Influence of design features of tibial stems in total knee arthroplasty on tibial bone remodeling behaviors

Total knee arthroplasty (TKA), which is an effective treatment of advanced arthritis of the knee, is expected with a consecutive distinct increasing applications [1,2]. However, 13% and 30% of TKA patients experience pain in short term and long term respectively [3], which may be caused by multifactorial etiology [4]. In addition, it was found that mechanical loosening was the most common reason for tibial component revision (24.6%) [5]. Several authors indicated that inadequate bone stock caused by stress shielding and stress concentration increases the risk of prosthesis loosening and periprosthetic fracture, and also triggers pain [6 –8].
Source: Medical Engineering and Physics - Category: Biomedical Engineering Authors: Source Type: research