. On modern methods of treating fractures . the outstandingarm of which provides 12 lb. ofextension. The amount of exten-sion can be graduated by meansof a screw working on a ballwasher which allows the extensionto act always in line with theaxis of the arm. The extension force is appliedto the arm by the usual adhesiveplaster, provided with a woodenspreader to prevent lateral pres-sure upon the condyles. In this, as in all the spring extensionapparatus which I use, the limb can be tied to the spring by asimple cord, or more accurately adjusted by the screw and most cases it is not nece
. On modern methods of treating fractures . the outstandingarm of which provides 12 lb. ofextension. The amount of exten-sion can be graduated by meansof a screw working on a ballwasher which allows the extensionto act always in line with theaxis of the arm. The extension force is appliedto the arm by the usual adhesiveplaster, provided with a woodenspreader to prevent lateral pres-sure upon the condyles. In this, as in all the spring extensionapparatus which I use, the limb can be tied to the spring by asimple cord, or more accurately adjusted by the screw and most cases it is not necessary to use more than about 5 to8 lb. extension for arm fractures. In the case of a humerus withmuch displacement which has been neglected, it is better toreduce this in bed by weight in a position of abduction, or imderan anaesthetic, and only ajjply the ambulatory splint after thegross displacement has been corrected. This type of humerus extension splint is quite comfortablelo wear. The elbow and wrist-joints are free, and the shoulder. Fig. 27. •— The Y - shaped crutchsphnt for extension of fractures of thehumerus. The screw adjustment de-picted may be dispensed with, andthe spring tightened by puHing ona,nd knotting the cord attached tothe wooden stirrup. EXTENSION BY ADHESIVE APPLIANCES 63 also is left exposed. All these joints can therefore be massagedand exercised from the outset, and usually at the end of afortnight the splint can be left off. Extension Splints for the Forearm Bones—The simplespUnt of Borchgrevinks is quite efficient for certain kinds offracture. It consists of an L-shaped posterior splint, with apulley-wheel at the end and a rubber extension at the back.
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidonmodernmethodso00grov
