POWER OF ATTORNEY


     Know all by these presents, that the undersigned hereby constitutes and
appoints Kevin Ontiveros, the Chief Legal Officer, Chief Compliance Officer, and
Corporate Secretary of Amedica Corporation (the "Company"), Amy N. Wood,
Corporate Paralegal for the Company, and Daniel Kajunski, Anthony Hubbard,
Kanasha Herbert, Jonathan Ursprung and Caroline Gammill, each of Mintz, Levin,
Cohn, Ferris, Glovsky and Popeo, P.C., signing singly, with full power of
substitution, the undersigned's true and lawful attorney-in-fact to:

     (1)  execute for and on behalf of the undersigned, forms and authentication
          documents for EDGAR Filing Access;

     (2)  do and perform any and all acts for and on behalf of the undersigned
          which may be necessary or desirable to complete and execute any such
          forms and authentication documents;

     (3)  execute for and on behalf of the undersigned, in the undersigned's
          capacity as an officer, director and/or 10% shareholder of the
          Company, Forms 3, 4 and 5 in accordance with Section 16(a) of the
          Securities Exchange Act of 1934 and the rules thereunder;

     (4)  do and perform any and all acts for and on behalf of the undersigned
          which may be necessary or desirable to complete and execute any such
          Form 3, 4 or 5 and timely file such form with the United States
          Securities and Exchange Commission and any stock exchange or similar
          authority; and

     (5)  take any other action of any type whatsoever in connection with the
          foregoing which, in the opinion of such attorney-in-fact, may be of
          benefit to, in the best interest of, or legally required by, the
          undersigned, it being understood that the documents executed by such
          attorney-in-fact, on behalf of the undersigned pursuant to this Power
          of Attorney, shall be in such form and shall contain such terms and
          conditions as such attorney-in-fact may approve in such
          attorney-in-fact's discretion.

      The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, is not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed this 3rd day of Dec, 2013.


                                  /s/ Christopher R. Whitfield
                                  ------------------------------------
                                  Signature

                                  Christopher R. Whitfield
                                  ------------------------------------
                                  Print Name