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KMID : 0361420150390061042
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Journal of Korean Academy of Rehabilitation Medicine
2015 Volume.39 No. 6 p.1042 ~ p.1046
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Leg Weakness Caused by Bilateral Piriformis Syndrome: A Case Report
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Moon Hee-Bong
Nam Ki-Yeun
Kwon Bum-Sun
Park Jin-Woo
Ryu Gi-Hyeong
Lee Ho-Jun
Kim Chang-Jae
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Abstract
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Piriformis syndrome (PS) is an uncommon neuromuscular disorder caused by the piriformis muscle (PM) compressing the sciatic nerve (SN). The main symptom of PS is sciatica, which worsens with certain triggering conditions. Because the pathophysiology is poorly understood, there are no definite diagnostic and therapeutic choices for PS. This case report presents a young woman who mainly complained of bilateral leg weakness. Electromyography revealed bilateral sciatic neuropathy and magnetic resonance imaging confirmed structural lesions causing entrapment of the bilateral SNs. After a laborious diagnosis of bilateral PS, she underwent PM releasing surgery. Few PS cases present with bilateral symptoms and leg weakness. Therefore, in such cases, a high level of suspicion is necessary for accurate and prompt diagnosis and treatment.
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KEYWORD
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Piriformis muscle syndrome, Bilateral, Muscle weakness
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