Page 93 - Manual of Equine Field Surgery
P. 93

'                                                                                                                                                               Proximal  Check  Ligament  Desmotomy                                                        89













                                                                                            a                              b (cut)                                      _...,.,  I   i 5J.M.,









                                                                                                                                               c





















                                                                                       d                                            ;::::::::::::::::::::::::::::====:;;;;~  '1f-_~t;,.:l,·a,,,_.




                         Figure  14-7  Retraction  of the  flexor carpi radialis caudally to expose the  proximal  check ligament  fused with  the


                         deep sheet  of flexor retinaculum.  a, Antebrachial  fascia; b,  cut  end  of the  deep communicating  branch  to the proxi-


                         mal radial vein; c, proximal  check ligament; d, tendon  of flexor carpi radialis muscle; e,  tendon  sheath  of flexor carpi


                         radialis muscle; f, deep sheet of flexor retinaculum;  g,  superficial sheet  of flexor retinaculum.

























































                                                                                                                                         Deep)              Layers  of proximal  check  lig.
                                                                                                                                         rf  .

                                                                                                                               S  upe  rcia        1

                                                                                                                                                                                                                   ~t;"..:l,a,,,_.


                          Figure  14-8                   Transection  of the  proximal  check ligament.  a, Deep  communicating  branch  to  the proximal  radial


                         vein; b, proximal  radial artery  (palmar carpal branch),  c, deep sheet of flexor retinaculum;  d, superficial sheet of flexor


                          retinaculum.














                                                                                                                                                                                    b































                                                                                                                                                                      Carpal  sheath
                                                                                                                                                                                                                                 ~!; • .Ca,,,.._


                                                                                                                                                     Figure  14-10                      The  carpal sheath  exposed after tran-


                                                                                                                                                     section  of the  proximal  check ligament.  a,  Superficial


                                                                                                                                                     sheet of flexor retinaculum;  b,  deep sheet of flexor reti-
                          Figure  14-9  Visualization  of the muscle belly of the
                                                                                                                                                     naculurn;  c,  proximal  radial  artery  (palmar  carpal
                          radial  head  of  the  deep  digital  flexor  tendon  (arrow)

                          after transection  of the proximal  check ligament .                                                                       branch).

















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