Pneumoarthrography: reemphasis of a neglected technique.

Pneumoarthrography is a diagnostic method with which the arthrographer can confidently diagnose common joint abnormalities. Pneumoarthrography is especially applicable when it is necessary to avoid injection of iodinated contrast material and may be used in any situation where it is advisable to limit contrast-associated pain, inflammation, or synovitis. We report four patients who had pneumoarthrograms because of contrast sensitivity and illustrate the examination quality and diagnostic efficacy achieved.