Conclusion
Constipation is a complex disorder, the understanding of which remains superficial. Partial resection of the puborectalis muscle only releases the abnormal mechanism of defecation. This procedure, therefore, should be restricted to those patients who have definite evidence of outlet obstruction caused by hypertrophy of the puborectalis muscle and who fail to respond to conservative therapy. It is also imperative to correct inappropriate bowel habits and diet prior to surgery.
Both PPC and PH are poorly understood conditions which require further investigation. Puborectalis hypertrophy is a condition that causes outlet obstruction constipation. Although it has some similarity with PPC, it is an organic disorder caused by hypertrophy of the puborectalis muscle due to inflammation, congenital structure, trauma, or other etiologies. While PPC is a functional disorder and the structure of the puborectalis is normal, it does respond to biofeedback and botulinum toxin type-A injection, unlike PH. Only those patients who have definite evidence of outlet obstruction caused by hypertrophy of the puborectalis muscle, and who fail to respond to conservative therapy, should undergo division of the puborectalis muscle.
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Yu, Dh., Jin, Hy. (2006). Surgical Treatment of Puborectalis Hypertrophy. In: Wexner, S.D., Duthie, G.S. (eds) Constipation. Springer, London. https://doi.org/10.1007/978-1-84628-275-1_26
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DOI: https://doi.org/10.1007/978-1-84628-275-1_26
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