A system of surgery : theoretical and practical . t parts at the age when lateral curvature commences, are contained in the Museumof the Middlesex Hospital. 428 DISEASES OF THE SPINE. stiuctures will take place ; hence the force acting on this, the concave side, will beone of compression. Again, it is obvions that the effect of the inclination on thearticulations of the convex side will be that of separating the surfaces, and producinga divergence of the connecting structures : accordingly, the force here will be one ofstretching and elongation. Now it is important for our svxbject to observe
A system of surgery : theoretical and practical . t parts at the age when lateral curvature commences, are contained in the Museumof the Middlesex Hospital. 428 DISEASES OF THE SPINE. stiuctures will take place ; hence the force acting on this, the concave side, will beone of compression. Again, it is obvions that the effect of the inclination on thearticulations of the convex side will be that of separating the surfaces, and producinga divergence of the connecting structures : accordingly, the force here will be one ofstretching and elongation. Now it is important for our svxbject to observe thechanges which will be produced in the articulations by the operation of these distinctforces. By the compression acting on the concave side, there will be, as the firstchange, a tendency of the surfaces to glide past each other beyond normal bounds, in a Fig. 98.—Unpublished diagram of Mr. A. Shaw,intended to illustrate the effect of restingmainly on the right leg—the normally strongerleer. Fig. 94.—Back view of average G, tensor vaginae femoris ; h, the same muscle in a state ofrelaxation ; a, the lelt ilium lowered ; b, the right iliumraised ; c n, line of corresponding tendency of spinal column ;F E, line towards which the trunk is instinctively inclined inorder to obviate the tendency of c towards the ground. Thedark curved line which springs from the junction of thelines CAB represents below the ordinary lumbar curve to theleft, and above the direction of the dorsal region to the right,in order to recover the centre of gravity.
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Keywords: ., bookcentury1800, booksub, booksubjectsurgicalproceduresoperative
