Lunotriquetral ligament instability

Revision as of 16:32, 18 October 2019 by ClaireLewis (talk | contribs) (→‎Management)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Background

  • Ulnar equivalent of the scapholunate ligament injury
  • May be confused with other causes of ulnar-sided wrist pain
  • Results from FOOSH with impact on hypothenar eminence

Clinical Features

  • Localized tenderness on ulnar aspect of wrist just distal to ulna

Differential Diagnosis

Hand and finger injuries

Evaluation

  • X-ray (note: imaging is often normal with this injury)
    • PA - Widening of the triquetrolunate joint space
    • Lateral - volar intercalated segment instability is seen
      • Lunate tilts palmar producing zigzag pattern (opposite of scapholunate injury)

Management

Disposition

  • Discharge with ortho follow-up

See Also

References