Can apinched nerve in lumbar4 cause foot drop? if yes, what can be done?

Foot drop: Foot drop is usually caused by pressure on Lumbar Nerve 5, but 5 percent of people have a shift up or down in which level of the spine affects which nerve. Pressure on the peroneal nerve usually near the knee can cause this as well. If not properly diagnosed or treated the weakness can be permanent and require bracing. If it is from the spine therapy and injections can often work without surgery