What is the anatomical average for glenoid inclination?

The anatomical average for glenoid inclination is considered to be approximately 132.5 degrees. This measurement refers to the angle formed between a line that is perpendicular to the glenoid face and a reference plane, typically the horizontal plane. In the context of shoulder anatomy and total shoulder arthroplasty, understanding the glenoid inclination is crucial as it plays a significant role in the mechanics of the shoulder joint.

Anatomical variations can significantly affect surgical planning and implant positioning during procedures such as total shoulder arthroplasty. An inclination angle that deviates from the average can result in complications, such as improper joint mechanics, instability, or premature wear of the artificial components. Recognizing the importance of this average angle allows surgeons to make informed decisions when selecting the appropriate implant and aligning it correctly during surgery.

This understanding is critical in achieving a successful outcome in total shoulder arthroplasty, emphasizing why the value of 132.5 degrees is widely referenced in both clinical practice and anatomy studies.