Abstract
Fluorosis is thought to be rare in Pakistan but endemic in various parts of the world, especially in India and China. In Pakistan only a few cases have been reported from Thar, Sibbi and Manga Mandi, with probability of fluorosis on MRI findings, supported by high drinking waterfluoride content. Neurological manifestations of skeletal fluorosis may vary from radiculo-myelopathy to neuropathy. A case of 26 years old female from Thul, Sindh, who presented with paraplegia, is reported here. Her MRI showed extensive classical degenerative changes throughout the spine, consistent with fluorosis, leading to cord compression at multiple levels. No such case with confirmed fluorosis has been previously reported from Pakistan.
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[Spinal cord compression in bone fluorosis. Apropos of 4 cases].
The authors report four cases of spinal cord compression (three at cervical level and one at dorsal level) due to vertebral osteosclerosis secondary to chronic fluoride intoxication. Roentgenograms showed typical diffuse densification of vertebral bodies, calcifications of bony insertions of many ligaments, discs and interosseous membranes. Urinary fluoride was markedly
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Intraosseous schwannoma of the cervical spine associated with skeletal fluorosis
Intraosseous Schwannoma of the cervical spine is very rare. Its association with skeletal fluorosis is also extremely rare. A case of successfully treated intraosseous neurofibroma of the cervical spine associated with skeletal fluorosis causing tetraparesis is reported. The clinical features, diagnostic aspects and the management is described and the literature
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Skeletal fluorosis causing high cervical myelopathy
Skeletal fluorosis is endemic in some parts of the world and is the result of life-long ingestion of high amounts of fluoride in drinking water. Its clinical presentation is characterized mostly by bone and dental changes with later ossification of many ligaments and interosseous membranes. We present a rare case of high cervical myelopathy
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Chronic fluoride intoxication with fluorotic radiculomyelopathy.
This case of a patient with chronic fluoride intoxication, extensive osteosclerosis, and fluorotic radiculomyelopathy is believed to be the first reported froni the United States. The development of advanced fluorosis in this patient exposed to drinking vater with less than 4 ppm of fluoride was unusual and with probably a
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Posttraumatic pseudomenigocoele of cervical spine in a patient with skeletal fluorosis. Case report
A case of fluorotic cervical compressive myelopathy precipitated by trauma is reported. The delayed neurological deterioration was due to a posttraumatic pseudomenincocele, the prompt treatment of which resulted in recovery. Posttraumatic pseudomeningocele is very rate; and certainly so in fluorosis, and thus has not been reported in the literature to date.
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Fluoride & Spinal Stenosis
Spinal stenosis is a narrowing of the spaces in the spine that results in pressure being placed on the spinal cord and/or nerve roots. Although stenosis can develop without symptoms, it may produce numbness, tingling, pain and difficulty in walking, as well as a heavy/tired feeling in the legs. It is estimated that 250,000 to 500,000 Americans currently have symptoms of spinal stenosis. Skeletal fluorosis is one cause of stenosis.
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Skeletal Fluorosis: The Misdiagnosis Problem
It is a virtual certainty that there are individuals in the general population unknowingly suffering from some form of skeletal fluorosis as a result of a doctor's failure to consider fluoride as a cause of their symptoms. Proof that this is the case can be found in the following case reports of skeletal fluorosis written by doctors in the U.S. and other western countries. As can be seen, a consistent feature of these reports is that fluorosis patients--even those with crippling skeletal fluorosis--are misdiagnosed for years by multiple teams of doctors who routinely fail to consider fluoride as a possible cause of their disease.
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"Pre-Skeletal" Fluorosis
As demonstrated by the studies below, skeletal fluorosis may produce adverse symptoms, including arthritic pains, clinical osteoarthritis, gastrointestinal disturbances, and bone fragility, before the classic bone change of fluorosis (i.e., osteosclerosis in the spine and pelvis) is detectable by x-ray. Relying on x-rays, therefore, to diagnosis skeletal fluorosis will invariably fail to protect those individuals who are suffering from the pre-skeletal phase of the disease. Moreover, some individuals with clinical skeletal fluorosis will not develop an increase in bone density, let alone osteosclerosis, of the spine. Thus, relying on unusual increases in spinal bone density will under-detect the rate of skeletal fluoride poisoning in a population.
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Fluoride & Osteoarthritis
While the osteoarthritic effects that occurred from fluoride exposure were once considered to be limited to those with skeletal fluorosis, recent research shows that fluoride can cause osteoarthritis in the absence of traditionally defined fluorosis. Conventional methods used for detecting skeletal fluorosis, therefore, will fail to detect the full range of people suffering from fluoride-induced osteoarthritis.
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X-Ray Diagnosis of Skeletal Fluorosis
In 1937, Kaj Roholm published his seminal study Fluorine Intoxication in which he described three phases of bone changes that occur in skeletal fluorosis. (See below). These three phases, which are detectable by x-ray, have been widely used as a diagnostic guide for detecting the disease. They describe an osteosclerotic bone disease that develops first in the axial skeleton (the spine, pelvis, and ribs), and ultimately results in extensive calcification of ligaments and cartilage, as well as bony outgrowths such as osteophytes and exostoses. Subsequent research has found, however, that x-rays provide a very crude measure for diagnosing fluorosis since the disease can cause symptoms and effects (e.g., osteoarthritis) before, and in the absence of, radiologicaly detectable osteosclerosis in the spine.
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