Posterior shoulder instability [Posterior shoulder instability_01] Reverse Bankart lesion - 1, shoulder MRI, posterior Bankart [Posterior shoulder instability_02] Reverse Bankart lesion - 2, shoulder MRI, posterior Bankart [Posterior shoulder instability_03] POLPSA Lesion,posterior labrocapsular periosteal sleeve avulsion [Posterior shoulder instability_04] Kim's lesion - 1, glenoid retroversion..