was published by three of the original six authors in Acta Orthopaedica Belgica in March 2013. The paper in Acta Orthopaedica Belgica reports on a subset of 55 patients from the reported 322 responses in the paper in this Journal. The analysis appears identical. Unfortunately neither paper refers to or cites the other. Neither of the Editors of the two journals was aware of the other paper prior to submission and acceptance. Researchers reviewing data on thumb base surgery need to be aware that some of the data has been reported twice.