Radius tilt
Alle deler > BILL > Studier > Hånd abs
Rajabi B, Rød Ø, Rød K, Alm-Paulsen P S, Russwurm H, Finsen V.
ACCURATE RADIOGRAPHIC MEASUREMENT OF THE DISTAL RADIAL TILT
Hand Surgery 2011; 16: 259-62
Both wrists in 189 patients who had been treated for dorsally displaced distal radius fracture were X-rayed with both right angle and 15o tilted lateral views. Two investigators measured the radial tilt. The mean difference in the angles recorded by the two investigators was 2.5o for the tilted and 3.7o for the right angle projections ( p = 4.7 x 10-8). The precision of the method was 2.6o for the tilted and 3.5o for right angle projection. The mean angle measured on the tilted views was 3o more dorsal than on the right angle views for wrists with a volar tilt between 10o and 15o, and 0o to 2o for wrists with less volar tilt or dorsal displacement. Lateral projections tilted 15o allow more precise measurements than right angle views. Correction is not necessary when comparing to right angle views, as long as there is displacement in a dorsal direction of the distal fragment.