Complications following metal bar removal after Nuss repair are rare in a duocentric retrospective evaluation.

"Declarations Conflict of interestWe have nothing to declare. Ethical approvalRetrospective studies with anonymization at the source–extracting only non-identifiable routinely collected information from the electronic patient records that may never be traced back to the individual patient–are exempt from ethical approval in the jurisdiction of the authors. Consent to participateUse of data for scientific reasons that were anonymised at the source and collected during routine clinical treatment is allowed by law, which also supersedes consent in cases of anonymised use. Consent for publicationNot applicable. Conflict of interest We have nothing to declare."

"Funding Open Access funding enabled and organized by Projekt DEAL. We received no financial support for the research, authorship or publication of this article."