The evolution of patellofemoral prosthetic design in total knee arthroplasty: How far have we come?

Abstract

□ Total knee arthroplasty (TKA) has evolved into a successful, cost-effective treatment for end-stage knee arthrosis. □ The patellofemoral articulation in TKA has largely been ignored during its development despite being an important determinant of outcome. □ New technologies still need further development to incorporate the patella in TKA surgical planning and operative technique. □ Alternative approaches to alignment in TKA will have a secondary impact on patellofemoral mechanics and possibly future implant designs. □ Technologies that assist with precise implant positioning may alter our understanding and overall practice of TKA.