The Astrolabe’s Arrow Plate System 3,5 offers anatomically shaped plates for the medial arch of the foot allowing maximum stability and its indicated for: lapidus arthrodesis, revision of the lapidus arthrodesis, revision of the base osteotomy of the metatarsal 1, charcot foot, stabilization of the lateral column, lisfranc stabilization / cotton osteotomy, lapidus revision, arthrodesis of the medial column / stabilization of the medial column, charcot stabilization / charcot reconstruction of the medial column, multiple arthrodesis, revision of pseudo arthrosis with splinter/wedge plastic.