An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Hackenberg L, Hierholzer E, Bullmann V, Liljenqvist U, Götze C.Hackenberg L, et al.Eur Spine J. 2006 Jul;15(7):1144-9. doi: 10.1007/s00586-005-0057-9. Epub 2006 Jan 21.Eur Spine J. 2006.PMID: 16429283Free PMC article.
Hackenberg L, Liljenqvist U, Hierholzer E, Halm H.Hackenberg L, et al.Z Orthop Ihre Grenzgeb. 2000 Jul-Aug;138(4):353-9. doi: 10.1055/s-2000-10162.Z Orthop Ihre Grenzgeb. 2000.PMID: 11033906German.
Hackenberg L, Schäfer U, Micke O, Liljenqvist U.Hackenberg L, et al.Z Orthop Ihre Grenzgeb. 2001 Jul-Aug;139(4):294-7. doi: 10.1055/s-2001-16913.Z Orthop Ihre Grenzgeb. 2001.PMID: 11558045Clinical Trial.German.
Lepsien U, Bullmann V, Hackenberg L, Liljenqvist U.Lepsien U, et al. Among authors: hackenberg l.Z Orthop Ihre Grenzgeb. 2002 Jan-Feb;140(1):77-82. doi: 10.1055/s-2002-22095.Z Orthop Ihre Grenzgeb. 2002.PMID: 11898069German.