Figure 1From: An MRI study on the relations between muscle atrophy, shoulder function and glenohumeral deformity in shoulders of children with obstetric brachial plexus injury FISP acquisition MRI in axial plane showing affected and normal contralateral shoulder. In the affected left [L] shoulder there is a biconcave glenoid form (type 3) and humeral head subluxation. The contralateral [R] shoulder is normal. Measured areas of infraspinatus, subscapularis and deltoid are outlined.Back to article page