content: <HTML><HEAD>
  <TITLE>Form 8-K</TITLE>
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  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR SIZE="3" NOSHADE COLOR="#000000" ALIGN="left"><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>UNITED STATES </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="5"
  COLOR="#000000"><B>SECURITIES AND EXCHANGE COMMISSION </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Washington, DC 20549 </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR WIDTH="17%" SIZE="1" NOSHADE COLOR="#000000"><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>FORM 8-K </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
  FACE="Times New Roman" SIZE="4" COLOR="#000000"><B>CURRENT REPORT </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="4" COLOR="#000000"><B>Pursuant to Section 13 or 15(d) of </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="4" COLOR="#000000"><B>the Securities Exchange Act of 1934 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>April 29, 2003 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">Date of Report (date of earliest event reported) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR WIDTH="17%" SIZE="1" NOSHADE COLOR="#000000"><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="6" COLOR="#000000"><B>KYPHON INC. </B></FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Exact name of Registrant as specified in its charter) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT
  SIZE="1">&nbsp;</FONT></P>
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  <TD VALIGN="bottom" WIDTH="31%" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>State of Delaware</B></FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="31%" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>000-49804</B></FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="31%" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>77-0366069</B></FONT></P></TD></TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(State or other jurisdiction of</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">incorporation or organization)</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Commission File Number)</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(I.R.S. Employer</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Identification Number)</FONT></P></TD></TR>
  </TABLE><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>1350
  Bordeaux Drive </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Sunnyvale, California 94089 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Address of principal executive offices) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>(408) 548-6500 </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Registrant&#146;s telephone
  number, including area code) </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>N/A
  </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Former name or former address, if changed since last report) </FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR SIZE="3" NOSHADE COLOR="#000000" ALIGN="left">
  
  <p Style='page-break-before:always'>
  <HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
  
  <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Item&nbsp;7.</B></FONT></TD>
  <TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Financial Statements and Exhibits </B></FONT></TD></TR></TABLE><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>(c)&nbsp;&nbsp;Exhibits </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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  <TD VALIGN="bottom" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>Exhibit&nbsp;No.</B></FONT></P><HR WIDTH="62" SIZE="1" NOSHADE COLOR="#000000"></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>Description</B></FONT></P><HR SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD></TR>
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  <TD HEIGHT="5"></TD></TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="9%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">99.1</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Press Release, dated as of April 29, 2003</FONT></P></TD></TR>
  </TABLE><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
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  <TD WIDTH="9%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Item&nbsp;9.</B></FONT></TD>
  <TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
  <TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Regulation FD Disclosure (pursuant to Item 12) </B></FONT></TD></TR></TABLE><P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">In accordance with SEC Release No. 33-8216, the following information, intended to be furnished under &#147;Item 12. Results of Operations
  and Financial Condition,&#148; is instead furnished under &#147;Item 9. Regulation FD Disclosure&#148; and shall not be deemed &#147;filed&#148; with the Securities and Exchange Commission nor incorporated by reference into any registration
  statement filed by Kyphon Inc. under the Securities Act of 1933. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">On April 29, 2003, Kyphon Inc. issued a press release announcing its results for the three months ended March 31, 2003. The press release is attached as Exhibit 99.1. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT
  SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>SIGNATURES </B></FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P
  STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf
  by the undersigned, thereunto duly authorized. </FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><DIV STYLE="margin-top:0px;margin-bottom:0px" ALIGN="right">
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  <TD VALIGN="top" COLSPAN="3" WIDTH="37%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>KYPHON INC.</B></FONT></P></TD></TR>
  <TR>
  <TD HEIGHT="13"></TD></TR>
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  <TD VALIGN="top" WIDTH="2%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></P></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="37%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">/s/&nbsp;&nbsp;&nbsp;&nbsp;R<SMALL>ICHARD</SMALL> W. M<SMALL>OTT</SMALL></FONT></P><HR SIZE="1" NOSHADE
  COLOR="#000000" ALIGN="left"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Richard W. Mott</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><I>President and Chief Executive Officer</I></FONT></P></TD></TR>
  </TABLE></DIV><P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date: April 29,
  2003 </FONT></P>
  </BODY></HTML>
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metadata_filer: {"company-data": {"conformed-name": "KYPHON INC", "cik": "0001123313", "assigned-sic": "3841", "irs-number": "770366069", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-49804", "film-number": "03669931"}, "business-address": {"street1": "1350 BORDEAUX DR", "city": "SUNNYVALE", "state": "CA", "zip": "94089", "phone": "4085486500"}}
text: Form 8-K
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, DC 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of
  the Securities Exchange Act of 1934
  April 29, 2003
  Date of Report (date of earliest event reported)
  KYPHON INC.
  (Exact name of Registrant as specified in its charter)
  State of Delaware
  000-49804
  77-0366069
  (State or other jurisdiction of
  incorporation or organization)
  (Commission File Number)
  (I.R.S. Employer
  Identification Number)
  1350
  Bordeaux Drive
  Sunnyvale, California 94089
  (Address of principal executive offices)
  (408) 548-6500
  (Registrant's telephone
  number, including area code)
  N/A
  (Former name or former address, if changed since last report)
  Item 7.
  Financial Statements and Exhibits
  (c)  Exhibits
  Exhibit No.
  Description
  99.1
  Press Release, dated as of April 29, 2003
  Item 9.
  Regulation FD Disclosure (pursuant to Item 12)
  In accordance with SEC Release No. 33-8216, the following information, intended to be furnished under "Item 12. Results of Operations
  and Financial Condition," is instead furnished under "Item 9. Regulation FD Disclosure" and shall not be deemed "filed" with the Securities and Exchange Commission nor incorporated by reference into any registration
  statement filed by Kyphon Inc. under the Securities Act of 1933.
  On April 29, 2003, Kyphon Inc. issued a press release announcing its results for the three months ended March 31, 2003. The press release is attached as Exhibit 99.1.
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf
  by the undersigned, thereunto duly authorized.
  KYPHON INC.
  By:
  /s/    R
  ICHARD
  W. M
  OTT
  Richard W. Mott
  President and Chief Executive Officer
  Date: April 29,
  2003