EXHIBIT 12.1 DJ ORTHOPEDICS, INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) Historical ----------------------------------------------------------- Years Ended December 31, ----------------------------------------------------------- 2001 2000 1999 1998 1997 ------- ------- ------- ------- ------- Income before income taxes ................... $ 5,201 $ 5,159 $ 9,515 $ 8,345 $10,904 Interest ..................................... 16,673 15,876 7,057 -- 2,072 Amortization of Debt Issuance Costs .......... 919 877 409 -- -- Amortization of Discount on Sr. Notes ........ 204 205 102 -- -- 1/3 of rental expense-operating leases ....... 1,196 1,064 895 1,064 775 ------- ------- ------- ------- ------- Earnings ..................................... $24,193 $23,181 $17,978 $ 9,409 $13,751 Interest ..................................... $16,673 $15,876 $ 7,057 $ -- $ 2,072 Amortization of Debt Issuance Costs .......... 919 877 409 -- -- Amortization of Discount on Sr. Notes ........ 204 205 102 -- -- 1/3 of rental expense-operating leases ....... 1,196 1,064 895 1,064 775 ------- ------- ------- ------- ------- Fixed Charges ................................ $18,992 $18,022 $ 8,463 $ 1,064 $ 2,847 Ratio of Earnings to Fixed Charges ........... 1.27 1.29 2.12 8.84 4.83 ======= ======= ======= ======= =======