A curved positioning and insertion instrument for inserting a guide wire (50)into the femur has a curved guide tube (2) with a distal end to be placed onthe trochanter (41) and/or the medial muscle (45) and a proximal end forinserting a guide wire (50). The instrument also has a holding arm (4) thatlinks the guide tube (2) to a handle (5). A positioning hook fitted with atleast one correction bore (7, 8, 9, 10, 12) for receiving the guide wire (50)or another guide wire is arranged at the distal end of the guide tube (2).This structure makes it possible to easily insert further or additional guidewires (50) relative to a reference guide wire (50).
