Skeletal fluorosis in immobilized extremities.

Acta Pathologica Et Microbiologica Scandinavica. Section A, Pathology
J B Rosenquist

Abstract

The effect of immobilization on skeletal fluorosis was studied in growing rabbits. One hind leg was immobilized by an external fixation device extending below the wrist joint and above the knee joint, the extremity being in a straight position after severance of the sciatic nerve. The animals, aged 7 weeks at the beginning of the experiment, were given 10 mg of fluoride per kg body weight and day during 12 weeks. In the tibiae, development of the skeletal fluorosis was more irregular than that observed in previous studies of normally active animals, being most excessive in the mobile bone. The immobilization effect was most profound in the femora as the cortical thickness and the femur score were significantly higher than those in the mobile femora. It was suggested that an altered muscular activity was the reason for the observed changes.

References

Dec 23, 1966·Science·M S Frant, J W Ross
May 1, 1958·The Journal of Bone and Joint Surgery. British Volume·M GEISER, J TRUETA

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