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About

Peter G. Sultan is an orthopedic biomechanics researcher whose work has significantly advanced our understanding of knee arthroplasty design and kinematics. Specializing in total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA), Sultan has focused on one of the field's most persistent clinical challenges: achieving high-flexion outcomes for patients following knee replacement surgery. His most influential contribution, a 2004 robotic experimental investigation of high-flexion posterior stabilized prostheses (115 citations), helped illuminate the biomechanical mechanisms that restrict knee flexion beyond 120° — a limitation affecting many TKA patients. Complementing this, his 2003 work on optimizing flexion after TKA (86 citations) directly informed prosthetic design improvements aimed at restoring more natural movement. Sultan also made notable strides in comparing fixed- and mobile-bearing implant kinematics (67 citations) and clarifying the controversial role of the anterior cruciate ligament following UKA (65 citations), employing sophisticated robotic testing methodologies throughout. With over 380 citations across his key publications, Sultan's research has meaningfully shaped how surgeons and engineers approach knee replacement design, particularly for patients requiring greater functional range of motion in daily life.