Prolonged lithotomy positioning can result in neuropathies of the legs.The most frequently injured nerves are the obturator,sciatic,femoral,and _____________ nerves,which can result in injury from ______________.

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The common peroneal nerve branches from the sciatic nerve behind the knee and becomes superficial as it wraps around the lateral head of the fibula.At this level,it is vulnerable to direct compression by stirrup bars.This risk may be increased in extremely thin patients who have minimal overlying tissue in this area.It is important to ensure that the lateral head of the fibula does not rest against stirrup bars or any other rigid surface.Compressive leg wraps (i.e.,intermittent pneumatic compressive devices,graduated compression stockings)also can put pressure on this nerve if the wrapping is too tight in this area.

Prolonged Lithotomy Positioning Can Result in Neuropathies of the Legs