"The inferior gluteal nerve is formed by the L5-S2 nerve roots supplying motor innervation to the gluteus maximus muscle. It exits the pelvis through the greater sciatic foramen below the piriformis muscle and turns backwards splitting into branches entering the gluteus maximus 2,3."
"The diagnosis might be made by a combination of clinical symptoms and abnormal electrodiagnostic testing. Isolated denervation changes of the gluteus maximus on imaging can further support the diagnosis. Lumbosacral radiculopathy, plexopathy and sciatic neuropathy should be ruled out 1."