Multiplanar reformation computed tomography for carpal malalignment

Philip M. J. Schormans*, Judith P. M. Schots, Rene E. Weijers, Daan V. Loeffen, Martijn Poeze, Pascal F. W. Hannemann

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Correct interpretation of scaphoid axial length and carpal malalignment is difficult owing to the complex geometry of the scaphoid. Traditional measurements, such as the scapholunate angle and radiolunate angle, have shown limited reproducibility. To improve the assessment of these measurements, we used multiplanar reformation computed tomography with added average intensity projection. Four measurements for scaphoid morphology and carpal alignment were independently measured by four observers on computed tomography scans of 39 consecutive patients who were treated conservatively for scaphoid fracture. Fleiss's kappa for categorical results showed substantial agreement for the measurements of the scapholunate and radiolunate angles. Intraclass correlation coefficients were significant for measurements of the axial length, scapholunate angle and radiolunate angle. Our results suggest that multiplanar reformation computed tomography with added average intensity projection is a reliable technique for assessment of scaphoid morphology and carpal alignment.

Original languageEnglish
Article number1753193419869193
Pages (from-to)1049-1055
Number of pages7
JournalJournal of Hand Surgery-European Volume
Volume44
Issue number10
Early online date19 Aug 2019
DOIs
Publication statusPublished - Dec 2019

Keywords

  • Scaphoid malunion
  • carpal malalignment
  • multiplanar reformation computed tomography
  • average intensity projection
  • reliability
  • SCAPHOID FRACTURES
  • NONUNION
  • MALUNION
  • UNION
  • WRIST
  • RELIABILITY
  • ALIGNMENT
  • DEFORMITY
  • ANGLES
  • PLANE

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