Radial inclination
Citation, DOI, disclosures and article data
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosuresAt the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Craig Hacking's current disclosures- Inclination angle of radius
- Radial tilt
- Radial inclination angle (RIA)
Radial inclination or radial tilt is the slope of the distal radial articular surface in relation to the radial shaft in the coronal plane and is an important measurement in the evaluation of distal radius fractures and radial deformities.
Radial tilt should not be confused with volar tilt.
On this page:
Measurement
The radial inclination angle is made on the wrist AP projection as an angle between a line drawn between the radial styloid and the ulnar border of the distal radius with respect to a line perpendicular to the shaft 8.
Interpretation
<15°: relative indication for distal radius fracture operative management 7
normal: 21-25° (mean 22-24°) 5-8
>25°: feature of Madelung deformity 9
See also
References
- 1. Solgaard S. Angle of Inclination of the Articular Surface of the Distal Radius. Radiologe. 1984;24(7):346-8. - Pubmed
- 2. DiBenedetto M, Lubbers L, Coleman C. Relationship Between Radial Inclination Angle and Ulnar Deviation of the Fingers. J Hand Surg Am. 1991;16(1):36-9. doi:10.1016/s0363-5023(10)80009-7 - Pubmed
- 3. DiBenedetto M, Lubbers L, Ruff M, Nappi J, Coleman C. Quantification of Error in Measurement of Radial Inclination Angle and Radial-Carpal Distance. J Hand Surg Am. 1991;16(3):399-400. doi:10.1016/0363-5023(91)90004-u - Pubmed
- 4. O'Malley M, Rodner C, Ritting A et al. Radiographic Interpretation of Distal Radius Fractures: Visual Estimations Versus Digital Measuring Techniques. Hand (N Y). 2014;9(4):488-93. doi:10.1007/s11552-014-9666-2 - Pubmed
- 5. Mukesh MGH. Harisinghani, John W. Chen, Ralph Weissleder. Primer of Diagnostic Imaging. (2018) ISBN: 9780323357746 - Google Books
- 6. G. Guglielmi, C. van Kuijk, H.K. Genant. Fundamentals of Hand and Wrist Imaging. (2012) ISBN: 9783642569173 - Google Books
- 7. David J. Slutsky, A. Lee Osterman. Fractures and Injuries of the Distal Radius and Carpus. (2009) ISBN: 9781416040835 - Google Books
- 8. A. Mark Davies, Andrew J. Grainger, Steven J. James. Imaging of the Hand and Wrist. (2014) ISBN: 9783642111464 - Google Books
- 9. Hanson T, Murthy N, Shin A, Kakar S, Collins M. MRI Appearance of the Anomalous Volar Radiotriquetral Ligament in True Madelung Deformity. Skeletal Radiol. 2019;48(6):915-8. doi:10.1007/s00256-018-3094-2 - Pubmed
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