Table 2.

Success Rates of Trans-sacral (S2–S3) Caudal Block in Children

References	Publication yr.	No.	Success (%)	Dura puncture
Busoni and Sarti [47]	1987	74	100	No
Saint-Maurice et al. [51]	1993	46	91	2
Quinot and Coquelin [52]	1993	11	100	No
Kumagai and Yamashita [53]	1995	200	96	No
Osaka and Yamashita [54]	2003	551	100	No
Shin et al.(ultrasound) [49]	2009	78	100	No