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Prof Lo Ngai Nung

Prof Lo Ngai Nung

​MBBS, M Med (Surg), FRCS (Edin), FAMS

Senior Consultant


​Prof Lo completed a fellowship in Joint Replacement in Minneapolis, USA with Prof Ramon Gustilo and returned to head the Adult Reconstruction Service of the Department of Orthopedics Surgery, SGH in 1995. 

Prof Lo and his team had been instrumental in making SGH one of the leading centers in the Asia-Pacific region for joint replacement surgery. His special interests are in minimally invasive joint replacement surgery and in computer-guided joint replacement surgery, and he has presented and published extensively on these topics internationally. Some minimally invasive knee replacement instruments and implants that he has been involved in the development of are presently used worldwide.

He has been invited to conduct many courses in minimally invasive joint replacement surgery and in computer-aided orthopedic surgery, for orthopedic surgeons in the Asia-Pacific region. He was also the organising chairman of 2nd Asia Computer Aided Orthopaedic Navigation Congress 2005 (CAOS 2005) held in Singapore. For his contributions, he received the 2004 SGH CEO’s Service Quality Award and the NUS 2002-2004 Excellence in Orthopaedic Teaching Award. Among his honorary appointments are visiting Professor in Orthopaedics to Ningxia Medical College, Ningxia, China and Emeritus Consultant in Orthopaedics to Liaocheng People’s Hospital, Shandong, China.


  • MBBS, National University of Singapore, 1983 (with distinction in Biochemistry) 
  • Fellow of the Royal College of Surgeons (Edinburgh), 1988
  • Masters in Medicine (Surgery), National University of Singapore, 1988
  • Foreign Medical Graduates Examination in Medical Sciences, 1990
  • Adult Reconstruction Fellowship, Hennepin Country Medical Centre, Minneapolis, Minnesota, USA, 1992 - 1993
  • Orthopaedic Surgery Exit Certification, Orthopaedic Surgery Board, Academy of Medicine of Singapore, 1994

Professional Appointments and Committee Memberships

  • Clinical Tutor, Royal College of Surgeons, Edinburgh. 
  • Clinical Senior Lecturer, National University of Singapore.
  • Visiting Lecturer, (NTU-SGH Collaboration) Nanyang Technological University.
  • Visiting Lecturer, (Biomechanics MSC Course) Nanyang Technological University.
  • Specialist Volunteer, Arthroplasty Project in Vietnam, Singapore International Foundation.
  • Volunteer Doctor, Bright Hill Evergreen Home.
  • Visiting Consultant, Changi General Hospital
  • Member of the Ministry of Health(Singapore) Workgroup To Formulate the Clinical Practice Guidelines on Joint Inflammation and Osteoarthritis, 2005 - Present.
  • Member of Zimmer Design Team - Minimally Invasive Total Knee Replacement Implants Committee 2003 - Present.
  • Course Convenor: Minimally Invasive UKA and THR workshop, Singapore, 2003 - Present.


Research Interests


  • Randomized Control Trial Comparing Radiographic Total Knee Arthroplasty Implant Placement Using Computer Navigation Versus Conventional Technique. Chin P L, Yang K Y, Yeo S J, Lo N N. J Arthroplasty 20(5):618-26, 2005 
  • Are They Relevant? A Critical Evaluation of the International Classification of Functioning, Disability and Health Core Sets for Osteoarthritis from the Perspective of Patients with Knee Osteoarthritis in Singapore. Xie F, Thumboo J, Fong K Y, Lo N N, Yeo S J, Yang K Y, Li S C. Ann Rheum Dis 65(8):1067-73, 2006. Epub 2006 Jan 5. Osteoarthritis Cartilage 15(1):19-26, 2007. Epub 2006 Jul 31.
  • Direct and Indirect Costs of Osteoarthritis in Singapore: A Comparative Study Among Multiethnic Asian Patients with Osteoarthritis. Xie F, Thumboo J, Fong K Y, Lo N N, Yeo S J, Yang K Y, Li S C. J Rheumatol. 34(1): 165-171, 2007
  • Septic Arthritis of The Knee Due To Burkhoderia Pseudomallei. Nuttaya Puttamapaspong, Wilfred C G Peh, Tan B H, Wong M K, Lo N N. European Journal of Radiology Extra 61: 95-99, 2007
  • Comparison of the EuroQol and short form 6D in Singapore multiethnic Asian knee osteoarthritis patients scheduled for total knee replacement. Xie F, Li S C, Luo N, Lo N N, Yeo S J, Yang K Y, Fong K Y, Thumboo J. Arthritis Rheum. Aug 15;57(6):1043-9, 2007
  • Randomized controlled trial comparing the radiologic outcomes of conventional and minimally invasive techniques for total knee arthroplasty. Chin P L, Foo L S, Yang K Y, Yeo S J, Lo N N. J Arthroplasty. 22(6):800-6, 2007. Epub 2007 Apr 20.
  • Validation of the Comprehensive ICF Core Set for Osteoarthritis (OA) inpatients with knee OA: a Singaporean perspective. Xie F, Lo N N, Lee H P, Cieza A, Li S C. J Rheumatol. 34(11):2301-7, 2007. Epub 2007 Oct 15.
  • Computer-Assisted Minimally Invasive Total Knee Arthroplasty Compared With Standard Total Knee Arthroplasty. A Prospective, Randomized Study. Dutton A Q, Yeo S J, Yang K Y, Lo N N, Chia K U, Chong H C. J Bone Joint Surg Am. Jan;90(1):2-9, 2008.

Research Trials