markers (M1-M5), wherein at least one first marker (M1,M2) is placed at the knee, frontally at the midpoint of the segment joining the lateral and medial femoral condyle, and at least one second marker is placed at the space between the second and the third metatarsal; - a system for properly positioning the foot on said supporting platform which includes at least two micrometric adjustment devices, also known as turrets, placed laterally with respect to the foot and able to slide on a track along a platform direction, wherein at least one of said turrets is able to allow at least one first adjustable pressure pad to be applied in contact with the talus and / or scaphoid inside the foot and at least another one of said turrets is able to allow at least one second adjustable pressure pad to be applied in contact with the calcaneus and / or cuboid outside the foot; - a continuous measurement system able to numerically detect the data relating to said leg and foot alignment in the three space planes; - a central unit capable of receiving said data detected by said continuous numerical measurement system and capable of possibly providing the numerical indications and movement direction necessary for the correct foot repositioning.