2017 ISAKOS Biennial Congress ePoster #136

 

Relationship Between Anterior-Inferior Glenohumeral Instability and Glenoid Version

Meiming Xie, PhD, Chongqing, Chongqing CHINA
Kanglai Tang, MD, PhD, Prof., Chongqing, Chongqing CHINA

Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University / COA National Training Center for Foot and Ankle Surgeon, Chongqing, Chongqing, CHINA

FDA Status Cleared

Summary

The glenoid version angle may be directly related with the anterior—inferior glenohumeral instability.The glenoid version angle measurement would be helpful to stability evaluation,surgery choice and prognosis.

ePosters will be available shortly before Congress

Abstract

Abstract:Objective To assess the relationship between anterior-inferior glenohumeral instability and glenoid version.Methods Both shoulders in 24 patients with unilateral anterior-inferior glenohumeral instability were scanned with muhiplanar spiral CT scanner(MSCT).The scapula and the humerus were reconstructed by the volume rendering technique and muhiplanar reformation in 4 slices on axial plane from glenoid top to its bottom.The scapular glenoid version angles of 24 patients were measured bilaterally in 4 levels,and compared bilaterally by statistic analysis.Results From the top to the bottom,the scapular glenoid version angle in the side with anterior-inferior glenohumeral instability was respectively(-15.24 4-10.18)°,(-8.22 4-8.47)°,(-2.88±4.56)°and(-2.49 4-6.43)°,while the angle in the healthy side was respectively(-15.07 4-12.11) °,(-10.63 4-7.25) °,(-6.04 4-3.61) °and(-5.26±3.02)°.Only the difference at the 4 plane was significant between the healthy side and the affected side(P<0.05).Conclusion The glenoid version angle may be directly related with the anterior—inferior glenohumeral instability.The glenoid version angle measurement would be helpful to stability evaluation,surgery choice and prognosis.
Key words glenohumeral joint;instability;scapular glenoid version angle