[Can ultrasonography be used to measure torsion angle of the humerus? Comparison of ultrasonographic, computerized tomographic and anthropometric methods].

Sonographic measurements on 40 cadavaric humeri of the angle of torsion according to Harland had been performed. The results were referred to different computertomographic and anthropometric methods. Sonographic measurements proofed to be accurate and were easily reproducible. Comparing sonographically detected angles with the anthropometric results there was shown a mean difference of 28.9 degrees +/- 7.8 degrees. We conclude that sonography is able to give accurate and reproducible results that do not exactly reflect the angle of torsion.