placing a target pin in a part of a metatarsal;

performing an osteotomy of the metatarsal to form a distal metatarsal part and a proximal metatarsal part;

repositioning the distal metatarsal part with the target pin;

positioning a targeting device on the target pin;

aligning the target pin with the targeting device using a visible mark;

selecting another attachment hole of the targeting device that receives a second guide wire depending on a desired distance between a first guide wire and the second guide wire;

inserting the first guide wire and the second guide wire through an attachment hole and the another attachment hole, respectively, of the targeting device and into the metatarsal; and

screwing a first cannulated fixation screw and a second cannulated fixation screw into the metatarsal by using the first guide wire and the second guide wire, respectively.