Page 104 - Manual of Equine Field Surgery
P. 104

100                       LIMB  SURGERIES







                                                                                                                                                 overlapping  of and  tension  on  the  instruments


                                                                                                                                                bring  the  DDFT to,  but  not  out  of,  the  incision.


                                                                                                                                                The DDFT is then transected  with a No.  10 blade



                                                                                                                                                 (Figure  16-7).  If  the  distal  check  ligament  is


                                                                                                                                                present  at the  level  of the  incision,  it is isolated


                                                                                                                                                and transected with the  DDFT.  After transection,


                                                                                                                                                the  heel  elevation  can  be  removed  to  check  for


                                                                                                                                                adequate gap formation between the tendon  ends.



                                                                                                                                                Closure  of  the  subcutaneous  tissue  is  optional.


                                                                                                                                                Closure  of the  skin  is  performed  with  an  inter-


                                                                                                                                                rupted  apposing  or  everting  pattern  using  No.


                                                                                                                                                2-0  monofilament suture material.












                                                                                                                                               POSTOPERATIVE CARE










                                                                                                                                                  PqstoP,erative Care




                                                                                                                                                  Bandaging:  A  sterile  dressing is  placed  over the
                                                                       Site  of
                                                                :-1---
                                                                       approach                                                                   incision  and a  half  limb  bandage is  applied.  The

                                                                                                                                                  limb  should  remain  bandaged  for  30  days,  and


                                                                                                                                                  the bandage is changed every 5 to 7 days or more


                                                                                                                                                  frequently  if  needed.

                                                                                                                                                                                           i
                                                                                                                                                  Exetcise  Restridons:  Horses  with  laminitis

                                                                                                                                                  should  be  rested as their  condition  indicates  and


                                                                                                                                                  are not allowed  significant turnout for  a  minimum


                                                                                                                                                  of 6 months. Foals with contracture can be allowed


                                                                                                                                                 turnout  in  a  small  area  after  1  week,  and  the


                                                                                                                                                  amount  of exercise  allowed  is gradually increased


                   Figure 16-5  Incision  location  for deep digital flexor                                                                      over the next 60.  days.  Free choice turnout  should

                   tenotomy.                                                                                                                      not be allowed for up to  6 months.                                       2


                                                                                                                                                 Medications:  Phenylbutazone should be admin-


                                                                                                                                                 istered for  a  minimum  of  5 days.
                                                             J  '
                                                                                                                                                 Suture  Reme>val: Skin  sutures  are  removed  12

                                                                                                                                                 days  postoperatively.


                                                                                                                                                 Other: Continued  corrective shoeing  is an essen-


                                                                                                                                                 tial  component  of  treatment.  Surgery should  not


                                                                                                                                                 be  performed  without  considerations  for  postop-


                                                                                                                                                 erative  corrective  trimming  and  shoeing.  Prin-


                                                                                                                                                 ciples  of  shoeing  to  reestablish  the  normal

                                                                                                                                                 relationship  between  the  solar surface of  P3  and


                                                                                                                                                the  sole  following  deep  digital  flexor  tenotorny


                                                                                                                                                 have  been  describedv' and  are  essential  when


                                                                                                                                                tenotomy is performed  as  a component  of larnini-


                                                                                                                                                tis  treatment.  Foals  with  severe flexural  deformi-


                                                                                                                                                ties  should be trimmed  in  a  normal  fashion.  The

                                                                                                                                                need  for  corrective  shoeing  in  these  cases


                                                                                                                                                depends on the amount  of  release achieved after


                                                                                                                                                tenotomy.


















                 Figure  16-6  Isolation  of  the  deep  digital  flexor

                 tendon.
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