Clinical Trial on Frozen Shoulder Using Bilateral Shoulder Radiography in Different Position

"1. Patient standing with the tube in front and 105 cm far from the shoulder radiating perpendicular to the cassette in the back, both arms hanging aside the trunk in 0 degrees of arm abduction, 0 degrees of rotation and 0 degrees of extension with the thumb facing forward to obtain true bilateral shoulder anteroposterior view. Voltage and exposure time differs regarding each person's body mass.~2. In the same position, the patient only elevates the arm up to 90 degrees of abduction."