File:The horse, its treatment in health and disease with a complete guide to breeding, training and management (1906) (14585643548).jpg

Identifier: horseitstreatm05axej (find matches)
Title: The horse, its treatment in health and disease with a complete guide to breeding, training and management
Year: 1906 (1900s)
Authors: Axe, J. Wortley
Subjects: Horses
Publisher: London, Gresham Pub. Co.
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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onesof the face enlarge, the teeth become loose in theirsockets and more or less displaced. At this timemastication is imperfectly performed, nutrition isimpaired, and symptoms of constitutional derange-ment appear and continue to become more andmore severe to the end. In fatal cases the dura-tion of the disease extends from two to eightmonths or longer. Treatment.—Osteo-porosis is usually fiital.It is worthy of note, however, that a case givenup to the writer was returned cured after under-going three courses of iodide of potassium andnux vomica at intervals of three or four weeks. Post-mortem Examination.—After death no special lesions are found to exist in the ab-dominal or thoracic viscera. Many or all thebones of the skeleton are enlarged (fig. 323),spongy in texture, and soft in consistence. The capsular membranes of the joints of theextremities are much thickened, and the articular ends of the bones are denuded of their cartilage, and present a worm-eaten appearance. SPAVIN
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Fig. 323.—Osteo-porosis Metacarpals of horse affected bythe disease. The term spavin is applied to two distinct forms of enlargement ofthe hock, one being a bony excrescence (bone-spavin), and the other adistension of the joint capsule with fluid (bog-spavin). Spavin is alsospoken of as occult when the action declares the hock to be the seat ofmischief in the absence of any outward physical change. Bog-spavin isdealt with in the section on Di-seases of Joints. DISEASES OF BONES 217 BONE-SPAVIN A bony outgrowth on the inner and lower part of the hock is termeda bone-spavin (fig. 324). The enhirgement usually appears towards the front, but it may occupya backward position, or extend from front to back. Spavins vary in sizeas well as in position. Sometimes they are small and with difficultyidentified, at others theyreach a considerable size.The same variation ap-pears in respect to form.They may present them-selves as rounded, or moreor less pointed and ir-regular swellings, or as apro

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