SPINE-TECH, INC. EXHIBIT 11--STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE (unaudited) THREE MONTHS ENDED MARCH 31, ---------------------------- 1996 1995 -------------- ------------ PRIMARY LOSS PER SHARE: Weighted average shares outstanding 9,706,697 2,111,250 SAB No. 83 shares -- for stock options granted at exercise prices less than the initial public offering price during the 12 months preceding the initial public offering using the treasury stock method -- 353,742 -------------- ------------ 9,706,697 2,464,992 -------------- ------------ -------------- ------------ Net loss $ (355,004) $ (98,716) -------------- ------------ -------------- ------------ Primary loss per share $ (0.04) $ (0.04) -------------- ------------ -------------- ------------ FULLY DILUTED LOSS PER SHARE: Weighted average shares outstanding 9,706,697 6,246,478 SAB No. 83 shares -- for stock options granted at exercise prices less than the initial public offering price during the 12 months preceding the initial public offering using the treasury stock method -- 353,742 -------------- ------------ 9,706,697 6,600,220 -------------- ------------ -------------- ------------ -------------- ------------ Net loss $ (355,004) $ (98,716) -------------- ------------ -------------- ------------ Fully diluted loss per share $ (0.04) $ (0.01) -------------- ------------ -------------- ------------