. A treatise on dislocations and fractures of the joints. INTO THE ISCHIATIC NOTCH. 61 Cause.—This species of dislocation is produced by the applicationof force, when the body is bent forward upon the thigh, or when thethigh is bent at right angles with the abdomen; in which positions, ifthe knee be pressed inward, the head of the bone is thrown behind theacetabulum. The reduction of the dislocation into the ischiatic notch is, in gen-eral, extremely difficult, but is to be effected in the same manner asdirected for the reduction of a dislocation on the dorsum ilii, except-ing that the directi
. A treatise on dislocations and fractures of the joints. INTO THE ISCHIATIC NOTCH. 61 Cause.—This species of dislocation is produced by the applicationof force, when the body is bent forward upon the thigh, or when thethigh is bent at right angles with the abdomen; in which positions, ifthe knee be pressed inward, the head of the bone is thrown behind theacetabulum. The reduction of the dislocation into the ischiatic notch is, in gen-eral, extremely difficult, but is to be effected in the same manner asdirected for the reduction of a dislocation on the dorsum ilii, except-ing that the direction of the extending force is to cross the middle ofthe sound thigh instead of one third above the knee, and moreover,the patient is placed on his side, instead of on his back ; but themode of fixing the pelvis and the apparatus for extension, is precisely. the same in both dislocations. Whilst the extension is in progress,the head of the femur should be lifted out of the notch, and over theedge of the acetabulum by means of a round towel placed under theupper part of the thigh, and over the shoulders of an assistant, whoat the same time, resting both his hands on the patients pelvis, ob-tains a great power over the dislocated head of the femur. Although the preceding is the method in which this dislocation ismost easily reduced, yet I have seen a different mode practised; andI shall mention it here, as it shows how capable the muscles are them-selves of drawing the head of the bone to its socket, when it is liftedfrom the cavity into which it has fallen, if the accident has not oc-curred so long as to render them permanently contracted. Case XLVIII.—A man, aged twenty-five, was admitted into GuysHospital under the care of Mr. Lucas: upon examination, the thighwas found dislocated backwards; the limb scarcely differed in lengthfrom the
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectfractur, bookyear1844
