A treatise on orthopedic surgery . loyed with advantage in thetreatment of sinuses and cavities which cannot be properly ^ Bier, Hyperamie als Heilmittel, Leipzig, 1905, and Schmieden, , Aug. 17, 1907. ^Gratt, Berlin, klin. Woehen., Feb. 10, 1908. TUBERCULOUS DISEASE OF THE BONES AND JOINTS. 267 drained and for the immediate evacuation of pus through asmall incision. The treatment of acute infectious processes of joints andother tissues by passive congestion has now come into generaluse. Bardenheuer is one of its most enthusiastic ^ Active CoNGESTioisr.—Active congestion i
A treatise on orthopedic surgery . loyed with advantage in thetreatment of sinuses and cavities which cannot be properly ^ Bier, Hyperamie als Heilmittel, Leipzig, 1905, and Schmieden, , Aug. 17, 1907. ^Gratt, Berlin, klin. Woehen., Feb. 10, 1908. TUBERCULOUS DISEASE OF THE BONES AND JOINTS. 267 drained and for the immediate evacuation of pus through asmall incision. The treatment of acute infectious processes of joints andother tissues by passive congestion has now come into generaluse. Bardenheuer is one of its most enthusiastic ^ Active CoNGESTioisr.—Active congestion is induced by thelocal use of heat, ordinarily hot dry air. In its simplest form the apparatus consists of an alcohol lampprovided with a long metal chimney reaching to a box of woodor metal, into which the limb is inserted through openings ateither end. The box has one or more small openings for theescape of air and moisture. The limb is usually wrapped insheet wadding, and is particularly well protected from the parts Fig. The application of ttie liot-air box for inducing active congestion. The the thermometer. A, a metal pipe projecting from the box, into which thechimney of the lamp is placed. B^ lamp chimney. (After Bier.) of the box which may come in contact with the skin. The heatis then applied, usually to about 250° or 300° F., for fromthirty minutes to an hour daily. The degree of heat is indicatedby a projecting thermometer, and it is regulated by the comfortof the patient and by the observation of its effects. Bier prefers simple boxes of wood of various shapes suitablefor the different parts of the body, lined with packing clothsoaked in a solution of water glass. He considers these asefficacious as the complicated and expensive appliances, and atthe command of all who desire to employ the treatment(Fig. 185). ^ Deutschen f. Chir., XXXV. Kongress, 1906. 268 OBTHOPEDIC SURGEBY. The effect of the heat is to induce arterial instead of venoushypersemia,
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