Hand and wrist
Bouman's index no 1
Ulnar translation
0.83-0.91
Radiography (Posteroanterior)
a : length of radial articular surface |
b : distance between styloid process of radius and proximal ulnar corner of the lunate |
Bouman's index no 1 = a / b |
Reference
Borisch N, Lerch K, Grifka J et-al. A comparison of two indices for ulnar translation and carpal height in the rheumatoid wrist. J Hand Surg Br. 2004;29 (2): 144-7.
Pubmed ID: 15010160