Rotatory palmar subluxation of the lunate in post-traumatic ulnar carpal translocation

Axel Stäbler, Richard G.H. Baumeister, Ulrike Szeimies, Ulrich Fink, Hermann Berger

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Post-traumatic ulnar carpal translocation is a rare, severe ligamentous injury to the wrist. Radiologic findings include widening of the radiocarpal joint space at the radial styloid process and ulnar displacement of the carpus. Less than 50% of the lunate articulates with the radius in the neutral position; the lunate is tilted dorsally with palmar subluxation due to a ruptured radioscapholunate (RSL) ligament. This malposition should be called rotatory palmar subluxation of the lunate (RPSL), by analogy to rotatory subluxation of the scaphoid (RSS). In contrast to dorsiflexed intercalated segment instability (DISI), in RPSL the RSL ligament is ruptured and, in the majority of cases, the scapholunate ligament remains intact. A prompt diagnosis should lead to successful treatment.

Original languageEnglish
Pages (from-to)103-106
Number of pages4
JournalSkeletal Radiology
Volume23
Issue number2
DOIs
StatePublished - Feb 1994
Externally publishedYes

Keywords

  • Carpal instability
  • Injuries
  • Ligaments
  • Ulnar translocation
  • Wrist

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