Impact of the COVID-19 Pandemic on Injury Incidence in Japanese Male Professional Soccer Players.

Background: The outbreak of the 2019 novel coronavirus disease (COVID-19) led to an enforced quarantine period and limited training and match activities for athletes.

Purpose: To report the influence of the COVID-19 pandemic on the occurrence of injury in Japanese male professional soccer players.

Study Design: Descriptive epidemiology study.

Ten-year results comparing posterior cruciate-retaining versus posterior cruciate-substituting total knee arthroplasty.

We compared the 10-year survival rates and clinical outcomes of posterior cruciate-retaining (CR) versus posterior cruciate-substituting (CS) total knee arthroplasty (TKA), using the Genesis II knee system (Smith and Nephew, Memphis, TN). Our institutional database identified patients undergoing a primary knee with the Genesis II system between 1995 and 2000. These patients were followed for an average of 12.