"Tightrope fixation"
"The buttons consist of a flat plate, usually with two or four holes where the suture is passed through, usually in a reciprocal fashion. The cortical button is deployed through a bone tunnel and tensioned at the opposite cortex of the bone to which the respective ligament, tendon or suture is attached to 1-6."
"Like other implants, they come in different configurations, designs, sizes and materials 3-6. They might be combined with other fixation devices like a tenodesis screw."
"Cortical buttons are radiodense; they should be seated flat, snug fit to the cortex. Their position should be confirmed fluoroscopically after placement."