What anatomical change is often associated with Walch Classification B2 conditions?

The classification of shoulder pathologies, specifically Walch Classification, categorizes glenoid deformities based on their anatomical features and the implications for treatment. In the case of Walch Classification B2, there is a significant alteration of the glenoid shape and function.

The formation of a paleo-glenoid and neo-glenoid is characteristic of B2 conditions. The paleo-glenoid refers to the original, eroded surface that remains intact to some degree, while the neo-glenoid describes the new bone formation that has developed in response to the altered loading conditions in the shoulder joint. This compensatory adaptation can lead to unique challenges in surgical intervention, as understanding these changes is crucial for effective implant positioning and overall joint stability.

This classification of changes emphasizes the importance of accurately assessing the glenoid surface's morphology before proceeding with Total Shoulder Arthroplasty. Understanding the formation of the paleo-glenoid and neo-glenoid helps guide surgical planning and may impact the choice of implant and the surgical technique utilized, ultimately influencing patient outcomes.