Leadership Roles

  1. Vice Chair, Minnesota
  2. Co-director, Sports Medicine, Minnesota


  1. Minnesota


  1. Children's Center
  2. Sports Medicine
  3. Pediatric and Adolescent Medicine
  4. Orthopedic Surgery


  1. Fellow - Sports Medicine University of Western Ontario
  2. Fellow - Orthopedic Surgery Mayo Graduate School of Medicine, Mayo Clinic College of Medicine
  3. MD Rush Medical College
  4. BA DePauw University


  1. Immediate Post-concussion Assessment and Cognitive Testing (ImPACT)
  2. Arthroscopy Association of North America
  3. American Orthopedic Society for Sports Medicine
  4. Sports Medicine, Certificate of Added Qualification, American Board of Orthopaedic Surgery
  5. Diplomate, American Board of Orthopaedic Surgery

Primary Appointment

  1. Orthopedic Surgery

Academic rank

  1. Professor of Orthopedics

Professional Highlights

  • Physician, U.S.A. Men's Olympic Team, 2010
  • Member, Sports Medicine Education Committee, American Orthopaedic Society, 2008-present
  • Member, Medical Committee, International Ice Hockey Federation, 2005-present
  • Consultant, National Hockey League (NHL) Players Association, 2004-present
  • Chief Medical Officer, U.S.A. Hockey, 2001-present


  • Lower extremity biomechanics
  • Knee ligament reconstruction
  • Epidemiology of sports injuries
  • Rehabilitation following knee ligament injury/surgery
  • Unicompartmental & total knee arthroplasty
  • Proximal tibial osteotomy
  • Meniscus & osteochondral allograft transplantation
  • Multi-ligament knee injuries


See my publications


See a description of research activities.


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