Computer-assisted patellar resection system: Development and insights

Incorrect resection of the patella during total knee arthroplasty (TKA) can lead to anterior knee pain (AKP), patellar maltracking, patellofemoral impingement, patellar fracture, component loosening, and reduced range of motion. Computer-assisted surgery (CAS) systems for the tibia and femur improve cut accuracy, but no CAS system is available for patellar resection. We developed a system that included an optoelectronic localizer, marker arrays on the patella and instruments, and navigation software. Chun Kit Fu1,Jeff Wai, Estee Lee, Carol Hutchison, Curtis Myden, Eldridge Batuyong, Carolyn Anglin. Journal of Orthopaedic Research. Article first published online: 17 OCT 2011 PDF