Release notes - Cat proximal tibia

1. First edition

Publication of module (March 20, 2026)

The module on this anatomical area has been authored by Kenneth Johnson (Australia). Amy Kapatkin (USA) acted as editor.

The cat proximal tibia module includes pages on:

  • Fracture diagnosis
  • Approaches to the proximal tibia
  • Positioning
  • Complications
  • Wide selection of fracture fixation techniques tailored to the specific fracture types

Around 300 original illustrations accompany the step-by-step descriptions of the various fixation techniques and approaches.

To help identify the fractures, x-rays of most fracture types have been included in the diagnosis section.

This module is exclusively for AO VET members only.

Go to the module entry page.

9-year-old Domestic Shorthair cat with a grade 1 open A3 tibiofibular fracture of the left pelvic limb

Table of contents

The cat proximal tibia material includes a detailed description of the following fracture types and fixation methods.

41-A1 Avulsion fracture:

  • Nonoperative treatment
  • K-wire fixation
  • K-wire with tension band fixation

41-A2 Simple extraarticular fracture:

  • Nonoperative treatment
  • Bone plate fixation
  • K-wire fixation

41-A3 Multifragmentary extraarticular fracture:

  • Bridging plate fixation

41-B1 Lateral simple partial articular fracture:

  • Lag screw and K-wire fixation
  • Lag screw and buttress plate fixation

41-B2 Medial simple partial articular fracture:

  • Lag screw and K-wire fixation
  • Lag screw and buttress plate fixation

41-B3 Multifragmentary partial articular unicondylar fracture:

  • Buttress plate and position screw or K-wire fixation

41-C1 Simple articular, simple metaphyseal fracture:

  • Lag screw and neutralization plate fixation

41-C2 Simple articular, multifragmentary metaphyseal fracture:

  • Salvage procedure

41-C3 Multifragmentary articular fracture:

  • Salvage procedure

In addition, the material contains information about the following:

  • Diagnosing each fracture type
  • Indications for all treatments
  • Dorsal recumbency positioning
  • Craniomedial, craniolateral, and cranial approaches to the proximal tibia
  • Basic techniques for lag screw fixation, plate preparation, and K-wire fixation
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