The principles and practice of modern surgery / by Roswell Park ... with 722 engravings and 60 full-page plates in colors and monochrome.

  • Roswell Park
Date:
1907
Catalogue details

Licence: Public Domain Mark

Credit: The principles and practice of modern surgery / by Roswell Park ... with 722 engravings and 60 full-page plates in colors and monochrome. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    5. Tlir sanic is ivur of thai variety spoken ol above as lyiolixjiral or dcvelojnnfntai, since |)Iia»ioeytes are the active a};'ents in |)r(Mhuiii<;- the (hsa|)])earanee of the tadpole's tail. 0. A more slow I'onn of patholoffieal atrophy is seen in the (jradiinl ilisapprarfnicc of tissues in the neiifhhorhood of advancing tnniors, enlar<^in<; <ysls, etc. 'J'his is |)er- haps hut another e.\|)ression oi atrophy from eoiitimions pressure. But a still better illustration is the atr()j)hy which comes from immobilization of a ])art without pressure. This is usually the case when splints or orthopedic ajiparatus liave to be kept in place for some time. 7. Sprrific forius of pathol()<fi<ai atrophy are lar<2;ely connected with di.sturbances in the central nervous system. 'I'hey are often referred to as fropliouciirollc Their exact mechanism is not yet understood, and cases may l)e confused under this head whose remote causes are widely different. Here should be included, for instance, the atrophy of a deeji bone which occurs after extensive burn of the surface; also that peculiar form of atrophy of tissues in the stump which produces the so-called conical siinii}). These ca.ses arc of a more complicated character, for if pressure is removed from the bone end, especially in younj]i; peojile, the bone tends to grow fa.ster than it should, while the soft parts disappear, partly as the result of mere disu.se or lo.ss of function. In this way conicity is produced, which sometimes calls for subsequent re-amputation. Under this head miifht also be included the so-called trophic infiannuation (misnomer) of some writers, such, for example, as ulceration of the cornea after division of the trigeminus. The general subject of atrophic ehmgaium also belongs here, referring to the fact that as a result of disuse, or .sometimes of active disease, the bones, while showing atro|)hic changes in other respects, actually increase in length. Should such increase occur in one bone of those portions of the limbs which are supplied with two, the result would be posture deformity and displacement of the terminal portion.