What is the key factor that affects glenoid implant failure according to research?

The position of the humeral component is a crucial factor that affects glenoid implant failure. Research indicates that optimal positioning of the humeral component can significantly impact the biomechanics of the shoulder joint and, consequently, the longevity of the glenoid implant.

When the humeral component is not positioned correctly, it can lead to increased stress on the glenoid, contributing to early wear and failure of the implant. This can occur due to improper alignment, angulation, or rotation, which can compromise the joint mechanics and lead to a mismatch between the humeral and glenoid surfaces.

Understanding the importance of correct humeral component positioning helps surgeons ensure that the prosthesis functions effectively within the natural kinematics of the shoulder, thereby reducing the risk of implant failure and increasing the likelihood of a successful surgical outcome.