Three-dimensional biomechanical modeling of an intraosseous implant for wrist arthrodesis

Abstract

This study integrate concepts from biomechanics, anatomy, and computational engineering in order to develop a modeling methodology of an intraosseous implant applied to the metacarpal region of the human wrist using by the Finite Element Method (FEM). The research is framed within the context of wrist arthrodesis surgery — a procedure aimed at permanently immobilizing carpal bones to relieve pain and stabilize the joint.  The methodology involves the use of computed tomography (CT) scans to generate a three-dimensional geometric model of the wrist region. The model undergoes refinement and geometric simplification to focus on the most relevant bony structures for the clinical case. The implant under investigation is based on a patented design specifically developed for use in arthrodesis procedures, promoting fixation between the metacarpal bones.