UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

          Date of Report (Date of earliest event reported): May 8, 2005

                    INTEGRA LIFESCIENCES HOLDINGS CORPORATION
             (Exact name of Registrant as specified in its charter)



           Delaware                      0-26224                 51-0317849
 (State or other jurisdiction     (Commission File Number)    (I.R.S. Employer
of incorporation or organization)                            Identification No.)

                              311 Enterprise Drive
                              Plainsboro, NJ 08536
               (Address of principal executive offices) (Zip Code)

      Registrant's telephone number, including area code: (609) 275-0500

                                 Not Applicable
          (Former name or former address, if changed since last report)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[  ] Written communications pursuant to Rule 425 under the Securities Act
     (17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
     (17 CFR 240.14a-12)

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))


ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. On May 8, 2005, Integra LifeSciences Holdings Corporation issued a press release announcing financial results for the quarter ended March 31, 2005. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference into this Item. The information contained in Item 2.02 of this Current Report on Form 8-K (including the press release) is being furnished and shall not be deemed "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that Section. The information contained in Item 2.02 of this Current Report on Form 8-K (including the press release) shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in any such filing. ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits. Exhibit Number Description of Exhibit - ------------------- --------------------------- 99.1 Press release issued May 8, 2005 regarding financial results for the quarter ended March 31, 2005.

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. INTEGRA LIFESCIENCES HOLDINGS CORPORATION Date: May 9, 2005 By: /s/ Stuart M. Essig ----------------------------- Stuart M. Essig President and Chief Executive Officer

Exhibit Index Exhibit Number Description of Exhibit - ------------------- --------------------------- 99.1 Press release issued May 8, 2005 regarding financial results for the quarter ended March 31, 2005.

News Release

Contacts:

Integra LifeSciences Holdings Corporation

David B. Holtz                             Maria Platsis
Senior Vice President, Finance             Senior Director of Investor Relations
(609) 936-2334                             and Corporate Development
dholtz@Integra-LS.com                      (609) 936-2333
                                           mplatsis@Integra-LS.com


                  Integra LifeSciences Reports Record Revenues
                           for the First Quarter 2005


Plainsboro, New Jersey, May 8, 2005 - Integra LifeSciences Holdings Corporation
(NASDAQ: IART) today reported its first quarter financial results. Total
revenues in the first quarter of 2005 were $65.8 million, reflecting an increase
of $13.4 million, or 26%, over the first quarter of 2004.

We reported net income of $8.4 million, or $0.26 per diluted share, for the
first quarter of 2005, compared to net income of $7.4 million, or $0.23 per
diluted share in the first quarter of 2004.

When adjusted for certain acquisition and integration related charges, net
income for the first quarter of 2005 was $9.0 million, or $0.27 per diluted
share. These charges included costs associated with the closing of various
facilities and related transitions, foreign dealer terminations, and other
acquisition and integration related costs, including inventory fair value
purchase accounting adjustments.

Operating income for the period was $13.0 million.

"We achieved record revenues in the first quarter," said Stuart M. Essig,
Integra's President and Chief Executive Officer. "During the quarter, we began
the integration of the Newdeal group's international business with our existing
international sales and distribution network and established the domestic
infrastructure to initiate the direct sale, marketing and distribution of the
Newdeal products in the US. In addition, we expanded our domestic Reconstructive
Surgery salesforce with a focus on extremities, increased administrative
headcount and continued to consolidate certain of our operations. We also
recently announced our third generation duraplasty product, the Suturable
DuraGen(TM) Dural Regeneration Matrix."

Our revenues for the period were as follows:
Three Months Ended March 31, % Increase/ 2005 2004 (Decrease) ---- ---- ---------- ($ in thousands) Product Revenue: Implants $25,888 $18,332 41% Instruments 22,527 16,043 40% Monitoring 11,374 11,198 2% Private label 6,010 5,862 3% ----- ------ -- Total Product Revenue 65,799 51,435 28% Other revenue 40 1,008 (96%) ------ ------ ----- Total Revenue $65,839 $52,443 26%
Rapid growth in the NeuraGen(TM) Nerve Guide, the INTEGRA(R) Dermal Regeneration Template and the INTEGRA(TM) Bilayer Matrix Wound Dressing products, and new sales of Newdeal products for the foot and ankle accounted for most of the increase in implant product revenues. Sales of our NeuraGen(TM) and NeuraWrap(TM) products increased 96% over the prior year period. Sales of our dermal repair products, including the INTEGRA(R) Dermal Regeneration Template, the INTEGRA(TM) Bilayer Matrix Wound Dressing, and the INTEGRA(TM) Matrix Wound Dressing products, increased 56% over the first quarter of 2004. Newdeal product revenues of $4.5 million met our expectations for the quarter. Sales of the NPH(TM) Low Flow Hydrocephalus Valve that we introduced in late 2004 also contributed to the growth in implant product revenues for the quarter. Our DuraGen family of duraplasty products continued to grow, albeit at slower rates than in recent years. Increased sales of our JARIT(R) surgical instrument lines and recently acquired product lines provided the year-over-year growth in instrument product revenues for the first quarter. JARIT(R) sales grew 17% over the first quarter of 2004, and we had our strongest quarter of Mayfield(R) product revenue since we acquired the line in May 2004. Year-over-year growth in monitoring product revenues was slower than expected because of slower-than-expected acceptance of our LICOX(R) Brain Oxygen Monitoring System in the United States and slower growth in external drainage systems. We expect that the launch of Integra's NeuroSensor(R) cerebral blood flow monitoring system later this year will improve the performance of this category. Increased revenues of the Absorbable Collagen Sponge that we supply for use in Medtronic's INFUSE(TM) bone graft product offset the removal of the Signature Technologies revenues from our private label products category. Excluding recently acquired product lines, first quarter 2005 product revenues increased by $5.0 million, or 10%, over the prior year period. We continue to expect organic revenue growth to accelerate in the second half of 2005. Gross margin on total revenues in the first quarter of 2005 was 63%. Our gross margin was positively affected by changes in the mix of our products sold during the quarter. Our gross margin for the quarter includes inventory fair value purchase accounting adjustments of $269,000 from the Newdeal acquisition, which had a negative impact of 1% on our gross margin. Research and development expense increased $536,000 to $3.4 million in the first quarter of 2005. Selling, general and administrative expense increased by $6.9 million to $23.9 million in the first quarter of 2005, increasing as a percentage of revenue to 36% from 32% in the prior year period. This increase was primarily attributable to selling, general and administrative expense of acquired operations, as well as accelerated hiring to support our growth, particularly in reconstructive surgery. We reported net interest income of $27,000 in the first quarter of 2005 compared to $57,000 in the prior year period. Other expense in the first quarter of 2005 was $93,000 and included a $204,000 expense related to the change in the fair value of the foreign exchange collar contract we executed in November 2004 upon agreeing to acquire Newdeal Technologies SA. The Company generated $13.2 million in cash flows from operations in the first quarter of 2005. Our cash and investments totaled $158 million at March 31, 2005. We are updating our expectations for total revenues and earnings per share for 2005 and 2006. In accordance with our usual practice, our expectations for 2005 and 2006 financial performance do not include the impact of acquisitions or other strategic corporate transactions that have not yet closed. Total revenues in 2005 are expected to be between $283 million and $293 million. Total revenues in 2006 are expected to be between $340 million and $350 million. Our guidance for the second quarter of 2005 is for total revenues in the range of $66 million to $69 million. Excluding charges related to acquisitions and integrations, earnings per diluted share in 2005 are expected to be within a range of $1.33 to $1.38 in the full year and $0.28 to $0.30 in the second quarter. On a GAAP reported basis, we expect earnings per share in 2005 to be within a range of $1.31 to $1.36 in the full year and $0.27 to $0.29 in the second quarter. Earnings per diluted share in 2006 are expected to be within a range of $1.65 to $1.75. Our expectation ranges for 2006 earnings per diluted share do not reflect the impact of expensing stock options beginning January 1, 2006 under the accounting standard recently issued by the Financial Accounting Standards Board (FASB). Our Board of Directors has authorized us to repurchase shares of our common stock for an aggregate purchase price not to exceed $40 million through December 31, 2006. We may repurchase shares under this program either in the open market or in privately negotiated transactions. We have scheduled a conference call for 9:00 am EST tomorrow, May 9, 2005, to discuss the financial results for the first quarter of 2005 and forward-looking financial guidance. The call is open to all listeners and will be followed by a question and answer session. Access to the live call is available by dialing (973) 935-8511 or through a listen-only webcast via a link provided on the home page of Integra's website at www.Integra-LS.com. A replay of the conference call will be accessible starting one hour following the live event. Access to the replay is available through May 23, 2005 by dialing (973) 341-3080 (access code 5937953) or through the webcast accessible on our home page. Integra LifeSciences Holdings Corporation is a diversified medical technology company that develops, manufactures, and markets medical devices for use in a variety of applications. The primary applications for our products are neuro-trauma and neurosurgery, reconstructive surgery and general surgery. Integra is a leader in applying the principles of biotechnology to medical devices that improve patients' quality of life. Our corporate headquarters are in Plainsboro, New Jersey, and we have research, manufacturing and distribution facilities located throughout the world. We have approximately 1,200 employees. Please visit our website at (http://www.Integra-LS.com). This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements concerning future financial performance, including projections for revenues, gross margins, earnings per share and cash flows. Such forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from predicted or expected results. Among other things, our ability to maintain relationships with customers of acquired entities, physicians' willingness to adopt our recently launched and planned products and our ability to secure regulatory approval for products in development may adversely affect our future product revenues; our ability to increase sales and product volumes may adversely affect our future gross margins; our ability to integrate acquired businesses, increase product sales and gross margins, and control non-product costs may affect our earnings per share; and our future net income results and our ability to effectively manage working capital may affect our future cash flows. In addition, the economic, competitive, governmental, technological and other factors identified under the heading "Factors That May Affect Our Future Performance" included in the Business section of Integra's Annual Report on Form 10-K for the year ended December 31, 2004 and information contained in subsequent filings with the Securities and Exchange Commission could affect actual results. Regulation G, "Conditions for Use of Non-GAAP Financial Measures," and other provisions of the Securities Exchange Act of 1934, as amended, define and prescribe the conditions for the use of certain non-GAAP financial information. In this news release, we provide "quarterly year-over-year growth in product revenues excluding recently acquired product lines", and "net income adjusted for certain acquisition and integration charges", which are non-GAAP financial measures. We believe that, given our on-going, active strategy of seeking acquisitions, focusing on net income adjusted to exclude costs related to acquisitions and integrations is a useful additional basis to measure the performance of our business operations, both in this quarter and in future periods. A reconciliation of these non-GAAP financial measures to the most comparable GAAP measures is provided in the tables of financial information contained at the end of this news release. Non-GAAP financial measures should not be relied upon to the exclusion of GAAP financial measures. Management believes that these non-GAAP financial measures are important supplemental information to investors which reflect an additional way of viewing aspects of our operations that, when viewed with our GAAP results and the accompanying reconciliations, provides a more complete understanding of factors and trends affecting our ongoing business and operations. Management strongly encourages investors to review our financial statements and filed reports in their entirety and to not rely on any single financial measure. Because non-GAAP financial measures are not standardized, it may not be possible to compare these financial measures with other companies' non-GAAP financial measures having the same or similar names.

INTEGRA LIFESCIENCES HOLDINGS CORPORATION CONSOLIDATED FINANCIAL RESULTS (In thousands, except per share data) (UNAUDITED)

Statement of Operations Data:
------------------------------------------------------ ----------------------- Three Months Ended Three Months Ended March 31, 2005 March 31, 2004 ------------------------------------------------------ ----------------------- Reported Adjustments As Adjusted Reported Total revenues $65,839 $65,839 $52,443 Cost of product revenues 24,133 $269 (a) 23,864 20,001 Research and development 3,359 3,359 2,823 Selling, general and administrative 23,916 517 (b) 23,399 17,007 Amortization 1,475 1,475 883 ----- ------ ------ Total costs and expenses 52,883 786 52,097 40,714 Operating income 12,956 786 13,742 11,729 Interest income (expense), net 27 27 57 Other income (expense), net (93) (93) (17) ------ ------ ------ Income before income taxes 12,890 786 13,676 11,769 Provision for 4,447 283 (c) 4,730 4,331 income taxes ------ ------ ----- Net income $8,443 $503 $8,946 $ 7,438 Earnings per share calculation: Add back of after tax interest 544 544 520 expense ----- ----- ----- Net income for diluted EPS $8,987 $9,490 $7,958 Diluted earnings per share $0.26 $0.27 $0.23 Diluted weighted average Common shares outstanding 35,144 35,144 34,373
Notes: (a) Inventory fair value purchase accounting adjustments (b) Acquisition and integration related costs, including costs associated with the closing of various facilities and related transitions and foreign dealer terminations (c) Adjustment to provision for income taxes for above adjustments

Condensed Balance Sheet Data:
March 31, December 31, 2005 2004 ----- ---- Cash and marketable securities, Including non-current portion $157,931 $195,982 Accounts receivable, net 51,261 46,765 Inventory, net 65,335 55,947 Total assets 470,407 456,713 Current liabilities 30,979 24,234 Long-term debt 118,631 118,900 Total liabilities 156,062 148,890 Stockholders' equity 314,345 307,823
Reconciliation of non-GAAP financial measures to the most comparable GAAP measure: A. Growth in product revenues excluding recently acquired product lines
Quarter Ended Increase March 31, (Decrease) 2005 2004 $ % -------- -------- ------- ----- ($ in thousands) Total product revenues, as reported $ 65,799 $ 51,435 $14,364 28% Less: Product revenues acquired in 2004 and 2005 9,372 -- 9,372 N/A -------- -------- ------- ----- Product revenues excluding acquired products $ 56,427 $ 51,435 $ 4,992 10%
B. Reconciliation of Net Earnings and Adjusted Net Earnings
Quarter Ended March 31, 2005 2004 -------- -------- ($ in thousands) Net Income $ 8,443 $ 7,438 Inventory fair value adjustments 269 -- Acquisition and integration related costs 517 -- Tax effect on above adjustments (283) -- -------- -------- Adjusted Net Income $ 8,946 $ 7,438
C. Reconciliation of Diluted EPS and Adjusted Diluted EPS
Quarter Ended March 31, 2005 2004 -------- -------- Diluted EPS $0.26 $0.23 Inventory fair value adjustments 0.01 -- Acquisition and integration related costs 0.01 -- Tax effect on above adjustments (0.01) -- ------ ------ Adjusted Diluted EPS $0.27 $0.23
D. Reconciliation of Projected Diluted EPS and Projected Adjusted Diluted EPS
Range --------------------- Projected three months ended June 30, 2005: Diluted EPS $0.27 $0.29 Inventory fair value adjustments, net of tax 0.01 0.01 ----- ----- Adjusted Diluted EPS $0.28 $0.30 Projected twelve months ended December 31, 2005: Diluted EPS $1.31 $1.36 Inventory fair value adjustments 0.02 0.02 Acquisition and integration related costs 0.01 0.01 Tax effect on above adjustments (0.01) (0.01) ------ ------ Adjusted Diluted EPS $1.33 $1.38
"MAYFIELD" is a registered trademark of SM USA, Inc., a wholly owned subsidiary of Schaerer Mayfield USA, Inc. Source: Integra LifeSciences Holdings Corporation