Piriformis Syndrome: Difference between revisions
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== Definition/Description == | == Definition/Description == | ||
Piriformis syndrome (PS) is a painful musculoskeletal condition, characterized by a constellation of symptoms that include buttock or hip pain. [4,7,9] In several articles, piriformis syndrome is defined as a peripheral neuritis of the branches of the sciatic nerve caused by an abnormal condition of the piriformis muscle (PM), such as an injured or irritated muscle.[1,9] There are more women diagnosed with Piriformis syndrome than men, the female–to–male ratio is 6:1. This ratio can be explained by the wider quadriceps femoris muscle angle in the os coxae of women. [2,3,9] There are two types of piriformis syndrome. The first type is called “Primary piriformis syndrome” : it is caused by an anatomic variation, like a split piriformis muscle, a split sciatic nerve or an anomalous sciatic nerve path. The second type is called “Secondary piriformis syndrome” : it is the result of a precipitating cause, such as a macrotrauma, microtraumata, ischemic mass effect and local ischemia.[3,9]<br> | |||
== Clinically Relevant Anatomy == | == Clinically Relevant Anatomy == | ||
Revision as of 14:42, 26 December 2010
Original Editors - Marlies Verbruggen
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Definition/Description[edit | edit source]
Piriformis syndrome (PS) is a painful musculoskeletal condition, characterized by a constellation of symptoms that include buttock or hip pain. [4,7,9] In several articles, piriformis syndrome is defined as a peripheral neuritis of the branches of the sciatic nerve caused by an abnormal condition of the piriformis muscle (PM), such as an injured or irritated muscle.[1,9] There are more women diagnosed with Piriformis syndrome than men, the female–to–male ratio is 6:1. This ratio can be explained by the wider quadriceps femoris muscle angle in the os coxae of women. [2,3,9] There are two types of piriformis syndrome. The first type is called “Primary piriformis syndrome” : it is caused by an anatomic variation, like a split piriformis muscle, a split sciatic nerve or an anomalous sciatic nerve path. The second type is called “Secondary piriformis syndrome” : it is the result of a precipitating cause, such as a macrotrauma, microtraumata, ischemic mass effect and local ischemia.[3,9]
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