1 Exhibit 11.01 Interpore International Computations of Net Income Per Share (in thousands, except per share data) (unaudited) Three months ended March 31, ------------------ 1998 1997 ------ ------ Net income $ 840 $ 259 ====== ====== Shares used in computing net income per share - basic: Weighted average common shares outstanding 7,107 6,963 Effect of dilutive securities: Weighted average convertible preferred stock 33 77 Common share equivalents outstanding 356 276 ------ ------ Shares used in computing net income per share - diluted 7,496 7,316 ====== ====== Net income per share - basic $ 12 $ .04 ====== ====== Net income per share - diluted $ .11 $ .04 ====== ====== 17