The international encyclopaedia of surgery; a systematic treatise on the theory and practice of surgery . aced so as torest across a doorway or window, the foot of the patients bed, or some firmsupport, and the opposite end of the cord is attached to the limb, and exten-sion to any amount is obtained simply by sweeping the crossbar around theother, winding up the cord upon it as a capstan winds up a cable. The Spanish capstan is by far the best of all extemporaneous methods ofmultiplying the extending power. It gives any required amount of tractileforce, it is easily prepared, and, instead of
The international encyclopaedia of surgery; a systematic treatise on the theory and practice of surgery . aced so as torest across a doorway or window, the foot of the patients bed, or some firmsupport, and the opposite end of the cord is attached to the limb, and exten-sion to any amount is obtained simply by sweeping the crossbar around theother, winding up the cord upon it as a capstan winds up a cable. The Spanish capstan is by far the best of all extemporaneous methods ofmultiplying the extending power. It gives any required amount of tractileforce, it is easily prepared, and, instead of being limited to the few inches ofshortening obtainable by twisting the cords of the Spanish windlass, it willhaul in forty feet of line, if desired, as readily as one. In this method, also,the assistant whose hand turns the cross-stick readily estimates the amount offorce, and avoids the unwitting application of a dangerous amount of tension. Jarviss Adjuster.—A very valuable instrument for all purposes of makingextension was known to surgeons of the past generation as Jar viss adjuster. Fig. Jarviss adjuster. Although not at the present day manufactured and sold, on account of thegeneral neglect into which it has fallen with the profession, this is still, for acertain percentage of cases, the most efficient means of treatment we have atcommand, and one unaccountably neglected by modern surgeons. For the 648 INJURIES OF THE JOINTS. reduction of all dislocations requiring more force than the unaided hand canbring to bear, the adjuster is equally efficient, taking the place of pulleys, it is particularly helpful in cases where it is desirable to make use ofpowerful extension combined with manipulation. Fixed extension, by ropesand counter-bands, holds the patient firmly in a single position, and the direc-tion of the extending force can be but little altered. The Jarvis adjuster, onthe other hand, is attached entirely to the patients body, and when it has beenset
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1881
