Stryker Corporation (the Company) issued a press release on December 19, 2008 announcing it reduced its 2008 guidance. A copy of this press release is attached hereto as Exhibit 99.1.

In its press release, the Company made references to the following financial measures: "constant currency," "adjusted diluted net earnings per share" and "adjusted diluted net earnings per share from continuing operations." These financial measures are an alternative representation of the Company's past and potential future operational performance and do not replace the presentation of the Company's reported financial results under U.S. generally accepted accounting principles (GAAP). The Company has provided these supplemental non-GAAP financial measures because they provide meaningful information regarding the Company's results on a consistent and comparable basis for the periods presented. Management uses these non-GAAP financial measures for reviewing the operating results of its business segments, for analyzing potential future business trends in connection with its budget process and bases certain annual bonus plans on these non-GAAP financial measures. In order to measure the Company's sales performance on a constant currency basis, it is necessary to remove the impact of changes in foreign currency exchange rates which affects the comparability and trend of sales. Constant currency results are calculated by translating current year results at prior year average foreign currency exchange rates. In order to measure the Company's earnings performance on a consistent and comparable basis, the Company excludes the restructuring charge to be recorded in the fourth quarter of 2008 and the intangible asset impairment charge recorded in the second quarter of 2007, both of which affect the comparability of operating results and the trend of earnings. In addition, the Company believes investors will utilize this information to evaluate period-to-period results on a comparable basis and to better understand potential future operating results. The Company encourages investors and other users of these financial statements to review its consolidated financial statements and other publicly filed reports in their entirety and not to rely solely on any single financial measure.

The reconciliation of projected reported diluted net earnings per share to adjusted diluted net earnings per share before the restructuring charge for the year ended December 31, 2008 is as follows:

Projected results:                                            Range
Reported diluted net earnings per share of common stock   $2.77 to $2.79
Restructuring charge                                       $.05     $.05
Adjusted diluted net earnings per share of common stock   $2.82 to $2.84

The reconciliation of reported diluted net earnings per share from continuing operations to adjusted diluted net earnings per share from continuing operations before the intangible asset impairment for the year ended December 31, 2007 is as follows:

Reported diluted net earnings per share of common stock from continuing
operations                                                                  $2.37
Intangible asset impairment                                                  $.03
Adjusted diluted net earnings per share of common stock from continuing
operations                                                                  $2.40
Weighted-average diluted shares outstanding (in millions)                   417.2

The weighted-average diluted shares outstanding used in the calculation of these non-GAAP financial measures are the same as the weighted-average diluted shares outstanding used in the calculation of the reported per share amount.

The press release also contains information that includes or is based on forward-looking statements within the meaning of the federal securities law that are subject to various risks and uncertainties that could cause the Company's actual results to differ materially from those expressed or implied in such statements. Such factors include, but are not limited to: further weakening of the economy; changes in foreign exchange markets; pricing pressures generally, including cost-containment measures that could adversely affect the price of or demand for the Company's products; regulatory actions; changes in reimbursement levels from third-party payors; a significant increase in product liability claims; changes in financial markets; and changes in the competitive environment. Additional information concerning these and other factors is contained in the Company's filings with the United States Securities and Exchange Commission, including the Company's Annual Report on Form 10-K and Quarterly Reports on Form 10-Q.

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