title: [Influence of wall thickness on the stress distribution within transtibial monolimb].
abstract: Monolimb is a new type of lower-limb prostheses made of macromolecule polymer, in which the socket and prosthetic shank are integrative. Compared with traditional prosthesis, monolimb is more economical, good-looking and portable, so it indicates a possible direction in the future. Biomechanical research on trans-tibial monolimb is necessary and helpful just like traditional prosthesis. In this article, a 3D FE model based on real geometry shape of an endoskeletal trans-tibial monolimb is established. Keeping the same geometrical shape, three 3D FE models of transtibial monolimbs with different wall thickness are established. The influence of wall thickness on the stress distribution is analyzed under the load corresponding to the subphase of stance of Heel Off. The results indicate that stress within transtibial monolimb and pressure on the surface of soft tissue could be decreased with wall thickness of transtibial monolimb increased. This study will be helpful for the standard of wall thickness in designing transtibial monolimb.
authors.affiliation: Biomechanics Institute, Sichuan University, Chengdu 610065, China.
authors.forename: Zhan
authors.initials: Z
authors.lastname: Liu
authors.forename: Yubo
authors.initials: Y
authors.lastname: Fan
authors.forename: Ming
authors.initials: M
authors.lastname: Zhang
authors.forename: Wentao
authors.initials: W
authors.lastname: Jiang
authors.forename: Fang
authors.initials: F
authors.lastname: Pu
authors.forename: Junkai
authors.initials: J
authors.lastname: Chen
mesh_terms: D000674:Amputees / Q000534:rehabilitation*; D001186:Artificial Limbs; D001696:Biomechanical Phenomena; D006801:Humans; D007866:Leg / Q000601:surgery; D011474:Prosthesis Design; D013314:Stress, Mechanical