Lifetime risk of total knee replacement and temporal trends in incidence by health care setting, socioeconomic status, and geographic location

Abstract

Objective To estimate the lifetime risk of total knee replacement (TKR) and examine temporal trends in TKR incidence in the state of Victoria, Australia. Methods We performed a retrospective analysis of a population-based longitudinal cohort of patients (ages ≥40 years) who received a primary TKR in Victoria from 1999-2008. Hospital separations and life tables were used to estimate lifetime risk. Temporal changes in TKR incidence were examined according to health care setting (public versus private), socioeconomic status (SES), and geographic location (regional versus metropolitan). Results There were 43,570 incidents of primary TKRs identified over the study period. In 2008, the lifetime ri..