What influence does the eccentric design of TSA glenoses have on humeral head coverage?

The eccentric design of total shoulder arthroplasty (TSA) glenoses is specifically engineered to enhance the coverage of the humeral head during the procedure. This design allows for an optimized fit of the glenoid component against the humeral head, promoting better joint stability and kinematics.

By creating a more anatomically compatible interface, the eccentricity improves the alignment and positioning of the humeral head within the glenoid cavity. This results in increased coverage, which can help to distribute forces more evenly across the joint during movement. Consequently, this design aims to preserve the integrity of surrounding bone and soft tissues while minimizing the risk of misalignment, dislocation, or wear over time.

As a result, the eccentric design plays a pivotal role in enhancing humeral head coverage, which is crucial for the overall success and longevity of the shoulder implant.