Editors’ Note to: Comparison of adductor canal block and IPACK block (interspace between the popliteal artery and the capsule of the posterior knee) with adductor canal block alone after total knee arthroplasty: a prospective control trial on pain and knee function in immediate postoperative period

Editors’ Note to: Eur J Orthop Surg Traumatol 28:1391–1395 https://doi.org/10.1007/s00590-018-2218-7

The Editor-in-Chief of the European Journal of Orthopaedic Surgery and Traumatology are issuing an Editor’s Note for this article [1]. It was brought to our attention that the results overlap with a previously published article by Reddy et al. [2]. Despite reporting the same results, differences have been noted in the study design, data collection periods and methodologies described. The findings from the institutional investigation show that the current article [1] accurately reports the study. Since the investigation, the article published in International Journal of Orthopaedics Sciences has been removed from the journal site; however, since this article is still accessible elsewhere, the Editor-in-Chief is publishing this Editor’s Note to alert the readership and provide clarification.