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KMID : 0363119950080010149
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Korean Journal of Pain
1995 Volume.8 No. 1 p.149 ~ p.151
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A Case Report of the Piriformis Syndrome Treated by Caudal Steroid and Local Anesthetic
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Abstract
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Piriformis syndrome is a syndrome of low back and leg radiating pain thought to be due to a chronic contracture of the piriformis muscle that causes iffitation of the sciatic nerve.
The piriformis muscle is a flat pyramidal muscle, an external rotator and abductor of the hip, originating from the front of the sacrum and inner aspect of the sacroiliac joint, then passes laterally out of the sciatic notch to attach posteriorly
to the
greater trochanter of the femur, the sciatic nerve passes between the two bellies of the muscle.
Mechanical irritation of the sciatic nerve by an inflammatory reaction of the piriformis muscle and its fascia at this pelvic level causes pain to radiate in the dermatomal regions of the nerve roots similar to that disk entrapmetn.
diagnosis of piriformis syndrome is made primary on the basis of history and clinical examination. The incidence is considerably higher in womehn, with the reported ratio fo women to men of 6:1. These patients frequently present with associated
symptoms
of pelvic apin and/or dyspareunia. symptoms are ususally unilateral but occasionally be bilateral.
We had a 42 year-old woman patient with low back and left leg radiating pain and dyspareunia treated by caudal steroid and local anesthetic.
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