The benefits of various minerals and vitamins on fracture healing have been demonstrated in animal models. Vitamin C is an essential substance in fracture healing but has not been studied previously on an experimental basis. Sixteen rats were grouped randomly into control and vitamin C-supplemented groups. The right tibias of all rats were fractured by digital manipulation. One group received single high dose of vitamin C intramuscularly. On the 5th, 10th, 15th, and 20th days, two rats from each group were killed and the tibias examined under light microscopy. It was seen that the vitamin C-supplemented group went through the stages of fracture healing faster compared with the control group.
Extravasation of contrast material is a well-recognized complication of contrast-enhanced imaging studies. Most extravasations result only in minimal swelling or erythema; however, severe skin necrosis, ulceration and compartment syndrome may occur with extravasation of large volumes. This article presents a patient in whom extravasation developed after computed tomography (CT) contrast material was injected intravenously in the dorsum of the hand. Compartment syndrome was diagnosed, and the patient underwent fasciotomy. In follow-up, the patient regained full use of the hand. Although the use of contrast material has significantly improved the diagnostic accuracy of CT, anaphylaxis and contrast material extravasation are important complications. Selection of non-ionic contrast material, careful evaluation of the intravenous administration site and close monitoring of the patient during contrast material injection may help minimize or prevent extravasation injuries.
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