Release notes - Cat humeral shaft

The module on this anatomical area has been authored by Martin Unger (Germany), Matthew J Allen (UK), and Aldo Vezzoni (Italy) acted as editors. 

The cat humeral shaft module includes pages on:

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

More than 200 original illustrations accompany the step-by-step descriptions of the various fixation techniques and approaches.

The fixation techniques include a detailed description of locking plates, especially in the context of minimally invasive surgical approaches. The combination of periosteal preservation and the superior stability achievable with direct locking of the screw head into the plate makes this an excellent option for selected humeral shaft fractures.

This module is exclusively for AO VET members only.

Go to the module entry page.

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

12-A1 Incomplete fracture of the cat humeral diaphysis:

• Nonoperative treatment
• Bridging plate MIO
• Intramedullary pin

12-A2 Simple oblique fracture of the cat humeral diaphysis:

• Bridging plate
• Bridging plate and pin
• Cerclage wires and intramedullary pin
• Cerclage wires and neutralization plate
• Interlocking nail
• Lag screws and neutralization plate

12-A3 Simple transverse fracture of the cat humeral diaphysis:

• Bridging plate
• Bridging plate and pin
• Compression plate (lateral, medial, or cranial)
• Interlocking nail

12-B1 Cat humeral diaphyseal fracture with one reducible wedge:

• Bridging plate
• Bridging plate and pin
• Cerclage wires and neutralization plate (lateral, medial, or cranial)
• Interlocking nail
• Lag screws and neutralization plate (lateral, medial, or cranial)

12-B2 Cat humeral diaphyseal fracture with several reducible wedges:

• Bridging plate
• Bridging plate and pin
• Interlocking nail
• Lag screws and neutralization plate

12-B3 Cat humeral diaphyseal fracture with non-reducible wedge:

• Bridging plate
• Bridging plate and pin
• Double plating
• Interlocking nail

12-C1 Cat humeral diaphyseal fracture with complex reducible wedges:

• Bridging plate
• Bridging plate and pin
• Double plating
• Interlocking nail
• Lag screws and neutralization plate

12-C2 Complex segmental cat humeral diaphyseal fracture:

• Bridging plate
• Bridging plate and pin
• Double plating

12-C3 Humeral diaphyseal fractures with complex non-reducible wedges:

• Bridging plate
• Bridging plate and pin
• Double plating
• Interlocking nail

In addition, the material contains information about the following:

• Diagnosing each fracture type
• Indications for all treatments
• Lateral and dorsal recumbency positioning
• Lateral, medial, and minimally invasive approaches to the humeral shaft
• Basic techniques for lag screw fixation, plate preparation, and cerclage wires