Subject-specific modeling of muscle force and knee contact in total knee arthroplasty

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
Alessandro NavacchiaKevin B Shelburne

Abstract

Understanding the mechanical loading environment and resulting joint mechanics for activities of daily living in total knee arthroplasty is essential to continuous improvement in implant design. Although survivorship of these devices is good, a substantial number of patients report dissatisfaction with the outcome of their procedure. Knowledge of in vivo kinematics and joint loading will enable improvement in preclinical assessment and refinement of implant geometry. The purpose of this investigation was to describe the mechanics of total knee arthroplasty during a variety of activities of daily living (gait, walking down stairs, and chair rise/sit). Estimates of muscle forces, tibial contact load, location, and pressure distribution was performed through a combination of mobile fluoroscopy data collection, musculoskeletal modeling, and finite element simulation. For the activities evaluated, joint compressive load was greatest during walking down stairs; however, the highest contact pressure occurred during chair rise/sit. The joint contact moment in the frontal plane was mainly varus for gait and walking down stairs, while it was valgus during chair rise/sit. Excursion of the center of pressure on the tibial component was sim...Continue Reading

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Citations

Dec 21, 2016·The Journal of the American Academy of Orthopaedic Surgeons·Paul J RullkoetterChadd W Clary
Jan 13, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Maged AwadallaMark Taylor
Feb 8, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Azhar A AliKevin B Shelburne
Sep 25, 2017·Archives of Orthopaedic and Trauma Surgery·Geert PeersmanLennart Scheys
Jun 28, 2018·Annals of Biomedical Engineering·Donald R HumeKevin B Shelburne
May 4, 2021·Frontiers in Bioengineering and Biotechnology·Iliana LoiKonstantinos Moustakas

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