Glenohumeral Joint Contract Patterns in Osteoarthritic Glenoids

"Healthy control will undergo a stereo radiographic EOS exam with their arm in various positions.~1. Relaxed standing (0 degree of abduction)~2. 45 degree of abduction in the coronal plane~3. 90 degree of abduction in the coronal plane~4. 120 degree of abduction in the coronal plane~5. 45 degree anterior flexion in the sagittal plane~6. 90 degree anterior flexion in the sagittal plane~7. 120 degree of anterior flexion in the sagittal plane~8. 45 degree extension in the sagittal plane"