SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C.

                                    FORM 8-K

                 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                          Date of Report: March 4, 1999


                             MEDICAL DYNAMICS, INC.
              ----------------------------------------------------
             (Exact name of Registrant as specified in its charter)

                         Commission file number: 0-8632

          Colorado                                   84-0631765
-------------------------------                      ------------
(State or other jurisdiction of                      (IRS Employer
incorporation or organization)                       Identification Number)


         99 Inverness Drive East
           Englewood, Colorado                           80112
 --------------------------------------                ---------
(Address of principal executive offices)               (Zip Code)


               Registrant's telephone number, including area code:
                                 (303) 790-2990

                                 not applicable
                  --------------------------------------------
                  former name or former address, if applicable




<PAGE>

Item 5.  Other Events.

     On March 4, 1999, Medical Dynamics, Inc. ("MEDY") entered into an agreement
with The Tail Wind Fund,  Ltd.  ("Tail Wind") to amend the terms of the Purchase
Agreement  dated July 31,  1998,  by which  Tail Wind  purchased  $1,100,000  of
convertible  debentures  and  committed  to purchase an  additional  $400,000 in
debentures (the "1998 Debentures"), as announced in MEDY's Form 8-K reporting an
event of July 31, 1998.

     Tail Wind acquired the additional  $400,000 in 1998  Debentures in November
1998 pursuant to the first amendment to the Purchase  Agreement.  In addition to
accelerating the purchase  commitment,  that amendment reduced the ceiling price
for the 1998  Debentures  from 120% of the  Market  Price to 105% of the  Market
Price.  "Market  Price" is defined in the 1998 Debenture to mean "the average of
the two lowest  closing bid prices of the Common Stock as reported by The Nasdaq
Stock Market over the sixty trading day period ending on the date in question."

     The amendment accomplished the following:

1.   The parties extended the conversion rights of the 1998 Debentures,  so that
     only one-third of the 1998 Debentures are currently convertible;  one-third
     becomes  convertible on and after June 1, 1999; and the remaining one-third
     becomes convertible on and after January 1, 2000.

2.   The parties  agreed that Tail Wind could  convert 1998  Debentures  into no
     more than 1,880,000  shares of Common Stock  (including  shares issuable as
     interest upon the 1998  Debentures and upon exercise of the 1998 Warrants),
     regardless  of Market  Price.  To the extent the 1998  Debentures  would be
     convertible into more than 1,880,000 shares of Common Stock,  Tail Wind can
     demand  that  MEDY  redeem  those  Debentures  for  115%  of the  remaining
     principal amount.

Item 7.  Financial Statements and Exhibits

     (A) and (B) Financial Statements

                  None

     (C) Exhibits

     1.   Amendment No. 1 to Purchase  Agreement between Medical Dynamics,  Inc.
          and The Tail Wind Fund, Ltd.

     2.   Amendment No. 2 to Purchase  Agreement between Medical Dynamics,  Inc.
          and The Tail Wind Fund, Ltd.



<PAGE>




                                   SIGNATURES

     Pursuant to the  requirements  of the  Securities  Exchange Act of 1934, as
amended,  the  registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.

                                                 MEDICAL DYNAMICS, INC.



March 9, 1999                                    By: /s/ Van A. Horsley
                                                     ---------------------------
                                                     Van A. Horsley, President
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SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C.

                                    FORM 8-K

                 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                          Date of Report: March 4, 1999

                             MEDICAL DYNAMICS, INC.
              ----------------------------------------------------
             (Exact name of Registrant as specified in its charter)

                         Commission file number: 0-8632

          Colorado                                   84-0631765
-------------------------------                      ------------
(State or other jurisdiction of                      (IRS Employer
incorporation or organization)                       Identification Number)

         99 Inverness Drive East
           Englewood, Colorado                           80112
 --------------------------------------                ---------
(Address of principal executive offices)               (Zip Code)

               Registrant's telephone number, including area code:
                                 (303) 790-2990

                                 not applicable
                  --------------------------------------------
                  former name or former address, if applicable
Item 5.  Other Events.

     On March 4, 1999, Medical Dynamics, Inc. ("MEDY") entered into an agreement
with The Tail Wind Fund,  Ltd.  ("Tail Wind") to amend the terms of the Purchase
Agreement  dated July 31,  1998,  by which  Tail Wind  purchased  $1,100,000  of
convertible  debentures  and  committed  to purchase an  additional  $400,000 in
debentures (the "1998 Debentures"), as announced in MEDY's Form 8-K reporting an
event of July 31, 1998.

     Tail Wind acquired the additional  $400,000 in 1998  Debentures in November
1998 pursuant to the first amendment to the Purchase  Agreement.  In addition to
accelerating the purchase  commitment,  that amendment reduced the ceiling price
for the 1998  Debentures  from 120% of the  Market  Price to 105% of the  Market
Price.  "Market  Price" is defined in the 1998 Debenture to mean "the average of
the two lowest  closing bid prices of the Common Stock as reported by The Nasdaq
Stock Market over the sixty trading day period ending on the date in question."

     The amendment accomplished the following:

1.   The parties extended the conversion rights of the 1998 Debentures,  so that
     only one-third of the 1998 Debentures are currently convertible;  one-third
     becomes  convertible on and after June 1, 1999; and the remaining one-third
     becomes convertible on and after January 1, 2000.

2.   The parties  agreed that Tail Wind could  convert 1998  Debentures  into no
     more than 1,880,000  shares of Common Stock  (including  shares issuable as
     interest upon the 1998  Debentures and upon exercise of the 1998 Warrants),
     regardless  of Market  Price.  To the extent the 1998  Debentures  would be
     convertible into more than 1,880,000 shares of Common Stock,  Tail Wind can
     demand  that  MEDY  redeem  those  Debentures  for  115%  of the  remaining
     principal amount.

Item 7.  Financial Statements and Exhibits

     (A) and (B) Financial Statements

                  None

     (C) Exhibits

     1.   Amendment No. 1 to Purchase  Agreement between Medical Dynamics,  Inc.
          and The Tail Wind Fund, Ltd.

     2.   Amendment No. 2 to Purchase  Agreement between Medical Dynamics,  Inc.
          and The Tail Wind Fund, Ltd.
SIGNATURES

     Pursuant to the  requirements  of the  Securities  Exchange Act of 1934, as
amended,  the  registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.

                                                 MEDICAL DYNAMICS, INC.

March 9, 1999                                    By: /s/ Van A. Horsley
                                                     ---------------------------
                                                     Van A. Horsley, President