— \V0£«> HI c=z/fto. / "V 7 1.\ & GS (Department of bl9^V£_ 1 “j | , - /• - \ Illinois Imliistr LIBRARY OF~V | Ct ry ffi stria! University, | CHAMPAIGN, ILL. Books are not to be taken from the Library Room. J T) # VETERINARY MEftOMt LIBRARY , •- * A \> ♦ i THE A MONTHLY JOURNAL OF VETERINARY SCIENCE FOR 1864. VOL. XXXVII — VOL. X, fourth series. EDITED BY * PROFESSORS MORTON AND SIMONDS. Ars Veteriri«ria post medicinam second a est. — Vegetius. LONDON : PRINTED BY J. E. ADLA.RD, BARTHOLOMEW CLOSE. PUBLISHED BY LONGMAN, GREEN, LONGMAN, ROBERTS, AND GREEN, PATERNOSTER ROW. •» BRIKTK1) B? J. E. ADLARD, BARTHOLOMEW CLOSE, E.C. VOL. XXXVII. No. 433. JANUARY, 1864. Fourth Series. No. 109. Communications and Cases. TWO CASES OF PARALYSIS IN THE HORSE, ARISING FROM SPINAL APOPLEXY, AND ONE RESULTING FROM AN INJURY TO THE SPINE. By Professor Varnell, Royal Veterinary College, London, I have thought that a brief account of the following cases may not be uninteresting to the readers of the Veterinarian , more especially to the younger members of our profession, as it will be seen that they are not of a common character, nor of frequent occurrence. The difference in the length of time, in the first case, as compared with that of the second, before the like result was produced, adds considerably, in a pathological point of view, to their value. To obtain as much of the history of the first case as I pos¬ sibly could, I wrote to Mr. H. Withers, the owner of the horse, who kindly forwarded me the following letter : — 242, Oxford Street, Nov. 9, 1863. My dear Sir, — In compliance with your wish, I send you the history of the bay horse you were kind enough to examine before he was destroyed, and subsequently to make a post-mortem examination of his carcass. I bought him, seven years ago, to work in a carriage ; he was then five years old, but was found afterwards to be of such an irritable and restless disposition, as not to be sufficiently quiet for the purpose. In consequence of this I put him to work in the ‘ forage van,’ at which he continued up to the 8th of September of the present year, when he was found to be lame. The lameness was but slight at first,; nevertheless, I sent him to the farm for rest. I should have observed, that about the 12th or 13th of August last he was noticed to go slightly lame of the off hind leg. When he was sent to the farm lie was at once put into a XXXVII. 1 2 PARALYSIS IN THE HORSE. loose box, and although lie did no work, lie nevertheless lost his spirits, and the lameness became gradually worse, assuming a different character. At first it was not marked by any peculiarity, but afterwards the animal seemed to lose the power of advancing the limb, and dragged it after him, with the foot turned outwards, thus indicating that the whole of the muscles of the hind quarter and leg were paralysed. When lie moved, it was in a sidelong direction. On the 29th of September I sent the horse to the College, thinking the case might be of some interest to the pro¬ fession. I have never been able to ascertain that he had had a fall, nor that he had ever been thrown out of work, excepting for a few days only, and then on account of a sore throat. I am, my dear Sir, Yours truly, &c. In commenting on this affection I would observe that I am not about to write an elaborate paper on paralysis clue to spinal apoplexy, although the subject is a very inviting one, but simply to record a few facts relative to the history, symptoms, and post-mortem appearances of the two following cases. The first I shall describe will be that of the horse referred to in the foregoing letter. I first saw him as he was being led into the College yard, and was at once struck with the idea that his lameness was not of an ordinary character. The symptoms, although unusual, nevertheless carried the mind at once to the seat of the disease. There could be no doubt of its being an affection of the pos¬ terior half of the spinal cord; but to what extent or of what nature it might be, I could form no definite con¬ ception. The muscles of the lumbar region of the side im¬ plicated, as well as those of the hind extremity, were appa¬ rently paralysed; so that when the horse was made to progress, the affected limb was drawn after him in a way clearly indicating a total loss of muscular power. The muscles of the same region of the opposite side of the bod}7, from not being affected, or at least not to the same extent, produced a peculiar curve of the spine which gave the horse a strange, grotesque appearance. The animal was placed in a large loose box, not with a view, however, of putting him under treatment, for I considered the case hopeless, but for the purpose of watching the progress of the disease. On the second day after his admittance he either lay or fell down in the box, and was evidently unable to rise again of himself. He was therefore assisted, hut when placed upon his legs he could not maintain a standing position. Both hind extremities had now become similarly affected, so far as loss of muscular power was concerned ; hut the side first paralysed presented a condition quite different to the other. 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