Wednesday, 28 December 2011

Piriformis Syndrome

Cause
-when the sciatic nerve is compressed or otherwise irritated by the piriformis muscle 

Symptoms 
-pain, tingling and numbness 
-site:  along the path of the sciatic nerve : in buttocks, lower thigh and into the leg (note: no back pain)

Exam
- gait: patient prefer to walk in external rotation of hip
(internal rotation of hip will further compress sciatic nerve)

Treatments
Steroid injection into piriformis muscle

Anatomy of Piriformis muscles
- origin: sacrum
- insertion: greater trochater
- nerve: nerve to piriformis (L5, S1, S2)


Posterior view

2 comments:

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