Standard Surgical Technique for Applying Rod Through Plate (RTP) Internal Fixator – An Experimental Study in Sheep

  • Garri Tralman Estonian University of Life Sciences, Department of Surgery
  • Vladimir Andrianov Estonian University of Life Sciences, Department of Surgery
  • Neeme Talvi Estonian University of Life Sciences, Department of Surgery
  • Andres Arend Department of Anatomy, Faculty of Medicine, University of Tartu, Biomedicum
  • Piret Männik Department of Anatomy, Faculty of Medicine, University of Tartu, Biomedicum
  • Denis Uksov Department of Anatomy, Faculty of Medicine, University of Tartu, Biomedicum
  • Marina Aunapuu Estonian University of Life Sciences, Department of Surgery and Department of Anatomy, Faculty of Medicine, University of Tartu, Biomedicum

Abstract

The standard surgical technique for applying a rod through plate (RTP) internal fixator to treat long bone  fractures was carried out. The experiments were performed in 4 male Estonian Blackhead sheep. Previously,  a RTP fixator for small animal fracture repair has been tested experimentally in rabbits and also on clinical  cases in dogs. To reduce complications such as screw loosening and rod displacement, modification to the  original fixator was made: one locking screw on each rod was added to fix the rod to the plate. In this study  the healing process of tibial osteotomies using the modified RTP fixator was evaluated in sheep. Sheep were  used as experimental animals because body weight and bone structure is similar to small animals. 

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