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Additional Information

Competing Interests

The authors declare the following patents:

1) Nikolopoulos Fotios, Kefalas Vassilios. (2013): Patent title:“Orthopedic Screw” No 1008012 OBI.GR, Application: 17/11/2011, Awarded: 22/10/2013, INT CL A61F 2/08.

2) Nikolopoulos Fotios., Kefalas Vassilios. (2013): Patent title:“Orthopedic Screw” No 20130100428 OBI.GR, Application: 19/07/2013.

3) Nikolopoulos Fotios., Kefalas Vassilios. (2013): Patent title: “Orthopedic Screw with tool of insertion” No 20140100199 OBI.GR, Application: 18/03/2014.

Author Contributions

Fotios Nikolopoulos conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, preparation of the human specimens, dissection and bone preparetion.

Apostolos Poulilios contributed reagents/materials/analysis tools, reviewed drafts of the paper.

George Vidalis contributed reagents/materials/analysis tools, prepared figures and/or tables, reviewed drafts of the paper, preparation of the human specimens.

Vassilios Kefalas conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Cadaveric samples were used according to the PhD thesis protocol approval No10308 (Medical School, University of Athens, 24/06/2004).

Patent Disclosures

The following patent dependencies were disclosed by the authors:

1) Nikolopoulos Fotios, Kefalas Vassilios. (2013): Patent title:“Orthopedic Screw” No 1008012 OBI.GR, Application: 17/11/2011, Awarded: 22/10/2013, INT CL A61F 2/08.

2) Nikolopoulos Fotios., Kefalas Vassilios. (2013): Patent title:“Orthopedic Screw” No 20130100428 OBI.GR, Application: 19/07/2013.

3) Nikolopoulos Fotios., Kefalas Vassilios. (2013): Patent title: “Orthopedic Screw with tool of insertion” No 20140100199 OBI.GR, Application: 18/03/2014.

Funding

The authors declare there was no funding for this work.


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