Piriformis syndrome
Irritation of the sciatic nerve caused by compression of the nerve within the buttock by the piriformis muscle. Typically, the pain of the piriformis syndrome is increased by contraction of the piriformis muscle, prolonged sitting, or direct pressure applied to the muscle. Buttock pain is common. The piriformis syndrome is one of the causes of sciatica. The piriformis syndrome can cause difficulty walking due to pain in the buttock and lower extremity. The piriformis muscle begins at the front surface of the sacrum (the V-shaped bone between the buttocks at the base of the spine) and passes through the greater sciatic notch to attach to the top of the thigh bone (femur) at its bony prominence called the greater trochanter. The gluteus maximus muscle covers over the piriformis muscle in the buttocks. The doctor can often detect tenderness of the piriformis muscle during a rectal examination. The piriformis syndrome is treated with rest and measures to reduce inflammation of the piriformis muscle and its tendon. Treatments include piriformis stretching exercises, physical therapy, anti-inflammatory medications, and pain medications. With persistent symptoms, further treatment can include local injection of anesthetic and cortisone medication. Rarely, for severe cases, surgery is performed to relieve the pressure irritating the sciatic nerve. During surgical operations, the piriformis muscle is either thinned, elongated, divided, or removed.

* * *

levator ani s.

Medical dictionary. 2011.

Look at other dictionaries:

  • Piriformis syndrome — Infobox Disease Name = PAGENAME Caption = Nerves of the right lower extremity Posterior view. DiseasesDB = ICD10 = ICD9 = ICDO = OMIM = MedlinePlus = eMedicineSubj = pmr eMedicineTopic = 106 MeshID = Piriformis syndrome is a neuromuscular… …   Wikipedia

  • Piriformis muscle — (Posterior view of pelvis) The piriformis and nearby muscles …   Wikipedia

  • Piriformis muscle — A muscle that begins at the front surface of the sacrum (the V shaped bone between the buttocks at the base of the spine) and passes through the greater sciatic notch to attach to the top of the thigh bone (femur) at its bony prominence called… …   Medical dictionary

  • Syndrome, piriformis — Irritation of the sciatic nerve caused by compression of the nerve within the buttock by the piriformis muscle. Typically, the pain of the piriformis syndrome is increased by contraction of the piriformis muscle, prolonged sitting, or direct… …   Medical dictionary

  • Muscle, piriformis — A muscle that begins at the front surface of the sacrum (the V shaped bone between the buttocks at the base of the spine) and passes through the greater sciatic notch to attach to the top of the thigh bone (femur) at its bony prominence called… …   Medical dictionary

  • Nerve compression syndrome — Trapped nerve redirects here. For other uses, see Trapped nerve (disambiguation). Nerve compression syndrome Classification and external resources ICD 9 355.9 MeSH …   Wikipedia

  • Carpal tunnel syndrome — Classification and external resources Transverse section at the wrist. The median nerve is colored yellow. The carpal tunnel consists of the bones and flexor retinaculum. ICD 1 …   Wikipedia

  • Guillain–Barré syndrome — Guillain Barré syndrome Classification and external resources ICD 10 G61.0 ICD 9 357.0 …   Wikipedia

  • Complex regional pain syndrome — Complex regional pain syndrome/Reflex Sympathetic Dystrophy (CRPS/RSD) Classification and external resources ICD 10 M89.0, G56.4 ICD 9 …   Wikipedia

  • Thoracic outlet syndrome — Classification and external resources The right brachial plexus, viewed from in front. In thoracic outlet syndrome there is compressio …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”