POWER OF ATTORNEY

Know all by these presents that Eric Major, does hereby make, constitute and
appoint each of Gregory S. Cole and Luke R. Miller, or any one of them, as a
true and lawful attorney-in-fact of the undersigned with full powers of
substitution and revocation, for and in the name, place and stead of the
undersigned (in the undersigned's individual capacity), to execute and deliver
such forms that the undersigned may be required to file with the U.S. Securities
and Exchange Commission as a result of the undersigned's ownership of or
transactions in securities of K2M Group Holdings, Inc. (i) pursuant to Section
16(a) of the Securities Exchange Act of 1934, as amended, including without
limitation, statements on Form 3, Form 4 and Form 5 (including any amendments
thereto) and (ii) in connection with any applications for EDGAR access codes,
including without limitation the Form ID. The 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 regard to his ownership of or transactions in securities of K2M
Group Holdings, Inc., unless earlier revoked in writing. The undersigned
acknowledges that Gregory S. Cole and Luke R. Miller are not assuming any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

                                        By:  /s/ Eric D. Major
                                             -----------------------------------



                                        Date:  April 30, 2014