Antiglide plate fixation

Last revised by Dr Daniel J Bell on 09 Nov 2021

Antiglide plate fixation is an open reduction internal fixation (ORIF) technique used in oblique diaphyseal fractures of the distal fibular. 

They are used to counteract vertical shear forces during axial loading in the diaphyseal bone and to prevent sliding/shortening of the fracture fragments.

One of the main indications is the fixation of oblique lateral malleolar fractures 1.

The antiglide plate fixation technique comprises the following 2:

  • intra-operative contouring or bending one end towards the oblique fracture plane
  • placement of the plate facing the oblique part of the fracture plane (commonly posterolateral or posterior in lateral malleolar fractures)
  • screw fixation of proximal screws and lag screws

Complications of antiglide plate fixation of the lateral malleolus include the following 2:

Plate position and fracture healing can be assessed with Mortise and lateral views of the ankle.

The radiological report should include the description of the following features 1:

Open reduction internal fixation of oblique lateral malleolar (Weber type B) fracture with an antiglide plate fixation from the posterolateral aspect and additional fracture compression with lag screws inserted through the plate offer increased torsional stability 3. It can be combined with screw fixation of tibial or fibular avulsion fractures or syndesmotic screw fixation.

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