Correction to: BMC Musculoskelet Disord 22, 455 (2021)

https://doi.org/10.1186/s12891-021-04332-3

Following the publication of the original article [1] the authors noticed that the Online Tables 1 and 2 (supplementary) were missing in the proof. The citations were linked to the normal tables.

The original article [1] has been updated.