The length of time spent in an abnormal position will increase the likelihood of problems and possible litigation.

The eyes and optic nerves are at risk from direct pressure from surgical instruments, elbows resting over the face and when in the prone position.

The brachial plexus and its terminal braches are at risk from stretching or external pressure particularly in the lateral position.

The lithotomy position can damage not only the saphenous and common peroneal nerves (pressure from the poles) but also the femoral and obturator nerves.

Neuronal injury is usually temporary and function is returns with time, but occasionally damage is permanent.