What muscles are innervated by the sciatic nerve?

The sciatic nerve also innervates muscles. In particular: Via the tibial nerve, the muscles in the posterior compartment of the leg and sole of the foot (plantar aspect). Via the common peroneal nerve (also called the common fibular nerve), the muscles in the anterior and lateral compartments of the leg. read more

The sciatic nerve also indirectly innervates several other muscles, via its two terminal branches: Tibial nerve – the muscles of the posterior leg (calf muscles), and some of the intrinsic muscles of the foot. read more

The sciatic nerve (/ s aɪ ˈ æ t ɪ k /; also called ischiadic nerve, ischiatic nerve) is a large nerve in humans and animals. It begins in the lower back and runs through the buttock and down the lower limb. read more

Could be: Hard to say without more info and physical exam, but it could be irritation of the sciatic nerve, either from pinching in your back or at the piriformis muscle. It could also be a muscle spasm, sacroiliac pain, or referred pain from a couple other places in your back. read more