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Read before the American Surgical Association, Washington, D. C., May 2nd, 1884.
It is now nine years since I published, in the Medical Record of New York, my application of the multiple wedge principle to the treatment of organic strictures of the urethra.
To quote from that paper: "It ought to be a self-evident proposition, that it is easier to introduce singly the component parts of a wedge, than to introduce it as a whole. Take, for example, a No. 12 conical bougie, even capillary at its point, and attempt tempt to introduce it into a stricture: Where is the point of friction and resistance? Is it not around the entire circumference of the stricture? Diminish the size of the instrument, and in a direct ratio, you diminish the amount of resistance. After having passed into a stricture one of these whalebone guides, the second has to overcome the friction
COLEMAN JS. THE MULTIPLE WEDGE PRINCIPLE IN THE TREATMENT OF ORGANIC STRICTURES OF THE URETHRA. JAMA. 1884;III(4):91–94. doi:10.1001/jama.1884.02390530007001a
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