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Olufemi R. Ayeni MD is an Associate Professor of Orthopaedic Surgery at McMaster University.  Dr Ayeni completed his Orthopaedic Surgery residency training at McMaster University.  Following this, he completed 2 years of additional Sports Medicine Fellowship Training, first at the University of Ottawa/Carleton Sports Medicine Clinic (Sports Medicine and Knee Surgery) under the direction of Donald H. Johnson MD and then at the Hospital for Special Surgery/Weill Cornell Medical Center, New York (Sports Medicine and Shoulder Surgery).  While in New York, Dr Ayeni was the Assistant Team Physician for the New Jersey Nets (NBA) and Iona College (NCAA).  Also, in New York, he received dedicated training in Hip Arthroscopy under the direction of Bryan T. Kelly MD.  In his first year of practice, Dr Ayeni spent a month in Europe as a Visiting Fellow in Hip Preservation and Hip Arthroscopic Surgery at the Schulthess Clinic in Zurich, Switzerland and at Orthopadische Chirurgie Munchen in Munich, Germany. Dr Ayeni’s clinical practice focuses on athletic injuries and non-arthritic conditions of the hip, knee and shoulder in adolescents and adults.  His research focus is on Outcomes Research in Sports Medicine and Arthroscopic Surgery.


Professional Organizations

  • The Royal College of Physicians and Surgeons of Canada
  • The Canadian Orthopaedic Association
  • Canadian Academy of Sports Medicine
  • Arthroscopy Association of North America
  • American Orthopaedic Society for Sports Medicine
  • American Academy of Orthopaedic Surgeons

Featured Publications

  • Ayeni OR, Chahal M, Tran MN, Sprague S. Pivot shift as an outcome measure for ACL reconstruction: a systematic review. Knee Surg Sports Traumatol Arthrosc. 2012 Jan 5.
  • ISAKOS Scientific Committee, Audigé L, Ayeni OR, Bhandari M, Boyle BW, Briggs KK, Chan K, Chaney-Barclay K, Do HT, Ferretti M, Fu FH, Goldhahn J, Goldhahn S, Hidaka C, Hoang-Kim A, Karlsson J, Krych AJ, LaPrade RF, Levy BA, Lubowitz JH, Lyman S, Ma Y, Marx RG, Mohtadi N, Marcheggiani Muccioli GM, Nakamura N, Nguyen J, Poehling GG, Roberts LE, Rosenberg N, Shea KP, Sohani ZN, Soudry M, Voineskos S, Zaffagnini S; International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine. A practical guide to research: design, execution, and publication. Arthroscopy. 2011 Apr;27(4 Suppl):S1-112.
  • Ayeni OR, Bedi A, Lorich DG, Kelly BT. Femoral neck fracture after arthroscopic management of femoroacetabular impingement: a case report. J Bone Joint Surg Am. 2011 May 4;93(9):e47.
  • Marx RG, Grimm P, Lillemoe KA, Robertson CM, Ayeni OR, Lyman S, Bogner EA, Pavlov H. Reliability of lower extremity alignment measurement using radiographs and PACS. Knee Surg Sports Traumatol Arthrosc. 2011 Oct;19(10):1693-8.
  • Ayeni OR, Busse JW, Bhandari M. Using extracorporeal shock-wave therapy for healing long-bone nonunions. Clin J Sport Med. 2011 Jan;21(1):74-5.
  • Musahl V, Ayeni OR, Citak M, Irrgang JJ, Pearle AD, Wickiewicz TL. The influence of bony morphology on the magnitude of the pivot shift. Knee Surg Sports Traumatol Arthrosc. 2010 Sep;18(9):1232-8..
  • Bhandari M, Busse JW, Hanson BP, Leece P, Ayeni OR, Schemitsch EH. Psychological distress and quality of life after orthopedic trauma: an observational study. Can J Surg. 2008 Feb;51(1):15-22.
  • Bhandari M, Sprague S, Ayeni OR, Hanson BP, Moro JK. A prospective cost analysis following operative treatment of unstable ankle fractures: 30 patients followed for 1 year. Acta Orthop Scand. 2004 Feb;75(1):100-5.
  • Hampson LG, Fried GM, Stets J, Ayeni OR, Bourdon-Conochie F. Common bile duct exploration: indications and results. Can J Surg. 1981 Sep;24(5):455-7.
  • Chiu RC, Ayeni OR, Stets J, Blundell PE, Mulder DS, Scott HJ. Iatrogenic false aneurysms. Can J Surg. 1981 Mar;24(2):160-2.
  • Fried GM, Ayeni OR, Brown RA, Lough J. Recurrent obstipation as a complication of partial pancreatectomy for non-beta cell adenoma of the pancreas. Can J Surg. 1979 Jul;22(4):354-5.


  • B.A., University of Western Ontario
  • M.D., University of Ottawa
  • F.R.C.S.(C)
  • Sports Medicine and Knee Surgery Fellowship, Carleton Sports Medicine Clinic, University of Ottawa
  • Sports Medicine and Shoulder Surgery Fellowship, Hospital for Special Surgery (USA)
  • Hip Preservation and Arthroscopy Fellowship, Schulthess Clinic (Dr Michael Leunig) & Orthopaedic Surgery Munich (Dr Michael Dienst)

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