Accuracy of distal radius positioning using an anatomical plate

Area of Science:

• Orthopedic Surgery
• Biomechanical Engineering
• Radiology

Background:

• Anatomical plates are increasingly used for open reduction and internal fixation of distal radius fractures.
• Improving the accuracy and reproducibility of distal radius positioning is a key goal in fracture management.

Purpose of the Study:

• To evaluate the accuracy and reproducibility of distal radius positioning using different anatomical plates.
• To compare the positioning errors with natural bilateral radius differences in healthy individuals.

Main Methods:

• Simulated distal radius fractures and corrections on plastic bone models.
• Two types of anatomical plates were used by two surgeons following manufacturer instructions.
• Three-dimensional imaging assessed residual positioning errors of the distal segment.

Main Results:

• Positioning errors using anatomical plates often did not align with natural bilateral radius differences.
• Considerable residual errors in distal radius positioning were observed in individual patients.
• Differences in volar distal radius plate shapes among manufacturers may influence performance.

Conclusions:

• While anatomical plates aim to improve fixation, their use can result in significant individual positioning errors.
• The specific design of anatomical plates can affect their performance in correcting distal radius fractures.
• Surgeons should consider plate design variations when selecting implants for optimal patient outcomes.