Meralgia Paresthetica Caused by Melorheostosis Affecting the Ipsilateral Ilium

• DOI: 10.2106/jbjs.cc.20.00727
• Publication Date: 2021-04-02T19:00:09Z
• Authors: Hideaki Miyoshi; Takehiko Nishisho
• Keywords: Ilium; 03 medical and health sciences; 0302 clinical medicine; Femoral Neuropathy; Nerve Compression Syndromes; Melorheostosis; Humans; Female; Middle Aged; Femoral Nerve; 3. Good health

Case: A 51-year-old woman presented with a 2-month history of pain in the right thigh. Radiography and computed tomography of the pelvis showed cortical hyperostosis of the right ilium. She was diagnosed with meralgia paresthetica (MP) caused by melorheostosis involving the right ilium. After 6 weeks of conservative management, an operation was performed for the persisting pain. At the 1-year follow-up, no findings of recurrence were observed clinically and radiographically.

Conclusion: MP, caused by proximal irritation of the lateral femoral cutaneous nerve, can occur because of melorheostosis, which is a rare condition.