Evaluation of the Dunlap/Rippstein method for determination of femoral neck angles

The accuracy of the Dunlap method, as modified by Rippstein, for measuring the femoral neck angles was evaluated using adult bodies. The results were correlated to measurements on the dissected femurs. The Dunlap/Rippstein method correlated well with the determinations made in the specimens. The accuracy of the method was within +/- 7 degrees for the anteversion angle and within -5 to +9 degrees for the head-neck-shaft angle.