The glenoid center line
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Updated: Aug 16, 2026

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
Published on: March 12, 2021
James Bicos1, Augustus Mazzocca, Anthony A Romeo
1Department of Orthopedic Surgery, Rush-Presbyterian-St Luke's Medical Center, Chicago, IL, USA.
Abstract:
This study sought to define a point on the anterior glenoid surface to serve as a marker for glenoid orientation and to present the concept of a glenoacromial version angle. Twenty fresh-frozen cadaver scapulas were examined. A line perpendicular to the glenoid surface exited the anterior scapular cortex in all specimens at an average distance of 29.3 +/- 3.9 mm. The average glenoacromial version angle was 60 degrees +/- 110 degrees. These numbers may allow better intraoperative assessment of glenoid version.
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