Erratum to: Clin Orthop Relat Res DOI 10.1007/s11999-014-3530-0

The last name of the last author was misspelled as Thanos Athansiou MD, PhD, FRCS, FETCS on the original publication. The correct spelling of his name is Thanos Athanasiou MD, PhD, FRCS, FETCS.

The authors apologize for this error.