Tibial component rotation around the transverse axis measured by radiostereometry predicts aseptic loosening better than maximal total point motion

摘要

Background and purposeMaximal total point motion (MTPM) measured by radiostereometry (RSA) is widely used as a predictor of total knee arthroplasty (TKA) loosening. We compared the ability of different RSA measurements at different time points to predict loosening of tibial TKA components in the long term.