. General surgical pathology and therapeutics, in fifty-one lectures .. . THE JOINTS. ly. At this time the synovia is rarely increased, but is cloudy, or evenresembles muco-pus. These changes in the synovial membrane gradu-ally increase; it becomes thicker, more cedematous, softer, redder; thetufts grow to thick pads, and in places resemble spongy surface of the cartilage loses its blue lustre, though it is not yetvisibly diseased; but the synovial outgrowths begin to grow over thecartilages from the sides, and to push in between the two adjacentsurfaces of cartilage; meantime
. General surgical pathology and therapeutics, in fifty-one lectures .. . THE JOINTS. ly. At this time the synovia is rarely increased, but is cloudy, or evenresembles muco-pus. These changes in the synovial membrane gradu-ally increase; it becomes thicker, more cedematous, softer, redder; thetufts grow to thick pads, and in places resemble spongy surface of the cartilage loses its blue lustre, though it is not yetvisibly diseased; but the synovial outgrowths begin to grow over thecartilages from the sides, and to push in between the two adjacentsurfaces of cartilage; meantime the capsule of the joint is also thick-ened, and has acquired an evenly, fatty appearance, and is very cedema-tous ; this swelling and oedema gradually extend to the subcutaneoustissue, and to the skin. From this point, the changes in the cartilageclaim most of our attention. The synovial proliferations, in the shapeof red granular masses, advance gradually over the entire surface ofthe cartilage, and cover it completely, lying over it like a veil (Fig. 93); Fig. Diagram of a section of a knee-joint (the interarticular cartilages have been left out, the ar-ticular cartilages shaded) with fungous inflammation: a a, fibrous capsule; b, crucial liga-ment ; c, femur; d, tibia; e e, fungous synovial membrane growing into the cartilage, at/ iteven grows into the bone; at g are isolated prolifications of the granulations into thebone on the border between bone and cartilage. if we attempt to remove this veil, we find that in some places it isattached quite firmly by processes entering the cartilage, just as theroots of an ivy-vine cling to and insert themselves into the wallagainst which it grows (as is also the case in pannus of the cornea) ;these roots not only elongate, they spread out, and gradually eat upthe cartilage, which, when the covering of fungous prolifications is re-moved, appear first rough here and there, then perforated, and finallydisappear altogether; then the
Size: 1677px × 1490px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjecttherapeutics, bookyea
