Ligamentous instabilities of the wrist.

Carpal ligament instabilities are conditions in which the individual carpal bones have become unstable due to abnormal ligament support. Early diagnosis of ligamentous wrist instabilities is important because late diagnosis or failed diagnosis may lead to severe complications such as osteoarthritis. This article reviews the most common ligamentous instability patterns of the wrist and focuses on how to perform and obtain radiograms which will allow reliable diagnosis of wrist instabilities.