First inspect the non-infected healed fistula with its previously inserted seton. Probe the fistula through its external opening and perform a digital rectal examination.
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Exploring and inspecting the fistula
![Exploring and inspecting the fistula]()
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Excising the external fistula opening
![Excising the external fistula opening]()
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Remark: Since this is a text-to-speech computer voice, it may mispronounce some medical terminology.Now start with the funnel-shaped excision of the fistula along its track.
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Excising the internal fistula opening
![Excising the internal fistula opening]()
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Remark: Since this is a text-to-speech computer voice, it may mispronounce some medical terminology.Insert the anal retractor and dissect the internal opening of the fistula. Follow the fistula track and sparingly excise the internal fistula opening.
Dissecting the advancement flap
With the electric diathermy carefully dissect the mucosal flap required to cover the defect. ... -
With the electric diathermy carefully dissect the mucosal flap required to cover the defect. ... -
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