Piriformis muscle injections are commonly used to determine what is causing buttock and sciatica type pain.A piriformis steroid injection is an injection of a long lasting steroid into the piriformis muscle of your buttock. Your sciatic nerve goes down the back of your leg and passes through or under this muscle.
The medication injected will help reduce the inflammation and /or swelling around the nerves that pass near or through the piriformis muscle. This in turn may reduce your pain, numbness, tingling or other symptoms that may contribute to nerve inflammation, irritation or swelling.
If the stretching program fails to correct the problem, surgery to lengthen the tendon is an option. Before considering surgery, it is necessary to confirm the diagnosis as best as possible, so the information from the injection is important.
Piriformis muscle injections are done with the help of fluoroscopic guidance. The fluoroscope is an x-ray machine that allows the doctor to actually see an x-ray image while doing the procedure. This allows the doctor to watch where the needle goes as it is inserted. This makes the injection much safer and much more accurate.