Correction to: Can J Anesth/J Can Anesth (2012) 59:681–703 https://doi.org/10.1007/s12630-012-9717-5

The following row on page 691 of Table 3, as highlighted in bold under Incidence of Retention (%) should read “0” instead of “N/A”.

Table 3 Intrathecal anesthesia studies