The management of glenoid retroversion is a topic that has attracted a lot of attention in recent years.
The dysplastic glenoid is a malformation characterized by substantial (>25 degrees) retroversion of the glenoid articular surface. The posterior labrum of the glenoid is usually hypertrophic.
The publications on glenoid hyperplasia offer important information about glenoid retroversion.
Perhaps the most important recent publication, Early to midterm outcomes of anatomic shoulder arthroplasty performed on dysplastic glenoids evaluated the outcomes of Anatomic Total Shoulder Arthroplasties With standard (nonaugmented), glenoid components The 29 retroverted Dysplastic (Type C) Glenoids Comparing The same surgeon implanted 29 TSAs in glenoids that were minimally eroded, non-retroverted (type A1).
Type C morphology was defined as having a uniconcave glenoid with greater than 25° of retroversion and characteristic features, including hypoplasia of the posteroinferior glenoid or capular neck and reduced glenoid depth.
Preoperatively, there were no differences between patients with type A1 and type C glenoids in terms of sex or age, BMI or dominant shoulder side.
