A new distal radius fracture classification depending on the specific fragments through machine learning clustering...

Area of Science:

• Orthopedic Surgery
• Traumatology
• Radiology

Background:

• Intra-articular distal radius fractures are common injuries requiring precise classification and treatment.
• Existing classifications may not fully capture the complexity of fracture patterns affecting volar and dorsal aspects.
• Effective management strategies are crucial for optimal patient outcomes and functional recovery.

Purpose of the Study:

• To investigate intra-articular distal radius fractures.
• To develop a new classification system based on fracture patterns.
• To analyze and recommend corresponding treatment strategies for each fracture type.

Main Methods:

• Collected data from 294 cases of intra-articular distal radius fractures.
• Utilized K-means and hierarchical clustering for fracture pattern analysis.
• Evaluated demographic data, clinical outcomes (quick DASH, VAS, ROM, grip strength), radiographic parameters (volar tilt, radial inclination, ulnar variance), and complications at 12-month follow-up.

Main Results:

• A novel classification system categorized fractures into volar and dorsal affected groups, with subtypes I, II, and III based on comminution.
• Volar plate fixation was the standard treatment; combined plate fixation was used for comminuted dorsal defects.
• No significant differences in radiographic parameters, functional outcomes, or complications were observed between volar and dorsal groups, except for reduced flexion/extension in dorsal type 3.2 fractures.

Conclusions:

• A new classification for intra-articular distal radius fractures based on volar/dorsal involvement is proposed.
• Volar plate fixation is an effective treatment for these fractures.
• Combined plate fixation is a viable alternative for comminuted dorsal side fractures.