Leadership Roles

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


  1. Minnesota


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


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


  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

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 a listing of publications on PubMed, a service of the National Library of Medicine.


See a description of research activities.


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