Discussion
knee arthroplasty, fatigue, TKA
COMPLICATIONS
This study showed that the application of PEEK prostheses in primary TKA produced comparable cement penetration as the traditional CoCrMo prostheses, while simultaneously offering similar short-term clinical and functional outcomes without increased complications. This indicates that PEEK knee prostheses are a safe and effective prostheses that can provide excellent patient prognosis.Between 2012 and 2021, the American Joint Replacement Registry (AJRR) collected data on 122,852 revision total knee arthroplasty (TKA) procedures, revealing that mechanical loosening of the prosthesis was the second-most common reason for knee revision surgery, accounting for 24.0% of cases [As a copolymer compound, PEEK exhibits superior properties compared to metals, including reduced allergenicity, lighter weight, greater fatigue resistance, and chemical resistance [Besides, several studies have investigated the performance of PEEK in different orthopedic implants using various testing methods and have reported positive findings regarding PEEK's mechanical properties, technical outcomes, and safety [In this study, limited research had been reviewed on PEEK knee implants that has been conducted to date. Recent studies that investigated the feasibility and mechanical performance of PEEK-based knee implants had been summarized. Du et al. [Ruiter et al. [Additionally, Cowie et al. [