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This term is applied to an affection of the tarsus which is usually characterized by the existence of an exostosis on the mesial and inferior portion of the hock. There is also included under this name, articular inflammation wherein no external evidence is shown. Spavin lameness has long been recognized and much has been written upon this subject.
Chronic cases do not occasion serious pain or constitutional disturbances, but do interfere with locomotion in direct proportion to the existing articular inflammation and periarticular hypertrophy of ligamentous and tendinous structures. Treatment. If possible, keep the subject absolutely quiet, employing the sling if necessary.
The horse is still in use and is absolutely free from lameness. Case 8. A two-year-old brown gelding with a wire-wound opening the scapulohumeral joint. This wound was large enough to expose to view the articular portion of the humerus. The same treatment as that given case No. one was instituted and in ninety days the colt was practically well. Case 9.
This type of ringbone as well as the articular may occur "high" or "low." With the traumatic form of ringbone, all consequences, as to the size and form the exostosis is to assume, depend upon the nature and extent of the injury. Rachitic ringbone is frequently observed in some sections of the country and does not ordinarily cause much if any lameness.
Short, upright, pasterns receive greater concussion during fast travel on hard roads than do the longer more sloping and well formed extremities. Those who are advocates of the theory that this type of osteitis with its complications has its origin in the articular portion of the joint, claim that the upright pastern constitutes an important tendency toward ringbone.
F. Many, very many, analogous cases have been published. I repeat, therefore, that I am personally unacquainted with the effects of this medicine in acute articular rheumatism, and that I have not thus far been tempted to employ it.
Ligaments which have to do with the locomotory apparatus are, for the most part, inelastic structures which are composed of white fibrous tissue and serve to join together the articular ends of bones; to bind down tendons; and to act as sheathes or grooves through which tendons pass, and as capsular membranes for retention of synovia in contact with articular surfaces of bones.
Wounds or defects in articular cartilage are repaired by fibrous or osseous tissue derived from the subjacent cancellous spaces. Transplantation of Bone Bone-grafting.
#Chronic Rheumatism.# This term is applied to a condition which sometimes follows upon acute articular rheumatism in persons presenting a family tendency to acute rheumatism or to inflammations of serous membranes, and manifesting other evidence of the rheumatic taint, such as chorea or rheumatic nodules.
The rounded heads of bones which move in them are thus more securely held in their sockets. Besides these structures, the muscles also help to maintain the joint-surfaces in proper relation. Another essential to the action of the joints is the pressure of the outside air. This may be sufficient to keep the articular surfaces in contact even after all the muscles are removed.
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