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. 2010 May 9;5:30. doi: 10.1186/1749-799X-5-30

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Copyright ©2010 Khajavi et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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(A) The testing apparatus consists of a bipolar hemiarthroplasty attached to a servohydraulic materials testing machine (858 Mini Bionix, MTS, Eden Prairie, MN). The customized jig was oriented to allow femoral head loading to be oriented 45 degrees superomedially (coronal plane) and 25 degrees posteriorly. (B) The hemiarthroplasty head is in the acetabulum at the top of the figure. To the left is the ischium and to the right is the ilium. The numbered pins were used to record motion at the fracture site.