Cement penetration (CP) plays a key role in implant stability for cemented total knee arthroplasty (TKA), and the radiolucent line (RLL) >2 mm is a preliminary sign for loosening of components. However, the direct relationship between CP and the frequency of RLL >2 mm is unclear, and the best cut-off value for CP to prevent RLL >2 mm also remains unclear. This study aimed to investigate this relationship between CP and RLL and to determine the clinical cut-off value for tibial CP in patients 2 years after TKA.
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Sasaki et al. (2024) studied this question.
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