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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 gpCp5MIm7ocgG7kbvJeU8A==

<SEC-DOCUMENT>0000903423-09-000178.txt : 20090227
<SEC-HEADER>0000903423-09-000178.hdr.sgml : 20090227
<ACCEPTANCE-DATETIME>20090227185626
ACCESSION NUMBER:		0000903423-09-000178
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090225
FILED AS OF DATE:		20090227
DATE AS OF CHANGE:		20090227

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BONDERMAN DAVID
		CENTRAL INDEX KEY:			0000860866

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52082
		FILM NUMBER:		09644947

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8178714040

	MAIL ADDRESS:	
		STREET 1:		C/O COSTAR GROUP INC
		STREET 2:		7475 WISCONSIN AVENUE #600
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20814

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REPLIDYNE INC
		CENTRAL INDEX KEY:			0001180145
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				841568247
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1450 INFINITE DRIVE
		CITY:			LOUISVILLE
		STATE:			CO
		ZIP:			80027
		BUSINESS PHONE:		303-665-3450

	MAIL ADDRESS:	
		STREET 1:		1450 INFINITE DRIVE
		CITY:			LOUISVILLE
		STATE:			CO
		ZIP:			80027

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tarrant Advisors, Inc
		CENTRAL INDEX KEY:			0001339181

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52082
		FILM NUMBER:		09644949

	BUSINESS ADDRESS:	
		STREET 1:		301 COMMERCE STREET, SUITE 3300
		CITY:			FORT WORTH
		STATE:			TX
		ZIP:			76102
		BUSINESS PHONE:		817 871 4014

	MAIL ADDRESS:	
		STREET 1:		301 COMMERCE STREET, SUITE 3300
		CITY:			FORT WORTH
		STATE:			TX
		ZIP:			76102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			COULTER JAMES G
		CENTRAL INDEX KEY:			0001099776

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-52082
		FILM NUMBER:		09644948

	BUSINESS ADDRESS:	
		STREET 1:		345 CALIFORNIA SHEET
		STREET 2:		SUITE 3300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4157431500

	MAIL ADDRESS:	
		STREET 1:		345 CALIFORNIA STREET
		STREET 2:		SUITE 3300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tarrant-replidynef4_0227ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-02-25</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001180145</issuerCik>
        <issuerName>REPLIDYNE INC</issuerName>
        <issuerTradingSymbol>CSII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001339181</rptOwnerCik>
            <rptOwnerName>Tarrant Advisors, Inc</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TPG GROWTH, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>301 COMMERCE STREET, SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>FORT WORTH</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former 10% Owner (1) (2)</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000860866</rptOwnerCik>
            <rptOwnerName>BONDERMAN DAVID</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>301 COMMERCE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>FORT WORTH</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former 10% Owner (1) (2)</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001099776</rptOwnerCik>
            <rptOwnerName>COULTER JAMES G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>301 COMMERCE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>FORT WORTH</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former 10% Owner (1) (2)</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <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. (&quot;Tarrant Advisors&quot; and, together with Messrs. Bonderman and
 Coulter, the &quot;Reporting Persons&quot;), 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 (&quot;TPG Ventures&quot;).  TPG Biotech
 Advisors, LLC is the general partner of TPG Biotechnology GenPar, LP, which is the general partner of TPG Biotechnology
 Partners, LP (&quot;TPG Biotech&quot; and together with TPG Ventures, the &quot;TPG Funds&quot;).  The TPG Funds directly hold previously
 reported shares of common stock  (&quot;Shares&quot;) 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 &quot;Exchange Act&quot;), 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.</remarks>

    <ownerSignature>
        <signatureName>/s/ Clive D. Bode, Vice President, Tarrant Advisors, Inc. (3)</signatureName>
        <signatureDate>2009-02-27</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Clive D. Bode, on behalf of David Bonderman  (3) (4)</signatureName>
        <signatureDate>2009-02-27</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Clive D. Bode, on behalf of James G. Coulter  (3) (4)</signatureName>
        <signatureDate>2009-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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