Figure 2

CT Scans of Three Patients with Severe Posterior Subluxation of the Glenohumeral Joint. Bilateral axial CT images of the glenohumeral joints from three OBPI patients with increasing severity of posterior subluxation of the affected humeral head are shown. The difference in the percentage of humeral head posterior subluxation in the affected shoulder (solid lines) compared to the normal shoulder (dashed lines) was measured as 3.9% (a), 15.7% (b), and 53% (c) using the indicated lines as described previously [14].