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. Now insert the Parks retractor.
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Exploring and inspecting the fistula
![Exploring and inspecting the fistula]()
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Excising the external opening of the fistula
![Excising the external opening of the fistula]()
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Remark: Since this is a text-to-speech computer voice, it may mispronounce some medical terminology.In order to ensure a wide external wound for drainage, generously excise the external opening of the fistula and then core out the fistula tract like a funnel along the seton.
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Dividing the anal sphincter
![Dividing the anal sphincter]()
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Remark: Since this is a text-to-speech computer voice, it may mispronounce some medical terminology.Divide the anal sphincter completely along the fistula-bearing part.
Tip: Use the previously inserted probe as a guide.
Excising the bed of the fistula
Completely excise the bed of the fistula with electrocautery. ... - Operations in general, visceral
Completely excise the bed of the fistula with electrocautery. ... - Operations in general, visceral
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