The AnyBody Modeling System has been used to solve a range of problems related to hips: It has been used to quantify the risk of edge loading, evaluating the consequences of surgical procedures, and to answer many other questions related to hip arthroplasty.
Examples:
- Edge load quantification
- Acetabular implant stability
- Hip contact forces during gait
- Physiological realistic loads for activities of daily living
- Lumbar loads dependency on spinopelvic sagittal alignment
- Hip surgery procedure influence on hip reaction forces
- Realistic loads and motions for wear simulations
Examples of input and output for a total hip arthroplasty model:
Input:
- Implants CAD files (STL)
- Implant positioning data
- Bone CAD files (STL)
- Anthropometrics data
- Motion data and ground reaction force
Output:
- Implant contact forces (accounting for muscles)
- Muscle and ligament forces
- And much more
Contact us to learn more or to discuss how we could solve your problem
Related pages
The steps to model this can be the following
- Reproduce the activity, e.g. walking, using your own data or an existing AnyBody model
- Custom scale the related bones using built-in morphing techniques (AnyFunTransForm3D)
- Run the inverse dynamic model (AnyBodyStudy)
- Evaluate the output: joint reaction forces, muscles, and ligament forces
Tutorials
Webcasts
- The role of the anterior hip capsule in daily hip performance
- Modeling subject-specific femoral torsion for the analysis of lower-limb joint loads
- LifeLongJoints: Musculoskeletal validation and wear simulation
- Biomechanical Outcome of Total Hip Replacements using a Patient-Specific Musculoskeletal Model
- Understanding the mechanical environment of the hip joint
Selected papers
- De Pieri E, Friesenbichler B, List R, Monn S, Casartelli NC, Leunig M, Ferguson SJ (2021), “Subject-Specific Modeling of Femoral Torsion Influences the Prediction of Hip Loading During Gait in Asymptomatic Adults“, Front Bioeng Biotechnol, vol. 9, pp. 679360. [DOI]
- Lunn DE, De Pieri E, Chapman GJ, Lund ME, Redmond AC, Ferguson SJ (2019), “Current Preclinical Testing of New Hip Arthroplasty Technologies Does Not Reflect Real-World Loadings: Capturing Patient-Specific and Activity-Related Variation in Hip Contact Forces“, J. Arthroplasty, vol. 0. [DOI]
- Mellon SJ, Grammatopoulos G, Andersen MS, Pandit HG, Gill HS, Murray DW (2015), “Optimal acetabular component orientation estimated using edge-loading and impingement risk in patients with metal-on-metal hip resurfacing arthroplasty“, J. Biomech., vol. 48, pp. 318-323. [DOI]
- Fischer MCM, Eschweiler J, Schick F, Asseln M, Damm P, Radermacher K (2018), “Patientspecific musculoskeletal modeling of the hip joint for preoperative planning of total hip arthroplasty: A validation study based on in vivo measurements“, PLoS One, vol. 13, pp. e0195376. [DOI]
- More papers on orthopedics