Surgery; its theory and practice . outward disloca-tion is the most common; theupward variety can only occurwhen the ligamentum patellae hasbeen ruptured or divided. Theoutward and inward varieties maybe complete or incomplete. Inthe dislocation edgeways, which is very rare, the patella rests vertically on one edge between thecond3les, either the outer or the inner edge looking forwards, butmost commonly the former. Cause.—Muscular action, or a blowon the outer or inner edge of the bone. Knock-knee predisposesto the outward dislocation. The signs are obvious, the positionof the patient indicat
Surgery; its theory and practice . outward disloca-tion is the most common; theupward variety can only occurwhen the ligamentum patellae hasbeen ruptured or divided. Theoutward and inward varieties maybe complete or incomplete. Inthe dislocation edgeways, which is very rare, the patella rests vertically on one edge between thecond3les, either the outer or the inner edge looking forwards, butmost commonly the former. Cause.—Muscular action, or a blowon the outer or inner edge of the bone. Knock-knee predisposesto the outward dislocation. The signs are obvious, the positionof the patient indicating the nature of the accident. Treatmetit.—Vvith the patient anesthetized, the thigh should be flexed onthe abdomen, to relax the quadriceps extensor muscle ; and theleg, for the same , extended on the thigh. In the out-ward and inward dislocation, pressure should now be made on theedge of the patella that is further from the centre of the joint, so asto raise the opposite edge and tilt it over the condyle, when it is. Reduction of thyroid dislocation by pul-leys. (Coopers Dislocations.) 440 INJURIES OF REGIONS. at once drawn into place by the action of its muscles. In theedgeways variety, pressure should be made with the thumbs inopposite directions on the upper and lower margin of the dis-located bone, this manipulation being aided by suddenly andforcibly flexing the knee, and then, if necessary, by extending , though generally easy, is sometimes attended withgreat difificulty, and has occasionally been found impossible, even Fig
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectsurgery, bookyear1896
