Design Optimisation of Bi-Cruciate Retaining Total Knee Arthroplasty (TKA) Prosthesis via Taguchi Methods

Abstract

Total knee replacement has become a viable option for treating severe knee arthritis. The demand for more kinematically functional implants that better replicate natural knee kinematics led to the development of total knee arthroplasty (TKA), including bi-cruciate-retaining (BCR) TKA. However, optimised design parameters of BCR TKA knee implants that can help achieve a long-term prosthetic survival rate remain unknown. Therefore, this study aimed to investigate the effect of the design parameters of BCR TKA knee implants on the mechanics of knee joints and optimise and individualise the knee implant design parameters using the Taguchi method incorporating finite element analysis. Herein, experimental factors and levels were selected and nine finite element models of BCR TKA knee implants were developed to optimise the design of the following parameters: the curvature ratio on the sagittal plane, curvature ratio on the coronal plane, and tibial slope. In addition, finite element analysis was used to determine the effect of the design parameters on the peak contact stress on ultra-high-molecular-weight polyethylene (UHMWPE) and its deformation. Consequently, among the three parameters that affect the peak contact stress and its deformation, the curvature ratio on the sagittal plane had the greatest effect (range = 10.96), followed by the curvature ratio on the coronal plane (range = 3.54), and the tibial slope (range = 2.56). The optimal design parameters for the BCR TKA knee implant were a curvature ratio of 1.5 on both the sagittal and coronal planes and a tibial slope of 5°. Under these conditions, the peak contact stress and deformation were 25.80 MPa and 0.0835 mm, respectively. The optimisation method based on finite element analysis and the Taguchi method can produce one of the highest-performing BCR TKA knee implant designs, thereby reducing the peak contact stress and deformation. This method sheds fresh light on the development of the BCR TKA knee implant as well as biomechanical decision-making to implant the TKA prosthesis correctly.

Application and Prospect of Wear Simulation Based on ABAQUS: A Review

“…The design of joint surface curvature is crucial in TKA for tibiofemoral kinematics and contact mechanics. Yet, the effects of this curvature on various designs remain underexplored [120]. Mukhtar et al [120] optimized and personalized the design parameters of a knee implant using the Taguchi method.…”

“…Yet, the effects of this curvature on various designs remain underexplored [120]. Mukhtar et al [120] optimized and personalized the design parameters of a knee implant using the Taguchi method. The constructed model and simulation results are shown in Figure 9a,d.…”

“…Figure 9. (a) FE model of the knee implant[120], (b) knee implant schematic[121], (c) predicted wear contours of the four different TKA designs: a conventional TKA, CPS-TKA, MPS-TKA, and BPS-TKA[121], (d) distribution of the contact stress on the UHMWPE tibial insert[120], and (e) predicted wear-depth contours for UHMWPE, PEEK, and CFR-PEEK in the gait simulation[122].…”

Non-Muslim Wife Maintenance in Malaysia: A Right or Privilege in the 21st Century?

“…Divorce under ta'liq or stipulation is provided under section 50 of the IFLA. Two cases could be referred to in this context, where wife succeeded in proving to the court that the husband had failed to provide maintenance and where the court subsequently decreed a ta'liq divorce, i.e., Saleemawegam v Mohd Anuar [37] and Aminah v Ahmad [38].…”

Data Analysis of Biomechanical Dynamic Modeling of a Prosthetic Running Blade

“…In prosthetic running blades, explicit dynamic modeling emerges as a pivotal tool, enabling a deeper understanding of the complex biomechanical interactions. This approach is particularly relevant in the context of high-impact activities such as running, where the prosthetic must not only replicate but also enhance the natural movement of the human body (Al-Fareh et al, 2023;Dardari et al, 2023;Mohd Mukhtar et al, 2023;Murawa et al, 2023;Seratiuk Flores et al, 2023;Sidhu et al, 2023). The explicit dynamic modeling of a prosthetic running blade involves simulating the real-time physical behaviors of the blade under various conditions, such as different speeds, angles of impact, and forces.…”