✓ The toxicity of certain metals, namely, platinum, platinum-8% tungsten, platinum-10% rhodium, platinum-10% iridium, platinum-10% nickel, platinized platinum, a gold-nickel-chromium alloy, a gold-palladium-rhodium alloy, a chromium-nickel-molybdenum alloy (Vitallium), stainless steel, silver, rhenium, and gold, was evaluated histologically following chronic implantation for 2 months in the brains of cats. Of the above metals, all but silver were found to be nontoxic. Boron was also evaluated and found to be nontoxic.

No abstract

In high-pressure injection injuries to the hand the most commonly injected materials are automotive grease, diesel oil, and paint. We treated twenty-six patients with high-pressure injection injuries of the hand and found that the injection of paint resulted in a poorer prognosis than did the injection of grease. Amputation is often necessary with paint injections into a digit, while injections into the palm have a somewhat better prognosis. The d~sability time of patients with paint-injection injuries appeared to be directly related to the time elapsed until amputation of the involved digit. Although we were unable to specifically relate the ultimate result to the time elapsed between injury and proper treatment, we continue to recommend early aggressive wide d6bridement of these injuries.