An experimental evaluation of the stability of rotational fixation of
unstable, subcapital femoral-neck fractures as provided by either the
multiple pin and side-plated Deyerle device or the heavy duty Jewett
triflanged nail showed no significant difference between the two devices.
The determination of moment versus deformation behavior included study of
two torsional axis orientations and superposition of simulated body-weight
and muscular-force impaction loadings.