Citation, DOI, disclosures and article data
Citation:
Knipe H, Hacking C, Luijkx T, Glenoid version angle. Reference article, Radiopaedia.org (Accessed on 18 Mar 2025) https://doi.org/10.53347/rID-96764
Disclosures:
At 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
The glenoid version angle can be determined by either the Friedman method or the scapular blade method. Glenoid version is important in the preoperative assessment for shoulder arthroplasty and can also be useful in the diagnosis of glenoid dysplasia and causes of recurrent glenohumeral instability.
Measurement
Glenoid version is measured on axial CT or MR scans. Numerous methods have been proposed 5. Friedman method has been shown to have better inter-reader reliability and is more user-friendly as scapular and glenoid morphology is less important 1,3.
Friedman / scapular line method
A line perpendicular to the Friedman/scapular line is drawn at the level of the glenoid representing neutral glenoid version. Another line is drawn between the anterior and posterior margins of the glenoid and the angle between this line and the neutral glenoid version can be calculated 1,2,5.
Scapular body/blade method
This method is the same as the Friedman method but instead of the Friedman/scapular line, the long axis of the scapular blade is used (which, depending on morphology, may or may not intersect the central glenoid fossa) 3,5.
Interpretation
The Friedman and scapular body/blade methods are not interchangeable with significant differences in the glenoid version angle calculated in the same shoulder 3.
Different values of normal have been published:
-
1. Siebert M, Chalian M, Sharifi A et al. Correction To: Qualitative and Quantitative Analysis of Glenoid Bone Stock and Glenoid Version: Inter-Reader Analysis and Correlation with Rotator Cuff Tendinopathy and Atrophy in Patients with Shoulder Osteoarthritis. Skeletal Radiol. 2020;49(6):995-1003. doi:10.1007/s00256-020-03386-z - Pubmed
-
2. Sharifi A, Siebert M, Chhabra A. How to Measure Glenoid Bone Stock and Version and Why It Is Important: A Practical Guide. Radiographics. 2020;40(6):1671-83. doi:10.1148/rg.2020200008 - Pubmed
-
3. Rouleau D, Kidder J, Pons-Villanueva J, Dynamidis S, Defranco M, Walch G. Glenoid Version: How to Measure It? Validity of Different Methods in Two-Dimensional Computed Tomography Scans. J Shoulder Elbow Surg. 2010;19(8):1230-7. doi:10.1016/j.jse.2010.01.027 - Pubmed
-
4. Eichinger J, Galvin J, Grassbaugh J, Parada S, Li X. Glenoid Dysplasia. J Bone Joint Surg. 2016;98(11):958-68. doi:10.2106/jbjs.15.00916 - Pubmed
-
5. Maister N, Hely A, Twycross L, Gill S, Page R. A New Method for Measuring Glenoid Version on Standard Magnetic Resonance Imaging. Journal of Shoulder and Elbow Arthroplasty. 2020;4:247154922092682. doi:10.1177/2471549220926826 - Pubmed
Promoted articles (advertising)
Unable to process the form. Check for errors and try again.