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About

Benoit Coulin is an orthopaedic surgeon and researcher whose work is reshaping how surgeons think about alignment and joint reconstruction in total knee and hip arthroplasty. His research centers on the interplay between surgical alignment philosophy—particularly kinematic versus mechanical alignment—and the recreation of native anatomy. In a landmark 2022 study using image-based robotic technology, Coulin demonstrated that alignment philosophy directly influences the ability to restore trochlear anatomy in total knee arthroplasty, a finding with profound implications for patellofemoral function and patient outcomes. That work, cited 46 times, has become a reference point for surgeons seeking to move beyond one-size-fits-all alignment strategies. Coulin has also shown, in a 33-citation study, that robotic-assisted total hip arthroplasty via the direct anterior approach yields superior acetabular cup orientation and center-of-rotation restoration compared to conventional techniques. Most recently, he has challenged the traditional concept of patellofemoral “over-stuffing,” offering a refined framework for balancing the patellofemoral joint. By combining robotic precision with a deep commitment to restoring individual anatomy, Coulin is helping to define a new standard for joint replacement that prioritizes function and longevity.