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After an accurate lubrication of the anal margin the Circular Anal Dilator (CAD33), with the obturator in place, is introduced with the aid of short rotary movements (clockwise and anti-clockwise).The introduction of the CAD33 causes the reduction of the prolapse, the anoderm and parts of the rectal mucosa. Sometimes introducing a surgical sponge into the anus before the CAD can improve the reduction of the excess anoderm. After removing the obturator, the prolapsed mucosa fallsinto the lumen of the CAD33. As it is transparent, the CAD33 allows visualisation of the dentate line, allowing the s
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