Previous research has underestimated the incidence of posterior glenohumeral instability (PGI). This systematic review aimed to determine the best evidence-based conservative treatment for patients with PGI.

Patients with PGI often showed an increased glenohumeral retroversion. Especially individuals who are engaged in activities that bring the shoulder repetitively in a position of flexion, adduction and internal rotation and individuals with a generalised ligamentous laxity are at a high risk for the development of PGI.

Patients with PGI often complain about an aching pain and weakness along the posterior glenohumeral joint line or a tightening sensation felt around the posterior cuff. Frequently, there can be a clicking sensation around the posterior joint line.