Radial inclination
Last revised by Henry Knipe on 14 Sep 2022
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Knipe H, Murphy A, et al. Radial inclination. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-66109
rID:
66109
Article created:
6 Feb 2019,
Yuranga Weerakkody ◉
Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Henry Knipe had the following disclosures:
- Radiopaedia Events Pty Ltd, Speaker fees (past)
- Integral Diagnostics, Shareholder (ongoing)
- Micro-X Ltd, Shareholder (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Henry Knipe's current disclosures
Revisions:
5 times, by
4 contributors -
see full revision history and disclosures
Systems:
Synonyms:
- Inclination angle of radius
- Radial tilt
- Radial inclination angle (RIA)
Radial inclination is the slope of the distal radial articular surface in relation to the radial shaft.
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
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
Incoming Links
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