Erratum to: Arch Orthop Trauma Surg (2011) 131:1677–1685 DOI 10.1007/s00402-011-1353-y

As the given name and family name of the authors are represented incorrectly, the correct information regarding the author group is provided below:

Alberto Migliore · Umberto Massafra · Emanuele Bizzi · Bruno Laganà · Valentina Germano · Prisco Piscitelli · Mauro Granata · Sandro Tormenta