Judd Method C Spine

Judd Method PA Projection

It is a opposite position for Fuchs Method but the same structures demonstrating in the C1 - C2 (Dens). The advantage of this method is less thyroid radiation exposure.

Note: All patient that have cervical trauma, when attempting to move head and neck consult first the physician who read the lateral cervical spine radiograph.

Pathology Demonstrated and Exposure Factors:

Fractures or altered structures in Dens and adjoining osteal structures of the C1 ring.
Image Receptor 18 x 14 cm or 18 x 10 inches.
Use of Grid (stationary or moving)

Patient Position and Part Position Judd Method:

• Patient is in prone PA with midsagittal plane aligned or centered to Central Ray and to mid-mark line of the x-ray table or to image receptor.
• Patient chin is resting on x-ray table and slowly extend to bring mentomeatal line MML perpendicular to table.
• Adjust Central Ray as needed to become parallel with MML.
• Check for rotation of patient head.
• Central ray is parallel to MML, through the middle of occipital bone, in about 1 inch inferosuperior to mastoid tip and angles of mandible.

Collimation and Patients Respiration

Close four side collimation to C1 - C2 region.
Request patient to suspend its respiration during exposure.