Measurement of Forearm Rotation by Our Gravity Goniometer
For the purpose to measure the accurate angles of forearm rotation, the authors designed gravity goniometer Two hundred and seventy eight sound forearms and fourty two fractured were measured by our goniometer. The results obtained were as follows;1) In the sound forearms, the average degrees of rotation were about 170°, and the differences between the male and female and the right and left side were insignificantly. The average ranges of pronation were 70% of supination, and they were about 15 to 20 degrees larger in passive rotation than in active.2) The rotation, especially pronation, was restricted after the fractures of both bones of forearm and Monteggia's fractures, and the loss of rotation after the former fractures increased together with ages. The restrictions of rotation were slightly after the Colles' fractures and the shaft fractures of single bone of forearm.
- Measurement of Forearm Rotation by Our Gravity Goniometer
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