Canal

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Related to Alcock's canal: pudendal canal

CANAL. A trench dug for leading water in a particular direction, and confining it.
     2. Public canals are generally protected by the law which authorizes their being made. Various points have arisen under numerous laws authorizing the construction of canals, which have been decided in cases reported in 1 Yeates, 430; 1 Binn. 70; 1 Pennsyl. 462; 2 Pennsyl. 517; 7 Mass. 169; 1 Sumu. 46; 20 Johns. 103, 735; 2 Johns. 283; 7 John. Ch. 315; 1 Wend. 474; 5 Wend. 166; 8 Wend. 469; 4 Wend. 667; 6 Cowen, 698; 7 Cowen, 526 4 Hamm. 253; 5 Hamm. 141, 391; 6 Hamm. 126; 1 N. H. Rep. 339; See River.

References in periodicals archive ?
The inferior rectal nerve is then traced to the entrance of Alcock's canal.[sup.6] In a large series of 212 patients, Bautrant and colleagues described a transischiorectal approach to the pudendal nerve,[sup.5] mostly for pudendal decompression (104 cases).
While an initial CT-guided injection of anesthetic and steroid serves both diagnostic and therapeutic roles, a second and third injection can be performed to deliver more steroid and anesthetic into the pudendal nerve canal (Alcock's canal) in a patient who responded to the first injection but whose pain has returned.
The nerve is then decompressed along its entire length, from the piriformis muscle and as close as possible to the spinal cord, to the distal Alcock's canal. Neurolysis is performed along each of the nerve's branches - the inferior rectal nerve, the perineal nerve, and the dorsal clitoral nerve - until the nerve is completely free.