John L. Masonis

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About

Dr. John L. Masonis is a leading orthopedic surgeon and researcher specializing in joint preservation and reconstructive surgery, with a particular focus on unicompartmental knee arthroplasty (UKA). His most-cited work, "Lateral Unicompartmental Knee Arthroplasty" (2020, 46 citations), has been instrumental in advancing the understanding and clinical application of lateral UKA. Dr. Masonis’s research demonstrates that this procedure yields excellent functional outcomes and durable implant survivorship when performed on carefully selected patients, challenging traditional treatment paradigms for isolated lateral compartment osteoarthritis. By critically evaluating the evidence, he has highlighted the need for high-quality studies to determine whether expanded indications for medial UKA can be safely applied to the lateral compartment. His contributions have shaped surgical decision-making, emphasizing patient selection and technique optimization to improve long-term results. Dr. Masonis’s work is widely cited by peers and serves as a cornerstone for surgeons seeking to expand joint preservation options. His ongoing research continues to refine minimally invasive approaches, ultimately enhancing mobility and quality of life for patients with focal knee arthritis.