Erratum to: Knee Surg Sports Traumatol Arthrosc DOI 10.1007/s00167-017-4425-x

The article “Medial patellofemoral ligament (MPFL) reconstruction in combination with a modified grammont technique leads to favorable mid-term results in adolescents with recurrent patellofemoral dislocations”, written by Helmut Wegmann, Christoph Würnschimmel, Tanja Kraus, Georg Singer, Robert Eberl, Holger Till, Matthias Sperl, was originally published electronically on the publisher’s internet portal (currently SpringerLink) on 16th February, 2017 without Open Access. The original article was corrected.

With the author(s)’ decision to opt for Open Choice the copyright of the article changed on 22nd April, 2017 to © The Author(s) 2017 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.