Ten years of all-terrain vehicle injury, mortality, and healthcare costs.

Background: All-terrain vehicles (ATVs) are increasing in popularity worldwide. The province of Alberta accounts for 25% of Canadian ATV sales. This study describes the epidemiology, outcomes, and associated healthcare costs for a decade of ATV traumatic injury incidents.

Factors related to the failure of radiographic recognition of occult posttraumatic pneumothoraces.

Purpose: Although posttraumatic pneumothoraces (PTXs) are common and potentially life threatening, the supine chest radiograph (CXR) is an insensitive test for their detection. Computed tomography (CT) often identifies occult pneumothoraces (OPTXs). Previous descriptions of OPTX topography have been poor.