A novel computed tomography-based three-column MLP classification of intertrochanteric fracture

Area of Science:

• Orthopedic surgery
• Radiology
• Biomedical engineering

Background:

• Intertrochanteric fractures are common in elderly patients.
• Current classification systems may not fully capture fracture complexity.
• Accurate classification is crucial for effective treatment planning.

Purpose of the Study:

• To introduce a novel three-dimensional computed tomography (3DCT)-based three-column classification system (MLP classification) for intertrochanteric fractures.
• To evaluate the reproducibility and reliability of this new classification system.

Main Methods:

• A total of 258 patients with intertrochanteric fractures were analyzed.
• Fractures were assessed using the novel 3DCT-based MLP classification system.
• Intra- and inter-observer reliability was tested using kappa variance.

Main Results:

• The intertrochanteric region was divided into medial, lateral, and posterior columns.
• Fractures were classified using the M0/1/2L0/1/2/3P0/1/2/3 scheme.
• High intra-observer (0.91, 0.89) and inter-observer (0.82) kappa values indicated almost perfect reliability.

Conclusions:

• The 3DCT-based MLP classification system is a comprehensive and reproducible method for intertrochanteric fractures.
• It considers biomechanical characteristics and injury mechanisms.
• This system can improve treatment strategies and the use of internal fixation devices.