*5.1.6 Spasm-controlled sphincterotomy*

Previous findings have created a whole new perspective in the technique of sphincterotomy, suggesting that the sphincter division should be made in a tailored fashion by considering the differences in genders, anal calibers, and anal resting pressures.

A tailored, spasm-controlled sphincterotomy term by performing sphincterotomy according to the anal caliber was first proposed by Cho et al. [64]. A prospective comparative study has investigated the outcomes of spasm-controlled and up to the fissure

#### **Figure 7.**

*Anal calibrators are used to measure the anal caliber in the spasm-controlled technique. Small, medium and large calibrators are in the size of 5–15, 15–30, and 27–43 mm, respectively [65].*

*Sphincterotomy is the Gold-Standard Treatment of Chronic Anal Fissure: But How Should it be… DOI: http://dx.doi.org/10.5772/intechopen.104109*
