Artificial Lunate Arthroplasty for Kienböck Disease With Multiple Extensor Tendon Ruptures: A Case Report

JBJS Case Connect. 2023 Jun 15;13(2). doi: 10.2106/JBJS.CC.23.00147. eCollection 2023 Apr 1.


Case: A 73-year-old woman presented with wrist pain and loss of extension in the middle and ring fingers. Radiography revealed a dorsally displaced lunate fragment, resulting in a diagnosis of Kienböck disease with extensor tendon rupture. Artificial lunate replacement and tendon transfer were performed as treatment. Two years postoperatively, the pain was relieved, and the extension lag was 0°. The wrist motion and carpal height had also improved.

Conclusion: Lunate excision, partial wrist arthrodesis, or proximal row carpectomy are known treatments for Kienböck disease with extensor tendon rupture. Lunate arthroplasty is a novel, useful treatment option for this condition.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Arthroplasty
  • Carpal Bones* / surgery
  • Female
  • Humans
  • Lunate Bone* / diagnostic imaging
  • Lunate Bone* / surgery
  • Osteonecrosis* / diagnostic imaging
  • Osteonecrosis* / surgery
  • Rupture / surgery
  • Tendon Injuries* / surgery
  • Tendons / diagnostic imaging
  • Tendons / surgery