anal stenosis is a common complication after massive open hemorrhoidectomy. it interferes with the patient daily activities. Many interventions were described, but there is no standard treatment. Data were always lost about the best intervention. In this study we try to discover if V-Y advancement flap can effectively treat anal stenosis or not.
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operative time
Timeframe: Intraoperative (operative time is measured in minutes from incision to wound dressing)
pain score
Timeframe: from one day to 6 months postoperative
bleeding amount
Timeframe: from incision to 2 weeks after surgery
post-operative analgesia
Timeframe: from one day to 2 weeks post operative
hospital stay
Timeframe: for 1 to 2 days after surgery
healing time
Timeframe: healing duration in days calculated from the first day post operative to 3 months