Here’s a nrrd file of a CT leg at nice resolution (.7 x .7 x .3 mm) voxels.
The link above is just the left leg, but both legs and more pelvic anatomy is available in the original DICOM data. It is shared under a CC-by attribution license and the original is on TCIA. Be sure to cite the data source if you use it.
The data is for subject TCGA-CV-A6JU in the TCGA-HNSC collection.