Disclosed is an adjustable wedge for insertion into a bone. The adjustable wedge can include a first arm, a second arm, and an adjustment member. The first arm can have a first end and a second end. The second arm can have a third end and a fourth end. The third end of the second arm can be movably connected to the first end of the first arm. The adjustment member can be in contact with the first arm and the second arm. The adjustment member can be configured to cause an increase or a decrease in a distance between the second end and the fourth end.