. General surgical pathology and therapeutics, in fifty-one lectures .. . etc.; if a tissue be very vascular when itossifies, a porous bony substance must be formed, for the more vesselsthere are the more holes there will be in the bones. But in arthritisdeformans the ossification is not preceded by any considerable newformation of vessels, the tissues ossify mostly just as they are; perios-teum, tendons, even the capsule, ligaments, and muscles, and all thisgoes on very slowly; this is why the bone formed is firmer. Sometimesalso in the vicinity of the bone in the midst of the subserous cellu
. General surgical pathology and therapeutics, in fifty-one lectures .. . etc.; if a tissue be very vascular when itossifies, a porous bony substance must be formed, for the more vesselsthere are the more holes there will be in the bones. But in arthritisdeformans the ossification is not preceded by any considerable newformation of vessels, the tissues ossify mostly just as they are; perios-teum, tendons, even the capsule, ligaments, and muscles, and all thisgoes on very slowly; this is why the bone formed is firmer. Sometimesalso in the vicinity of the bone in the midst of the subserous cellulartissue detached points of bone form, which for a long time remainisolated round pieces; subsequently they may perhaps unite with theother bony masses; then they look as if glued on, and from the form POLYARTICULAR CHRONIC RHEUMATISM. 537 of the bony groAvth we may often tell the course of its periarticular bony formations may cause entire dislocation ofthe joint and force it into an abnormal, half-luxated position; they Fig. 100. Fig. 101. Fig. Figs. 100 and 102, osteophytes in ar-thritis deformans. Fig. 100, low-er end of the humerus, dimin-ished ; «., osteophytes; 6, smooth-ed end of the bone. Fig. 101, carious elbow-joint,fungous inflammation ofthe joints, stalactite-likeosteophytes, diminished. % 102, os meta-carpi, I a andb, as in Fig. 10U. may even render it entirely immovable. Sometimes these osseousformations grow into the joint, loosen from their attachments, andbecome loose bodies in the joint; of which we shall speak , chronic dropsy may accompany this affection also, and youmay readily understand that, from all these concurring circumstances,the joint may become so deformed as justly to deserve the name arthritis deformans. But, I again repeat, that all these pathologi-cal changes never lead to suppuration. We now come to the clinical appearance of this peculiar to my experience, I should distinguish three
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