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- Title
Assessment of four midcarpal radiologic determinations.
- Authors
Cho, Mickey; Battista, Vincent; Dubin, Norman; Pirela-Cruz, Miguel
- Abstract
Several radiologic measurement methods have been described for determining static carpal alignment of the wrist. These include the scapholunate, radiolunate, and capitolunate angles. The triangulation method is an alternative radiologic measurement which we believe is easier to use and more reproducible and reliable than the above mentioned methods. The purpose of this study is to assess the intraobserver reproducibility and interobserver reliability of the triangulation method, scapholunate, radiolunate, and capitolunate angles. Twenty orthopaedic residents and staff at varying levels of training made four radiologic measurements including the scapholunate, radiolunate and capitolunate angles as well as the triangulation method on five different lateral, digitized radiographs of the wrist and forearm in neutral radioulnar deviation. Thirty days after the initial measurements, the participants repeated the four radiologic measurements using the same radiographs. The triangulation method had the best intra-and-interobserver agreement of the four methods tested. This agreement was significantly better than the capitolunate and radiolunate angles. The scapholunate angle had the next best intraobserver reproducibility and interobserver reliability. The triangulation method has the best overall observer agreement when compared to the scapholunate, radiolunate, and capitolunate angles in determining static midcarpal alignment. No comment can be made on the validity of the measurements since there is no radiographic gold standard in determining static carpal alignment.
- Subjects
MEDICAL radiography; CARPAL bones; CARPUS (Animal anatomy); WRIST; SCAPHOID bone; ANATOMY
- Publication
Surgical & Radiologic Anatomy, 2006, Vol 28, Issue 1, p92
- ISSN
0930-1038
- Publication type
Article
- DOI
10.1007/s00276-005-0038-z