I shattered my hip and damaged my sciatic, now diagnosed with rsd and arthritis. i can only bend my big toe could this be something else?

Maybe: The sciatic nerve is the main motor nerve into your leg. Damage to this nerve could affect function at your hip, knee, ankle, foot and toes. I am assuming you had a nerve test done of the leg to assess function of the nerve. If not, very important this is done. Work with a good physical medicine and rehabilitation specialist important. Very difficult condition to treat. I wish you the best of luck.