Correction to: Healthy knees have a highly variable patellofemoral alignment: a systematic review

Knee Surg Sports Traumatol Arthrosc. 2020 Feb;28(2):407. doi: 10.1007/s00167-019-05677-y.

Bettina Hochreiter¹, Silvan Hess^{2

3}, Lukas Moser^{2

4}, Michael T Hirschmann^{2

4}, Felix Amsler⁵, Henrik Behrend⁶

¹ Department of Orthopaedic Surgery and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland.
² Department of Orthopaedic Surgery and Traumatology, Kantonsspital Baselland (Bruderholz, Liestal, Laufen), 4101, Bruderholz, Switzerland.
³ University of Bern, Bern, Switzerland.
⁴ University of Basel, Basel, Switzerland.
⁵ Amsler Consulting, Basel, Switzerland.
⁶ Department of Orthopaedic Surgery and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland. henrik.behrend@kssg.ch.

Abstract

Authors would like to add the below acknowledgement statement to the original article.