SPINE-TECH, INC. EXHIBIT 11 - STATEMENT RE: COMPUTATION OF NET INCOME (LOSS) PER SHARE Year ended December 31, 1996 1995 1994 ---------- ---------- ---------- PRIMARY LOSS PER SHARE: Average shares outstanding 9,831,733 5,633,473 2,090,000 Common share equivalents -- 1,534,143 -- SAB No. 83 shares -- for stock options granted at an exercise price less than the initial public offering price during the 12 months preceding the initial public offering using the treasury method -- 93,850 375,398 ---------- ---------- ---------- Total 9,831,733 7,261,466 2,465,398 ---------- ---------- ---------- ---------- ---------- ---------- Net income (loss) $ (247,000) $ 268,000 $ (379,000) ---------- ---------- ---------- ---------- ---------- ---------- Net income (loss) per share $ (0.02) $ 0.04 $ (0.18) ---------- ---------- ---------- ---------- ---------- ---------- FULLY DILUTED LOSS PER SHARE: Average shares outstanding 9,831,733 5,633,473 2,090,000 Common share equivalents -- 1,637,220 -- Preferred stock on an as if converted basis 2,277,208 4,135,232 SAB No. 83 shares -- for stock options granted at an exercise price less than the initial public offering price during the 12 months preceding the initial public offering using the treasury method -- 93,850 375,398 ---------- ---------- ---------- Total 9,831,733 9,641,751 6,600,630 ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- Net income (loss) $ (247,000) $ 268,000 $ (379,000) ---------- ---------- ---------- ---------- ---------- ---------- Net income (loss) per share $ (0.02) $ 0.03 $ (0.06) ---------- ---------- ---------- ---------- ---------- ----------