Pressure gun injection injuries of the hand.

In the growing number of pressure gun injuries with injection of materials into the hand, the degree of toxicity of the material, the amount injected and early adequate treatment are the three most important factors in determining the final result. Paint is the most toxic agent and causes an extreme amount of tissue inflammation. Early debridement of the injected material gives the best functional result. In spite of early surgical debridement, some of these injuries, most commonly with highly toxic agents, progress to eventual amputation.