title: Anterior knee pain following primary total knee arthroplasty.
abstract: Despite improvements in technique and technology for total knee arthroplasty (TKA), anterior knee pain impacts patient outcomes and satisfaction. Addressing the prosthetic and surgical technique related causes of pain after TKA, specifically as it relates to anterior knee pain, can aid surgeons in addressing these issues with their patients. Design features of the femoral and patellar components which have been reported as pain generators include: Improper femoral as well as patellar component sizing or designs that result in patellofemoral stuffing; a shortened trochlear groove distance from the flange to the intercondylar box; and then surgical technique related issues resulting in: Lateral patellar facet syndrome; overstuffed patella/flange combination; asymmetric patellar resurfacing, improper transverse plane component rotation resulting in patellar subluxation/tilt. Any design consideration that allows impingement of extensor mechanism anatomical elements has the possibility of impacting outcome by becoming a pain generator. As the number of TKA procedures continues to increase, it is increasingly critical to develop improved, evidence based prostheses that maximize function and patient satisfaction while minimizing pain and other complications.
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: David
authors.initials: D
authors.lastname: Shervin
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: Katelyn
authors.initials: K
authors.lastname: Pratt
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: Travis
authors.initials: T
authors.lastname: Healey
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: Samantha
authors.initials: S
authors.lastname: Nguyen
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: William M
authors.initials: WM
authors.lastname: Mihalko
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: Mouhanad M
authors.initials: MM
authors.lastname: El-Othmani
authors.affiliation: David Shervin, Katelyn Pratt, Travis Healey, Samantha Nguyen, Mouhanad M El-Othmani, Khaled J Saleh, Division of Orthopaedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, IL 62794-9679, United States.
authors.forename: Khaled J
authors.initials: KJ
authors.lastname: Saleh
keywords: Anterior knee pain; Arthroplasty; Knee replacement; Primary; Total knee arthroplasty