| Ossification of the ligamentum flavum as a result of fluorosis causing myelopathy: report of two cases. | |
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MedLine Citation:
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PMID: 15730589 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE AND IMPORTANCE: Ossification of the ligamentum flavum (OLF) is increasingly being recognized as a cause of myeloradiculopathy. However, the cause of such OLF has been identified only occasionally. The purpose of this case report is to highlight one more cause of OLF causing myelopathy. CLINICAL PRESENTATION: Two middle-aged men residing in an area endemic for fluorosis presented with the insidious onset of myelopathy. Clinical examination revealed evidence of thoracic cord compression in both patients. Plain x-rays revealed markedly increased bone density characteristic of fluorosis. Magnetic resonance imaging revealed OLF in the lower thoracic region causing cord compression (at one level in the first patient and at three consecutive levels in the second patient). Plain x-rays of the forearm revealed ossification of the interosseous membrane, which is characteristic of fluorosis. INTERVENTION: Both patients underwent decompressive laminectomy with removal of the OLF. The laminae and ossified yellow ligaments formed one mass of bone, which was removed with rongeurs and drills. After surgery, the first patient demonstrated improvement in motor power, whereas the second patient did not demonstrate any change in neurological status. CONCLUSION: Fluorosis should be entertained in the differential diagnosis of OLF, especially in patients from endemic areas. The magnetic resonance imaging appearance of the spine in such cases is characteristic. In properly selected cases of fluorotic myelopathy, surgery is indicated. However, the prognosis is guarded, and long-term follow-up of these patients is necessary given the nature of the underlying disease. |
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Authors:
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Natarajan Muthukumar |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Neurosurgery Volume: 56 ISSN: 1524-4040 ISO Abbreviation: Neurosurgery Publication Date: 2005 Mar |
Date Detail:
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Created Date: 2005-02-25 Completed Date: 2005-05-16 Revised Date: 2005-06-07 |
Medline Journal Info:
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Nlm Unique ID: 7802914 Medline TA: Neurosurgery Country: United States |
Other Details:
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Languages: eng Pagination: E622; discussion E622 Citation Subset: IM |
Affiliation:
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Department of Neurosurgery, Madurai Medical College, Madurai, Tamil Nadu, India. prasan86@eth.net |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Decompression, Surgical Diagnosis, Differential Fluorides / adverse effects* Forearm / pathology Humans Laminectomy Ligamentum Flavum / pathology* Magnetic Resonance Imaging Male Middle Aged Movement Disorders / etiology Ossification, Heterotopic / etiology, pathology* Spinal Cord Diseases / etiology*, pathology |
| Chemical | |
Reg. No./Substance:
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0/Fluorides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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