The effect of radioscapholunate fusion on wrist movement and the subsequent effects of distal scaphoidectomy and triquetrectomy

M. J. Berkhout, M. N. Shaw, L. J. Berglund, K. N. An, R. A. Berger, M. J.P.F. Ritt

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Radioscapholunate arthrodesis is a salvage procedure indicated for osteoarthritis of the radiocarpal joint involving the lunate facet of the radius. This cadaver study examines changes in wrist motion resulting from radioscapholunate arthrodesis, and the effects of surgical techniques to improve the range of motion. Simulated radioscapholunate arthrodesis, distal scaphoidectomy and triquetrectomy were carried out sequentially on six cadaver forearms and measurements (maximum flexion/extension and radial/ulnar deviation) were taken in the intact situation and after each surgical step using a magnetic tracking device. Radioscapholunate arthrodesis diminishes the amplitudes of movements of the wrist in all directions, but range of motion in the radioscapholunate fused wrist improves after scaphoidectomy and improves further after triquetrectomy (88% of original flexion/extension and 98% of original radial/ulnar deviation). Radioscapholunate arthrodesis causes a significant change in kinematics between the hamate and the triquetrum in flexion/extension.

Original languageEnglish (US)
Pages (from-to)740-745
Number of pages6
JournalJournal of Hand Surgery: European Volume
Volume35
Issue number9
DOIs
StatePublished - Nov 1 2010

Keywords

  • cadaver
  • fusion
  • kinematics
  • lunate
  • radius
  • scaphoid

ASJC Scopus subject areas

  • Surgery

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