Hip joint implants – survey of numerical modeling

In the paper the discussion of the modeling of hip joint implants is presented. The historical attempts to implant construction finally led to complex solutions. To date almost all experiences have learned from clinic observation and rather tests and trial methods than systematic research. Numerical simulations have been limited to simple stress analysis. All the phenomena responsible for the damage in the treated joint are not fully explained. The complexity of the problem is presented in the paper. The stress concentration in the region of rigid inclusion is pointed as one of the mechanical destructive factors. The change of the stem form and material rigidity could reduce extremal stresses by 10-20%.