They ascertained a recurrence rate of 5. A fistula medial to the levator plate or puborectalis muscle is supralevator, and a fistula lateral to these muscles is infralevator. High class babe fucked hardcore Length: This method delineates the trans-sphincteric tract, with careful dissection in the intersphincteric groove, with or without the help of a fistulotomy probe. Extrasphincteric fistulas are recognized by the absence of any MR signal, suggesting sepsis within the intersphincteric space because, by definition, there is no communication with the anal canal. Here the anal glands extend to the intersphincteric plane.
Some radiologists, therefore, do not use contrast enhancement; whenever only surgery is planned, T2-weighted imaging is adequate.
At T2-weighted images, fistulas have a central high-signal-intensity tract that is surrounded by a relatively low-signal-intensity wall. In recurrent fistula, previous internal sphincterotomy will impede proper dissection of the tract. Thus, a total of 15—30 min could be allocated for pelvic imaging. MRI has been shown to reduce recurrent disease and, therefore, reoperation. Successful sphincter-sparing surgery for all anal fistulas.