Fig. 2

A, B Experiment for assessing the pullout strength of conventional- and helical blade-type hip screws. C, D Experiment for assessing the rotational strength of conventional- and helical blade-type hip screws

A, B Experiment for assessing the pullout strength of conventional- and helical blade-type hip screws. C, D Experiment for assessing the rotational strength of conventional- and helical blade-type hip screws