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See also:WOUND (O. Eng. wund,connected with a See also:Teutonic verb, meaning to strive, fight, suffer, seen in O. Eng. winnan, whence Eng. " win ") , a See also:solution in the continuity of the soft parts of the See also:body . Contused wounds, or bruises, are injuries to the cellular tissues in which the skin is not broken . In parts where the tissues are lax the signs of swelling and discoloration are more noticeable than in the tenser tissues . The discoloration is caused by See also:haemorrhage into the tissues (ecchymosis), and passes from dark See also:purple through See also:green to yellow before it disappears . If a considerable amount of See also:blood is poured forth into the injured tissues it is termed a haematoma . The treatment of a bruise consists in the application of See also:cold lotion, preferably an evaporating spirit-lotion, to limit the subcutaneous bleeding . The haemorrhage usually becomes absorbed of its own See also:accord even in haematomata, but should suppuration threaten an incision must be made and the cavity aseptically evacuated . Open wounds are divided into incised, lacerated, punctured and gunshot wounds . Incised wounds are made by any See also:sharp See also:instrument and have their edges evenly cut . In these wounds there is usually See also:free haemorrhage, as the vessels are cleanly divided . Lacerated wounds are those in which the edges of the See also:wound are torn irregularly . Such injuries occur frequently from accidents with machinery or See also:blunt See also:instruments, or from bites by animals . The haemorrhage is less than from incised wounds, and the edges may be bruised . Punctured wounds are those in which the See also:depth is greater than the See also:external opening . They are generally produced by sharp-pointed instruments . The See also:chief danger arises from puncture of large blood-vessels, or injury to important structures such as occur in the See also:thorax and See also:abdomen . It is also difficult to keep such wounds surgically clean and to obtain apposition of their deeper parts, and septic germs are often carried in with the instrument . The treatment of incised wounds is to See also:arrest the bleeding (see HAEMORRHAGE), cleanse the wound and its surroundings, removing all See also:foreign bodies (splinters, See also:glass, &c.), and obtain apposition of the cut surfaces . This is usually done by means of sutures or stitches of See also:silk, See also:catgut, silkwormgut or See also:silver See also:wire . If the wound can be rendered aseptic, incised wounds usually heal by first intention . In lacerated wounds there is danger of suppuration, sloughing, See also:erysipelas or See also:tetanus . These wounds do not heal by first intention, and there is consequently considerable scarring . The exact amount of See also:time occupied in the repair depends upon the presence or not of septic material, as lacerated wounds are very difficult to cleanse properly . Carbolic See also:acid lotion should be used for cleansing, while torn or ragged portions should be cut away and See also:provision made for free drainage .
It is not always possible to apply sutures at first, but the wound may be packed with See also:iodoform See also:gauze, and later, when a clean granulating See also:surface has been obtained, skin-grafting may be required
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In extensive lacerated wounds, where the flesh has been stripped from the bones, where there is spreading See also:gangrene, or in such wounds in See also:conjunction with comminuted fractures or with severe See also:sepsis supervening, amputation of a See also:limb may be called for
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Punctured wounds should be syringed with carbolic lotion, and all splinters and foreign bodies removed
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The location of needles is rendered comparatively easy by the use of the See also:Rontgen rays; the wound can then be packed with gauze and drained
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If a large See also:vessel should have been injured, the wound may have to be laid open and the bleeding vessel secured
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Should See also:paralysis indicate that a large See also:nerve has been divided, the wound must also be laid open in See also:order to suture the injured structure
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It is only possible here to mention some of the See also:special characteristics of gunshot wounds
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In the See also:modern small-See also:bore See also:rifle -(See also:
Abdominal wounds may be so small that the See also:intestine may be penetrated and adhesions of neighbouring coils of intestine See also:cover the aperture
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See also:Martini-See also: |
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