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About

Jonas Kellens is a leading orthopedic researcher whose work centers on optimizing total knee arthroplasty (TKA) through advanced alignment philosophies and surgical technologies. His primary contributions lie in developing and validating **inverse kinematic alignment (iKA)**—a patient-specific approach that restores native knee kinematics rather than imposing a fixed mechanical axis. In his seminal 2020 study (165 citations), Kellens demonstrated that restricted iKA yields significantly higher patient satisfaction than adjusted mechanical alignment, challenging long-standing surgical norms. His 2022 paper (79 citations) further established iKA as a distinct, reproducible alignment concept with theoretical advantages over conventional methods. Kellens also investigates the synergy between alignment and technology: his comparative trial (36 citations) showed that combining robotic assistance with patient-specific alignment enhances clinical outcomes. By bridging biomechanical theory with practical surgical technique, Kellens has reshaped how surgeons approach knee arthroplasty, moving the field toward more individualized, kinematic-based care. His work is widely cited by both clinicians and researchers seeking to improve functional recovery and long-term satisfaction in TKA patients.