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[A new positioning board in the preparation for surgery].

The present paper describes a new aid for positioning the patient on the operating table. This aid is a hinged, radioparent board which is laid under the leg, buttocks, shoulder, or arm--folded flat--when positioning the patient. If necessary, the position of the extremities can be altered before or during the operation by varying the degree to which the flap is raised. The device is particularly suitable for surgery on the lower limbs, and has proved extremely useful in practice.