This Matlab tool can be used to generate OpenSim musculoskeletal models with personalised femoral neck-shaft and anteversion angles, as well as tibial torsion angles.

More info about the tool can be found in the paper published in Journal of Biomechanics: https://doi.org/10.1016/j.jbiomech.2021.110589.
"Torsion Tool: An automated tool for personalising femoral and tibial geometries in OpenSim musculoskeletal models" by Kirsten Veerkamp, Hans Kainz, Bryce A. Killen, Hulda Jónasdóttir, Marjolein M. van der Krogt

The tool has been updated and should now be compatible with most OpenSim models. If you use the updated tool, please cite the following additional paper alongside the one mentioned above.
https://doi.org/10.1038/s41598-024-53857-9
"A framework based on subject-specific musculoskeletal models and Monte Carlo simulations to personalize muscle coordination retraining" by Hans Kainz, Willi Koller, Elias Wallnöfer, Till R Bader, Gabriel T Mindler, Andreas Kranzl