Optimal position for the one-bone forearm. An analysis using a hinged brace in normal subjects.

The purpose of the present study was to determine whether there is an optimal position for fixation of the one-bone forearm. Eight normal individuals were fitted with a hinged brace which fixed the position of pronation and supination and underwent functional hand testing using the tests of Jebsen et al. Our results indicate that a one-bone forearm in a position of 30 degrees of pronation will provide the best function for writing and working with small objects using the dominant arm.