What tube tilt angle is used for an AP Semiaxial Clavicle projection?

For an AP Semiaxial Clavicle projection, a tube tilt angle of 10° cephalad is appropriate. This angle is used to adequately project the clavicle above the scapula in order to minimize superimposition and capture a clearer image of the clavicle's anatomy. The cephalad angle helps to align the X-ray beam perpendicular to the long axis of the clavicle, assisting in better visualization of its curvature and articulation points.

This positioning technique is essential for diagnostic clarity, particularly in cases of trauma or disease affecting the clavicle. The choice of a 10° cephalad angle is based on anatomical considerations, allowing for proper imaging of the clavicle without distortion while ensuring that the surrounding structures do not obscure the image.