Erratum to: Eur Spine J (2010) 19:2110–2116 DOI 10.1007/s00586-010-1473-z
In the original article "Acknowledgments" was missing. The Acknowledgment is given below:
Acknowledgments
This work was made possible by funding from the NIH (1R01AR051146), AO Research Fund (project F-09-10I) of the AO Foundation, and NASA/VSGC (NNX07AK92A).
Footnotes
The online version of the original article can be found under doi:10.1007/s00586-010-1473-z.
