Page 102 - Manual of Equine Field Surgery
P. 102

CHAPTER                                                                   16









                                                                                      Deep Digital Flexor Tenotomy








                                                                                                                     Joanne Kramer

































                        INDICATIONS                                                                                                                POSITIONING AND PREPARATION






                        Severe distal interphalangeal  joint contracture  or                                                                       The  procedure  is most  often  performed  with  the



                        severe laminitis  with  rotation  of the third phalanx                                                                     horse  standing  in adult  horses  with  laminitis  and


                        (P3)  (Figures  16-1  and 16-2).                                                                                           recumbent  in foals with  severe deep  digital flexor


                                                                                                                                                   tendon  (DDFT)  contracture.  Whe11  performed


                                                                                                                                                   with  the  horse  standing,  heel  wedges  are  tem-


                        EQUIPMENT                                                                                                                  porarily  placed on the horse to take tension  off the



                                                                                                                                                   DDFT  during  the  procedure.  A  high  palmar-


                        A heel wedge is used  during  standing  procedures.                                                                        palmar  metacarpal  nerve  block  or  inverted-LI


                        Modified  table  knives  or  malleable  retractors  are                                                                    block  is  performed  in  the  proximal  metacarpal


                        useful when  isolating  the  tendon  during  transec-                                                                      region.  The  limb  is clipped  circumferentially  and


                                  1
                        tion  (Figure  16-3).                                                                                                      prepared  for aseptic surgery in the mid metacarpal

                                                                                                                                                   region,  A  sterile  adhesive  drape  or  short  drapes


                                                                                                                                                   proximal  and  distal to the site are used.








































































                        Figure  16-1                       Severe  deep  digital  flexor  tendon                                                    Figure  16-2                    Laminitis  with  rotation  of  the  third


                        contracture.                                                                                                               phalanx.






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