Imaging Modalities to Assess Fracture Healing

Area of Science:

• Orthopedics
• Radiology
• Biomedical Engineering

Background:

• Fracture repair assessment relies on imaging, but current methods have limitations.
• Semiquantitative scoring lacks reliability for structural bone healing.
• Need for advanced imaging for precise fracture healing evaluation.

Purpose of the Study:

• Review current and emerging imaging modalities for fracture repair.
• Focus on clinical and translational applications, implementation, and future research.
• Highlight advancements in quantitative bone healing assessment.

Main Methods:

• Review of literature on various imaging techniques for fracture healing.
• Discussion of computed tomography (CT), dual-energy X-ray absorptiometry (DXA), and radiostereometric analysis (RSA).
• Exploration of magnetic resonance (MR) and ultrasound imaging potentials.

Main Results:

• Traditional radiographic scoring has limited reliability.
• CT allows quantitative callus morphometry and mechanical assessment.
• DXA and RSA offer quantitative data but are technically challenging.
• MR and ultrasound require further development for mineralized structure quantification.

Conclusions:

• Emerging quantitative imaging methods can improve fracture repair assessment.
• These methods may replace binary union/nonunion classifications.
• Potential for earlier nonunion detection and enhanced clinical care.