Updates are available Correction dated 2022-08-27

Article History

Received: 29 January 2017

Revised: 5 May 2017

Accepted: 6 June 2017

First Online: 12 June 2017

Change Date: 27 August 2022

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1007/s00586-022-07358-w

Compliance with ethical standards

:

: None of the authors has any conflict of interest in connection with the study.

: According to the local institutional review board, for this type of retrospective study, ethics approval is not required.

: The study did not receive any external funding.

: According to the local institutional review board, for this type of retrospective study, informed consent is not required.