CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM     To the Board of Directors Bacterin International Holdings, Inc.   We hereby consent to the incorporation by reference in Registration Statements No. 333-175469 on Form S-3 and No. 333-172891 on Form S-8 of Bacterin International Holdings, Inc. of our report dated April 7, 2011, with respect to the consolidated balance sheet of Bacterin International Holdings, Inc. as of December 31, 2010, and the related consolidated statements of operations and comprehensive income, changes in stockholders’ equity and cash flows for the year ended December 31, 2010, included in this Annual Report on Form 10-K for the year ended December 31, 2011.     /s/ CHILD, VAN WAGONER & BRADSHAW, PLLC CHILD, VAN WAGONER & BRADSHAW, PLLC Salt Lake City, Utah March 29, 2012