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A middle-aged male resident of Benghazi, northeastern Libya, with radiological features of skeletal fluorosis associated with cervical radiculomyelopathy is reported. This is believed to be the first documentation of such a disorder from this non-tropical, non-endemic region.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
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A survey was done of the prevalence of dental fluorosis among children aged 7-16 years and the occurrence of skeletal fluorosis among adults aged 40-60 years living in regions in Senegal where fluoride concentrations in the drinking water ranged from less than 0.1 to 7.4 mg/l. In the area where the fluoride concentration in the drinking water was 1.1 mg/l milder forms of dental fluorosis were found, the prevalence being 68.5%. In areas where fluoride concentrations exceeded 4 mg/l the prevalence of dental fluorosis reached 100%. Kyphosis was very prevalent among a community whose drinking water contained 7.4 mg/l fluoride. Radiographs of the vertebral column, hand, and wrist of 3 adults with kyphosis confirmed the diagnosis of skeletal fluorosis. High sweat loss and a high intake of water because of the hot weather may account for the finding. The present World Health Organisation guideline for the upper limit of fluoride concentration in drinking water may be unsuitable for countries with a hot, dry climate.
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Renal fluoride toxicity in human beings is difficult to assess in the literature. Although experimental studies and research on methoxyflurane toxicity have shown frank renal damage, observations of renal insufficiency related to chronic fluoride exposure are scarce. We report a case of fluoride intoxication related to potomania of Vichy water, a highly mineralized water containing 8.5 mg/L of fluoride. Features of fluoride osteosclerosis were prominent and end-stage renal failure was present. The young age of the patient, the long duration of high fluoride intake, and the absence of other cause of renal insufficiency suggest a causal relationship between fluoride intoxication and renal failure.
The presence of excessive quantities of fluorine in drinking water is accompanied by a characteristic sequence of changes in teeth, bone and periarticular tissues. These changes lead to a variable degree of locomotor disability, ranging from simple mechanical back pain to severe, crippling, combined locomotor and neurological impairment. In endemic areas, a substantial proportion of the population may be affected, posing a severe public health problem. In some areas, the hazards to human health are not fully appreciated and are under-reported. The maximum impact is felt in those communities engaged in physically strenuous activities, either agricultural or industrial. The need of these often isolated communities in economically hard-pressed countries, for the provision of low-fluoride drinking water remains a hope rather than an expectation at the present time.
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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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