Distal radial traction radiographs: interobserver and intraobserver reliability compared with computed tomography

Area of Science:

• Orthopedic Surgery
• Radiology
• Medical Imaging

Background:

• Standard radiographs show poor distal radial fracture characterization, increasing computed tomography (CT) use.
• Traction radiographs have demonstrated improved interobserver reliability for fracture assessment and treatment planning.

Purpose of the Study:

• To compare traction radiographs and CT scans for distal radial fracture evaluation.
• To assess interobserver and intraobserver reliability in identifying fracture fragments.
• To compare treatment recommendations based on traction radiographs versus CT imaging.

Main Methods:

• Eleven observers evaluated 17 intra-articular distal radial fractures using blinded traction and CT images.
• Observers identified six specific fracture fragments and recommended treatment (nonoperative, ORIF, external fixation).
• Analyses focused on interobserver/intraobserver reliability, fragment identification accuracy, and treatment consistency.

Main Results:

• Interobserver reliability for both traction radiographs and CT images was fair to poor.
• Intraobserver variability in fragment identification was not statistically significant between imaging types.
• Treatment recommendations aligned with CT findings in 80.9% for ORIF and 67.9% for external fixation using traction radiographs.

Conclusions:

• Traction radiographs provide a suitable alternative to CT for distal radial fracture assessment.
• This imaging modality aids in accurate fracture characterization and treatment planning.
• Traction radiography may reduce reliance on CT for distal radius fracture evaluation.