Question

What steps are taken in order to position a Navicular projection properly?

Answer 1

To properly position a navicular projection, the patient's foot should be dorsiflexed, the central ray should be perpendicular to the base of the third metatarsal, and there should be no rotation of the foot. This approach visualizes the navicular bone and its articulations accurately.

Step-by-step explanation:

The navicular projection is a specific X-ray view used to visualize the navicular bone in the foot. To properly position a navicular projection, certain steps must be followed:

1. Position the patient's foot in a dorsiflexed position to bring the navicular into profile.
2. Align the central ray perpendicular to the base of the third metatarsal.
3. Ensure that there is no rotation by checking the alignment of adjacent metatarsals and cuneiforms.

When done correctly, this projection allows for clear visualization of the navicular bone and its articulations with the talus anteriorly and the three cuneiform bones (medial, intermediate, and lateral). These articulations are important as they help to create the transverse curvature of the foot. Additionally, this view should show the navicular's articulation with the medial side of the cuboid bone.