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About

Lars Engebretsen is a distinguished orthopedic surgeon and researcher whose career has been defined by a rigorous pursuit of biomechanical precision in knee ligament surgery. His work centers on the anatomy and reconstruction of the knee's complex ligamentous structures, with particular emphasis on the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), medial collateral ligament (MCL), and associated meniscal attachments. Engebretsen's most influential contributions include landmark biomechanical investigations into PCL bundle function and reconstruction techniques, which together have accumulated over 500 citations, fundamentally shaping how surgeons approach single- versus double-bundle PCL repair. His widely cited 2018 study on meniscocapsular and meniscotibial ramp lesions — garnering 230 citations — has meaningfully advanced understanding of how posterior medial meniscus injuries compromise knee stability in both ACL-deficient and reconstructed knees. Beyond individual structures, Engebretsen has championed the philosophy of anatomic reconstruction, arguing persuasively that restoring native ligament geometry is essential for recovering natural joint kinematics. His comparative ACL reconstruction studies and work on anterolateral ligament overconstraint reflect a commitment to translating anatomical science into safer surgical practice. His body of work remains essential reading for orthopedic surgeons and sports medicine researchers worldwide.