Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Tarrant Advisors, Inc
  2. Issuer Name and Ticker or Trading Symbol
REPLIDYNE INC [CSII]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Former 10% Owner (1) (2)
(Last)
(First)
(Middle)
C/O TPG GROWTH, LLC, 301 COMMERCE STREET, SUITE 3300
3. Date of Earliest Transaction (Month/Day/Year)
02/25/2009
(Street)

FORT WORTH, TX 76102
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Tarrant Advisors, Inc
C/O TPG GROWTH, LLC
301 COMMERCE STREET, SUITE 3300
FORT WORTH, TX 76102
      Former 10% Owner (1) (2)
BONDERMAN DAVID
301 COMMERCE STREET
SUITE 3300
FORT WORTH, TX 76102
      Former 10% Owner (1) (2)
COULTER JAMES G
301 COMMERCE STREET
SUITE 3300
FORT WORTH, TX 76102
      Former 10% Owner (1) (2)

Signatures

 /s/ Clive D. Bode, Vice President, Tarrant Advisors, Inc. (3)   02/27/2009
**Signature of Reporting Person Date

 /s/ Clive D. Bode, on behalf of David Bonderman (3) (4)   02/27/2009
**Signature of Reporting Person Date

 /s/ Clive D. Bode, on behalf of James G. Coulter (3) (4)   02/27/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
 
Remarks:
(1) David Bonderman and James G. Coulter are directors, officers and sole shareholders of Tarrant Capital Advisors, Inc.,
 which is the sole shareholder of Tarrant Advisors, Inc. ("Tarrant Advisors" and, together with Messrs. Bonderman and
 Coulter, the "Reporting Persons"), which is the general partner of TPG Ventures Professionals, LP, which in turn is the
 general partner of TPG Ventures Partners, LP, which is the managing member of TPG Ventures Holdings, LLC, which is the sole
 member of each of TPG Ventures Advisors, LLC and TPG Biotechnology Advisors, LLC.  TPG Ventures Advisors, LLC is the general
 partner of TPG Ventures GenPar, LP, which is the general partner of TPG Ventures, LP ("TPG Ventures").  TPG Biotech
 Advisors, LLC is the general partner of TPG Biotechnology GenPar, LP, which is the general partner of TPG Biotechnology
 Partners, LP ("TPG Biotech" and together with TPG Ventures, the "TPG Funds").  The TPG Funds directly hold previously
 reported shares of common stock  ("Shares") of the Issuer. Because of the Reporting Persons' relationships to the TPG
 Funds, they may be deemed to beneficially own such Shares to the extent of the greater of their respective pecuniary
 interests in the profits or capital accounts of the TPG Funds.  Pursuant to Rule 16a-1(a)(4) under the Securities Exchange
 Act of 1934 (the "Exchange Act"), this filing shall not be deemed an admission that the Reporting Persons are,
 for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any Shares in excess of such amounts.
(2) Following the merger of Cardiovascular Systems, Inc. into the Issuer effective 2/25/09, the TPG Funds no longer
 hold over 10% of the Shares and the Issuer's name changed to  Cardiovascular Systems, Inc.
(3) The Reporting Persons are jointly filing this Form 4 under Exchange Act Rule 16a-3(j).
(4) Mr. Bode is signing on behalf of Messrs. Bonderman and Coulter pursuant to previously filed authorizations.

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