[Isolated ulnar luxation of metacarpal V].

Isolated ulnar luxation of metacarpal V without fractures at the basis or of adjunct bones is a rarely observed entity with available data in the literature based on few case reports. Careful interpretation of radiological findings leads to a correct diagnosis. Missed lesions may result in chronic pain syndrome at the site of injury. The functional role of the ligamentum metacarpale transversum profundum in this type of injury is frequently underestimated. Here, we present a case report and elucidate diagnostic pathways and treatment options based on the available literature.