Correction to: BMC Geriatr 21, 669 (2021)

https://doi.org/10.1186/s12877-021-02646-4

After publication of this article [1], the authors reported reference [24] was missing and should have been: [24] Bouaziz H, Vial F, Jochum D, Macalou D, Heck M, Meuret P, et al. An evaluation of the cutaneous distribution after obturator nerve block. Anesth Analg. 2002;94(2):445-9.

The original article [1] has been updated.