First, inspection of the fistula, which has healed without irritation and is equipped with a thread drainage. Probing of the fistula through the external fistula opening, as well as the digital rectal examination.
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Probing and Inspection of the Fistula
![Probing and Inspection of the Fistula]()
Soundsettings -
Excision of the External Fistula Ostium
![Excision of the External Fistula Ostium]()
Soundsettings Now begins the funnel-shaped excision of the fistula along the fistula tract.
Excision of the Internal Fistula Opening
The anal retractor is inserted and the internal fistula opening is prepared. Along the fistula, the
The anal retractor is inserted and the internal fistula opening is prepared. Along the fistula, the
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