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The scapholunate angle is measured on a lateral radiograph of the wrist.
Notes: The scaphoid line (S) is drawn tangential to the scaphoid along the palmar aspects of the distal and proximal poles of the bone. The lunate line (L) is drawn perpendicular to a line drawn tangential to the palmar and dorsal points of the lunate. The scapholunate angle is measured between the two lines.
