Alfonso™ validation whitepapers

ASTM F2077 axial compression of spinal fusion devices

Validation of our ASTM F2077 axial compression model for titanium spinal interbody fusion devices in Alfonso™

ASTM F1839-08-2021 solid rigid polyurethane foam models

Validation of our 10,15,20, and 40 PCF solid rigid polyurethane foam material models in Alfonso™

ASTM F543-A3 orthopaedic screw pull-out from PU foam

Validation of our ASTM F543-A3 orthopaedic screw pull-out from PU foam models in Alfonso™

ASTM F1264 four-point bending of intramedullary nails

Validation of our ASTM F1264 four-point bending of intramedullary nails in Alfonso™

ASTM F2267 subsidence of spinal fusion devices

Validation of our ASTM F2267 subsidence model for titanium spinal interbody fusion devices in Alfonso™

Peer-reviewed journal articles and conference abstracts

Paper Presentation at the 2021 OTA Annual Meeting

Kulper, S. A., Lin, T.H, Ren, X., Coombs, D. J., Bushelow, M., Fang, E., Alvi, A. A., Ueda, E. A., Zhang, T., Fang, C. X.

Lifespans, Ltd., The University of Hong Kong, Tongji University, DePuy Synthes, Queen Mary Hospital

A novel mesh-free method for accurately simulating the crushing and cracking behavior of trabecular bone tissue with a wide range of clinically relevant bone mineral density values.

Lifespans Soft Bone Simulator Validation Article

Kulper, S. A., Fang, C. X., Ren, X., Guo, M., Sze, K. Y., Leung, F. K., & Lu, W. W. (2018).

Development and initial validation of a novel smoothed particle hydrodynamics based simulation model of trabecular bone penetration by metallic implants.

Journal of Orthopaedic Research®, 36(4), 1114-1123.
https://doi.org/10.1002/jor.23734
[pub]

Lifespans Soft Tip Mechanical Theory Article

Kulper, S.A., Sze, K.Y., Fang, C.X., Ren, X., Guo, M., Schneider, K., Leung, F., Lu, W. and Ngan, A. (2018).

A novel fracture mechanics model explaining the axial penetration of bone-like porous, compressible solids by various orthopaedic implant tips.

Journal of the Mechanical Behavior of Biomedical Materials, 80, 128-136. https://doi.org/10.1016/j.jmbbm.2018.01.025

Alfonso™ Simulation Talks

Beyond FEA: Particle-based simulation 101
A modern approach for implant designers

Alfonso™ Demo Video

An introduction to its applications and capabilities

Intellectual Property

Alfonso™ embodies and utilizes proprietary processes, algorithms, and models of implants, bone and bonelike materials for simulation. It is based on intellectual property rights exclusive to Lifespans Limited - including proprietary copyright software and know-how - and has pending patent rights. Any non-exclusive technologies utilized by this system are open-source and/or are properly licensed for commercial use. No other third party proprietary software or simulation solvers, such as those of Abaqus, Ansys, Mimics, etc., are utilized in or by the Alfonso simulator.

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