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The patient is placed in the beach chair position; the arthroscopy tower should be away from the C-arm. The C-arm is introduced in the field from the opposite side. Ten to 15 pounds of traction are applied to the affected arm with a traction device during the arthroscopic procedure. The traction should be eliminated when obtaining Grashey radiographs; this maneuver will allow the scapula to “fall back” and make the radiographic Grashey view of the glenoid more accurate.
