SPINE-TECH, INC. Exhibit 11---Statement Re: Computation of Loss Per Share (unaudited) Three Months Ended Six Months Ended June 30, June 30, --------------------- --------------------- 1996 1995 1996 1995 -------- -------- --------- --------- PRIMARY LOSS PER SHARE: Weighted average shares outstanding 9,824,959 2,249,514 9,765,828 2,180,573 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 -- 353,742 ---------- --------- ----------- --------- 9,824,959 2,603,256 9,765,828 2,534,315 ---------- --------- ----------- --------- ---------- --------- ----------- --------- Net loss $ (585,457) $ (94,122) $ (940,461) $(192,838) ---------- --------- ----------- --------- ---------- --------- ----------- --------- Primary loss per share $ (0.06) $ (0.04) $ (0.10) $ (0.08) ---------- --------- ----------- --------- ---------- --------- ----------- --------- FULLY DILUTED LOSS PER SHARE: Weighted average shares outstanding 9,824,959 6,384,742 9,765,828 6,315,801 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 -- 353,742 ---------- --------- ----------- --------- 9,824,959 6,738,484 9,765,828 6,669,543 ---------- --------- ----------- --------- ---------- --------- ----------- --------- ---------- --------- ----------- --------- Net loss $ (585,457) $ (94,122) $ (940,461) $(192,838) ---------- --------- ----------- ---------- ---------- --------- ----------- ---------- Fully diluted loss per share $ (0.06) $ (0.01) $ (0.10) $ (0.03) ---------- --------- ----------- --------- ---------- --------- ----------- ---------