PURPOSE: PURPOSE:The effects of the Parks' anal retractor on anal sphincter function were studied in a prospective, randomized trial. A closed hemorrhoidectomy was performed intraanally in 20 patients using the Parks' anal retractor; in 20 other patients, the procedure was done perineally without the use of a retractor.
METHODS: METHODS:Anal manometry was performed before and at 6 and 12 weeks after hemorrhoidectomy.
RESULTS: RESULTS:Mean squeeze pressure decreased by 4 percent whether or not a retractor was used. Mean resting pressure decreased by 23 percent after use of Parks' anal retractor (P=0.01) compared with 8 percent when it was not used (P>0,05).
CONCLUSIONS: CONCLUSIONS:The internal anal sphincter is easily damaged with the use of the Parks' anal retractor. When possible, its use should be avoided to obtain better manometric and functional results.
No reprints are available.
© The ASCRS 1997