How many peripheral holes are drilled in the keeled TSA glenoid Poly?

In the context of a keeled Total Shoulder Arthroplasty (TSA) glenoid polyethylene component, the design typically incorporates two peripheral holes drilled into the polyethylene. These holes are specifically sized at 6mm each and are used to enhance the fixation of the glenoid component to the bone.

The rationale behind having two holes is to improve stability and ensure that the glenoid baseplate is securely anchored to the glenoid bone. This configuration facilitates optimal load distribution and helps to prevent loosening of the component over time. Additionally, this design allows for the use of screws to achieve a more robust fixation, enhancing the overall longevity and effectiveness of the implant.

Alternative configurations, such as three holes or variations in size, are not standard for this specific design, which firmly focuses on the dual 6mm hole setup to establish a secure connection between the glenoid component and the underlying bone structure.