Surgical guidance device

A surgical tool (100) for forming a pilot bore in a bone structure comprising:

• a cannulated hand grip (16), the cannulated hand grip having a first end (18) and a second end (20), the first end (18) of the cannulated grip adapted for removable attachment to a proximal end of a cannulated member (11), the second end (20) including a barrel (26), the barrel (26) including helical threads extending at least partially around an inner surface of the barrel (26),
• a jack member (56) having a threaded shank portion (55), an enlarged diameter head portion (51) and a bore (57), the threaded shank portion (55) having threads sized to cooperate with helical threads of the barrel (26), the bore (57) sized to slidably cooperate with a stem portion (66) of a slide assembly (24),
• the slide assembly (24) including a slide head (64), stem portion (66), and wire lock assembly (72), the slide assembly (24) including a wire lock assembly (72) for securing a guide wire (12) within the slide assembly (24) to move within the surgical tool (100) within the slide assembly (24),
• the guide wire (12) constructed from a material having sufficient column strength for penetrating a bone, the guide wire (12) extending through the jack member (56), the cannulated hand grip (16) and the cannulated member (11),
• wherein the rotation of the jack member (56) changes the length of the surgical tool (100) without rotation of the slide assembly (24) and the guide wire (12).