Effect of angular mismatch on tribocorrosion at taper-trunnion junction using a finite element model considering mechanical and chemical wear

Advancement in total hip implant: a comprehensive review of mechanics and performance parameters across diverse novelties

“…Comprehensive details of this dataset (Force F and Moment M) are openly accessible on their website. 54 In addition, contemporary research 168–173 focused on evaluating the mechanical performance of hip implants with diverse joint designs using the force data reported on the Orthoload website. 54 As an illustration, during the 15% gait cycle corresponding to walking activities (AVG75 weight category), significant peak resultant force and moment measurements were obtained: 1860 N and 1.133 N m, respectively.…”

“…Thus, based on the existing literature, the factors influencing the wear and stability of hip implants encompass material selection, 80,206–208 patient activity levels, 164,167,172,191–193,199,209 contact surface area, 202–205 taper design, 208,210–212 angular misalignment, 163,168,213 and neck geometry. 166,214,215 In the context of material combinations, it's typically found that a hip stem taper junction made from a more rigid material carries a lower risk of corrosion than a junction constructed from a less rigid material.…”

“…The literature reported that a positive taper angle mismatch is associated with higher contact pressure and wear depth at the tapered trunnion of a hip implant compared to a negative taper angle mismatch. 163,168,213 However, the increment of taper angular mismatch results in a higher wear rate at the tapered junction. 170 Alterations in the neck cross-sectional shape influence flexural rigidity.…”