.A PSI guide helps execute the preoperative plan.
If the surgeon choses to check the position of the guide using the floor as a reference to check inclination, an error may occur because of the positioning of the scapula.
This may happen if an assist arm is used
The elderly patient
Which is the best option for glenoid baseplate fixation in the elderly?
Here are some variables to consider:
1. A 6.5 mm screw is often used. Will this gain sufficient purchase in the elderly?
2. A central post has the potential of ingrowth but has a larger diameter of a 6.5 mm screw.
3. A revision of a post will need at least a 9.5 mm screw or a completely different hole position
4. The dimensions of the glenoid vault will determine post perforation which may not be desirable
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