Correction to: BMC Musculoskelet Disord 21, 687 (2020)

https://doi.org/10.1186/s12891-020-03688-2

Following publication of the original article [1], the authors noticed that the author Umile Giuseppe Longo’s name was incorrectly modified to “UG Longo” in the final proof. The original article [1] has been updated.