. American practice of surgery ; a complete system of the science and art of surgery . czema, club nails, altered sensation, pain, stiffness, smooth polished skin,loss of hair, oedema, with burning sensations and marked hyperaesthesia^etc.; that of the muscles, by atrophy, degeneration, contraction, or extent of the lesion may be judged by the loss of muscular power or ofsensory recognition, and by the presence or absence of muscular contractilityunder electrical excitement. Effusions into the joints are occasionally seen,and so also are the degenerations that simulate the spinal


. American practice of surgery ; a complete system of the science and art of surgery . czema, club nails, altered sensation, pain, stiffness, smooth polished skin,loss of hair, oedema, with burning sensations and marked hyperaesthesia^etc.; that of the muscles, by atrophy, degeneration, contraction, or extent of the lesion may be judged by the loss of muscular power or ofsensory recognition, and by the presence or absence of muscular contractilityunder electrical excitement. Effusions into the joints are occasionally seen,and so also are the degenerations that simulate the spinal arthropathies ob-served in tabes. The treatment of these trophic changes is exceecUngly tedious,since all forms of local applications vrdl be unavailing. Nerve-stretching and SURGICAL DISEASES AND WOUNDS OF NERVES. 465 neurectomy have also failed, and even amputation, unless done at the point ofnerve involvement, does not assure relief. Nerve Degeneration.—A divided nerve speedily degenerates, the processtaking place most rapidly in the peripheral portion. The secondary so-called. *? - c,-1. , . .e -,,:/ -»a^^«-js_2,_^ Fig. 133.—Resection of Three-Quarters of an Inch of the Sciatic Nerve of a Dog; the Gap betweenthe Divided Ends was Bridged by a Compact Bundle of Four Strands of Chromicized Catgut. Speci-men examined on the forty-sixth day after the operation. (From authors article in The Interna-tional Medical Magazine, April, 1894.) The upper fragment (on the left-hand side) terminates in a bulb of fibrous tissue, which containsnumerous nerve fibrils radiating like a fan from the termination of the nerve fibres. The sheath iscontinued into the fibrous tissue of the bulb, being considerably thickened before the new fibres splitup. Scattered through the fibrous tissue are numerous nerve fibrils, making their way toward thelower fragment (on the right-hand side). Below—, toward the right—are seen drops of degen-erated myelin. (Examination made by Dr. W. S. Carter.)


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsurgery, bookyear1906