What amount of torque is typically applied to halo pins?

The typical amount of torque applied to halo pins is 8 inch-pounds. This precision in torque is essential for ensuring the stability and effectiveness of the halo device used in cranial immobilization. Applying the correct torque helps to secure the pins without causing excess pressure or injury to the skull, which is critical given the delicate nature of cranial anatomy.

Using 8 inch-pounds allows for adequate penetration of the pins into the outer table of the skull, creating a stable anchor point without risking complications such as pin loosening or soft tissue damage. The established standard of 8 inch-pounds has been derived from clinical practice and research, ensuring safety outcomes for patients who require such devices for immobilization following various neurological procedures or traumas.