. General surgical pathology and therapeutics, in fifty-one lectures .. . , but finallyit breaks off and then liesloose in the joint. But by farthe most frequent form of thesearticular bodies is from the for-mation of ossifying cartilages(osteophytes) in the capsuleof the- joint immediately un-der the synovial membrane, which may enter the joint and finally tear loose and become free. Itis probable that,when once detached and lying free in the joint, thesebodies do not grow any more ; although it is not impossible that theymight derive their nutriment from the synovia. The development ofloose
. General surgical pathology and therapeutics, in fifty-one lectures .. . , but finallyit breaks off and then liesloose in the joint. But by farthe most frequent form of thesearticular bodies is from the for-mation of ossifying cartilages(osteophytes) in the capsuleof the- joint immediately un-der the synovial membrane, which may enter the joint and finally tear loose and become free. Itis probable that,when once detached and lying free in the joint, thesebodies do not grow any more ; although it is not impossible that theymight derive their nutriment from the synovia. The development ofloose bodies is always accompanied by some dropsy of the joint; per-haps the latter is occasionally the primary disease. Loose bodiesoccur almost exclusively in the knee-joint, and only in adult patients;they are very rare, perhaps the rarest of articular diseases. There isan undoubted connection between the formation of articular carti-lages, arthritis deformans, and hydrarthrus. These diseases are of thesame class, and from a possibly congenital or developed general diath-. Multiple articular bodies, after GruveUliicr. 544 CHRONIC INFLAMMATION OF THE JOINTS. esis they form a contrast to the fungous and fungous-s appurativearticular inflammations. The symptoms which may be considered as characteristic of theexistence of free bodies in the joint are as follows : The patient haslong had moderate dropsy of the knee-joint, and, while walking, sud-denly has a severe pain, which prevents his walking for the time be-ing ; the knee stands between flexion and extension, and cannot bemoved till it has been rubbed in a certain way. This symptom is dueto the loose body being caught between the bones forming the joint,between the semilunar cartilages, or in one of the synovial sacs. But,even before this, these patients usually complain for weeks or monthsof weakness or slight pain in the knee, and, as already stated, exami-nation will generally show a slight amount of dropsy there. Fromthe pecul
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