Our Practice

Professor Ronald Sekel

1968 Registrar in Orthopaedics
Bankstown and Sutherland Hospitals
1969 - 1970 Registrar in General Surgery
Concord Repatriation Hospital
1971 - 1973 Australian Orthopaedic Association Orthopaedic Training Scheme
1974 - 2011
(ongoing)
Visiting Medical Officer (VMO) at:
The St George Hospital and Sutherland Hospital
1981 - 1984 Registrar Training Supervisor, Orthopaedic Department
Pacific Private Hospital
Member, Sydney Southside Board of Studies
Australian Orthopaedic Association
July 1989 to
June 1992
Senior Lecturer
University of New South Wales
1995 - 2011
(ongoing)
Visiting Medical Officer (VMO) at:
St George Private Hospital
2000 - 2005 Adjunct Professor
School of Mechanical and Manufacturing Engineering
University of New South Wales
June 2005 Medal of the Order of Australia in the General Division

Current Positions Held

    • Visiting Medical Officer, The St George Hospital & St George Private Hospital
    • Visiting Medical Officer, The Sutherland District Hospital
    • Member, Australian Hip and Knee Arthritis Surgical Society (since 1990)
    • Member Arthroplasty Society of Australia
    • Senior Partner, Montgomery Orthopaedics
    • Voluntary Fire Fighter, NSW Rural Fire Brigade

Past Positions Held

  • Member, Quality Assurance Committee, The St George Hospital
  • Head of Orthopaedic Department, The St George Hospital (1996)
  • Royal Australasian College of Surgeons representative to the Red Cross Blood Bank Committee (RACOS) with a specific interest in introducing Auto transfusion techniques in Australia (1993 to 1998)
  • Founding Chairman and Chief Researcher of Portland Orthopaedics Ltd, a research, development and manufacturing company
  • Member of Selection Committee for NH&MRC Grants in Orthopaedics
  • Associate Member, Australian Rheumatology Association
  • Member, Transfusion Committee, The St George Hospital
  • Education Programme Convener for The St George Hospital Orthopaedics Skills Laboratory - an undergraduate and post-graduate teaching facility in orthopaedics Founding Chairman and Chief Researcher of Portland Orthopaedics  Ltd, a research, development and manufacturing company
  • Warden of Clinical Studies of the Fijian Orthopaedic Training Programme
  • Warden of Clinical Studies of the Papua New Guinea Orthopaedic Training Programme
  • Team Leader - Pacific Islands Project to the Cook Islands (February 1996, August 1996 and April 1997)
  • Member, Spine Society of Australia (1989 to 1999)
  • Member, Management Committee for Orthopaedic Outreach of Australia’s Arm in the South Pacific
  • President, Australasian Orthopaedic Trauma Society (1999 to 2000)
  • Director of Air Services (aircraft charter and commuter company) holding government contracts and organising the aerial health retrieval service and co-ordinating with Air Ambulance
  • Surgical Programme Convener, International Rheumatology Conference (APLAR) 1985 with 7,000 delegates
  • Representative of the Australian Orthopaedic Association to the Commonwealth of Australia’s Committee on "Surgically Implanted Prostheses and Homograft Items List"
  • Inaugural Director, New South Wales Bone Bank (1994 to 2004)

Publications

Flexor Tendon Repair in ‘No Man’s Land’ - An Experimental Study
The Hand (Volume 9, Number 2) 1977

Calcium Infusion in Painful Paget’s Disease of the Bone
The Lancet (Volume 1, Number 7799) 1973

Tc-99m MDP, Gallium-67 and TC-99m White Cell Scanning in Detection of Infected Orthopaedic Implants
P Monaghan, R McLean, G Larcos, R Smart, N Lyons, R Sekel - The St George Hospital
The Journal of Nuclear Medicine (Volume 30, Number 5) May 1989 (page 754)
Proceedings of the 36th Annual Meeting - Abstract Number 107

Multi-Focal Low Grade Osteomyelitis in an Adolescent
R McLean and R Sekel
Newsletter of Australian and New Zealand Society of Nuclear Medicine (Volume 22, Number 1) March 1991 (page 12)

Leeds-Keio versus Autologous Reconstruction of the Ovine Anterior Cruciate Ligament
G J Rogers, K Schindhelm, B K Milthorpe, P J Hall, C R Howlett, R Sekel, J Goldberg and W Viglione
The Journal of Bone and Joint Surgery (Volume 72B, Number 6) November 1990 (page 1103)
Proceedings of 49th Annual Scientific Meeting of Australian Orthopaedic Association, Canberra, September 1989

Autograft and Leeds-Keio Reconstructions of the Ovine Anterior Cruciate Ligament
K Schindhelm, G Rogers, B Milthorpe, P J Hall, C R Howlett, R Sekel, J Goldberg and W Viglione
Clinical Orthopaedic and Related Research (Number 267) June 1991 (pages 278 to 293)

Candida Albicans Infection of the Spine
R Sekel, A Loeffler and Y Mattan, The St George Hospital
The Journal of Bone and Joint Surgery (Volume 74B) 1992 (page 39)
Proceedings of Australian and New Zealand Orthopaedic Associations, Christchurch, August 1991

Arachnoiditis After Epidural Depo-Medrol:  Case Report
R Sekel
The Journal of Bone and Joint Surgery (Volume 74B) 1992 (page 79)
Proceedings of Spine Society of Australia, Canberra 4 and 5 June 1991

Total Hip Arthroplasty Complicated by Malignant Fibrous Histiocytoma:  Case Reports
M Solomon and R Sekel
The Journal of Arthroplasty (Volume 7, Number 4) December 1992 (page 549)

Morse Tapers
Mark Nabarro, S P Tan and R Sekel
The Journal of Bone and Joint Surgery (Volume 76B) 1994
Orthopaedic Proceedings - Supplement 11 and 111
Australian Orthopaedic Association, Adelaide, September 1993

An Unusual Cause of Thigh Pain after Total Hip Arthroplasty - Fascialata Herniae
J E D Higgs, A Chong, P Haertsch, R Sekel and A Leicester
The Journal of Arthroplasty (Volume 10, Number 2) 1995

Clinical Coding Study
J Callen, J McDonald and R Sekel
The University of Sydney, Faculty of Health Sciences
Current Topics in Health Sciences, 1995

Wear and Friction Properties of a Novel Carbon Alloy Surface
M J Kenny, L S Weilunski, M D Scott, R A Clissold, L Williamson and R Sekel
The Journal of Bone and Joint Surgery (BR) 1995:  77B Supplement 1
Orthopaedic Proceedings

Measurement of Periprosthetic Bone Density in Hip Arthroplasty using Dual-Energy X-ray Absorptiometry:  Reproducibility of Measurements
R C Smart, S Barbagalla, G L Slater, R S Kuo, S P Butler, R P Drummond and R Sekel
The Journal of Arthroplasty (Volume 11, Number 4) June 1996

Hip Fracture in Elderly Men:  Prognostic Factors and Outcomes
T H Diamond, S W Thornley, R Sekel and P Smerdely
Medical Journal of Australia (Volume 167, Number 8) October 1997 (pages 412 to 415)

Hip Fracture in Elderly Men:  The Importance of Subclinical Vitamin D Deficiency and Hypogonadism
T H Diamond, P Smerdely, N Kormas, R Sekel, T Vu and P Day
Medical Journal of Australia (Volume 169, Number 3) August 1998 (pages 138 to 141)

Familial Slipped Capital Femoral Epiphysis:  A Report and Considerations in Management
A Diwan, T Diamond, R Clarke, M Patel, G Murrell and R Sekel
The Australian and New Zealand Journal of Surgery (Volume 68) 1998 (pages 647 to 649)

Uncemented Hip Replacement Stem Fixation:  A New Design Trend
R Sekel
APLAR Journal of Rheumatology (Volume 2, Number 3) 3 January 1999 (pages 276 to 278)

Hip Replacement System Inspired by Lounge Chair
R Sekel interviewed by Leanda Coleman
Australian Innovation Magazine Volume 3 March-May 2001
(pages 15 to 17)

Osteotomy of the Knee - Is there a Seat at the Table?
John A.L. Hart, Ron Sekel
The Journal of Arthroplasty Vol 17 No 4 Suppl 1 2002

The Engineering Design of the Margron Femoral Hip Prosthesis System
Richard B Frost, Ronald Sekel & Leonid Kandel
Journal of Engineering Design Vol 14 No 2 June 2003
(pages 115 to 127)

Textbook:  Modulare Revisionsendoprothetik des Hueftgelenks
Hip Revision Concepts (Pg 25-32)
R Sekel, R W Eberle, B Miles
Clinical Results of the Portland Orthopaedics Margron Modular Hip System
(Pg 242-247)
R Sekel, R W Eberle
2004

Uncemented Total Hip Replacement Stem Loosening after Long Term Compressive Stress Application:  A Simulated FEA Study of Cortical Bone Remodeling
D Jung, S Tsutsumi, R Nakai, K Ikeuchi, R Sekel
JSME International Journal, Series C, Vol 47, No 4, 2004
(Pg 1079-1085)

Accelerated Corrosion Evaluation of Modular Implants:
A In-Vitro Biomechanical Study

R M Gillies, R C Appleyard, P Wingrove, D Barker, R Sekel
Proceedings of the International Federation for Medical
And Biological Engineering
Volume 12, 2005

Co-deposition of a Biphosphonate with Hydroxyapatite for Improved Implant Fixation
K E McLeod, S Kumar, G I Anderson, N Dutta,
R St C Smart, N H Voelcker, R Sekel
Proceedings of the International Federation for Medical & Biological
Engineering (Singapore)
Volume 12, Article 2B3-08 December 2004

Absorption of a Biphosphonate onto Hydroxyapatite Using a Novel
Co-deposition Technique for Bone Growth Enhancement

K McLeod, S Kumar, G Anderson, N Dutta, R Smart, N Voelcker, R Sekel
J. Biomed. Mater. Res 79A, 271 - 281 2006

XPS and Bioactivity Study of the Biphosphonate Pamidronate Absorbed onto Plasma Sprayed Hydroxyapatite Coatings
K McLeod, S Kumar, R St C Smart, N Dutta, N Voelcker, G Anderson, R Sekel
Appl. Surface Science 253, 2644-2651 2006

Distal Femoral Stem Tip Resection for Thigh Pain Complicating the Uncemented Total Hip Arthroplasty: Five Patients followed-up at 6-10 Years
L Kandel, M Kandel, R Sekel
Hip International Journal 2006:16 210-214

Research Projects and Grants

1977 Microscopic flexor tendon sheath transfer in clean-cut flexor tendons in monkeys, in conjunction with Dr Earl Owen, Prince of Wales Hospital and University of New South Wales
1978 - 1987 Kangaroo tail tendon as replacement for the anterior cruciate ligament using 40 sheep in conjunction with Dr Klaus Schindhelm, University of New South Wales, Biomedical Engineering Department
1988 - 1992 The abrasion testing, construction, preclinical testing in animal models of ion-implanted carbon composite cup, ball and stem prosthetic devices with initial emphasis on hip joints for subsequent human implant and evaluation in conjunction with the CSIRO (Division of Applied Physics), University of New South Wales (Centre for Biomedical Engineering) and The St George Hospital
Industry Research and Development Board - New Technologies Grant 15028 ($454,700)
1991 - 1992 Development of a new hip replacement - new design femoral and neck component
Industry Research and Development Board Grant 5424 ($250,00 10 July 1992 over three years)
Research workers:   Ronald Sekel, Michael Solomon, S P Tan and Richard Frost (University of New South Wales, School of Mechanical and Manufacturing Engineering)
First Margron Total Hip Replacement Inserted - 24 April 1997
1992 Successful Development of Hydroxyapatite Plasma Spray Process in conjunction with CSIRO, Division of Applied Physics -
Tony Farmer
1999 Margron Hip Replacement System - Primary, Revision and Tumour Prostheses
Portland Square Pty Ltd, New South Wales Government Grant and Federal Government Export Incentive Grant (1999 - $230,000)
2000 A Theoretical and Experimental Investigation of Stress Distribution and Remodeling of Femora Implanted with a Margron Hip Prosthesis
University of New South Wales, University of Technology,
Portland Orthopaedics Pty Ltd (three years, total 2000 $31,680)
2003       Biotechnology Innovation Fund (BIF) grant of $250,000 from
AustIndustry and $100,000 from the NSW Department of
State & Regional Development for the continued development of the Equator Plus Acetabular Cup
Portland Orthopaedics
2003 Start Grant of $2.6million to develop modular knee replacement system
Portland Orthopaedics

Milestones

1997 TGA license obtained for Margron hip replacement system
1997 - 1999 One hundred patients implanted with Margron hip replacement system and multicentre trial set up
1998 Winner, Australian Design Award for Engineering
1999 Revision Margron hip replacement system developed and manufactured
  Application for FDA and CE-mark
  Finalist Telstra and New South Wales Government Small Business Awards - AusIndustry Innovation
  Exhibitor, Australian Technology Showcase
2000 Food and Drug Administration (FDA) 510k granted for the Margron Hip Replacement System
  Manufacturing Innovation Excellence Award, April
Innovation in Engineering Design and Manufacture
  Winner, Inaugural Australian Technology Showcase Patrons' Award, May for Outstanding Achievement in International Markets
2002 C.E. Certification granted for Margron Hip Replacement System,
December
2005 C.E. Certification granted for Equator Plus Cup System
  TGA Certification granted for Equator Plus Cup System
2006 TGA Certification granted for DTC Total Hip Replacement System
(+ M-Cor Total Hip Replacement System)
  FDA 510(k) Certfication granted for Equator Plus Cup System &
M-Cor Total Hip Replacement System
2007 TGA Certification granted for Femoral Heads
  C.E. Certification granted for Femoral Heads

Lectures and Conferences

May 1985 Surgical Convener, International Rheumatology Conference, University of Sydney
August 1986 The Rush Job
Experiences of an Idiot - Slide Production by Orthopaedic Surgeons

Convener, Medical Audiovisual Workshop
St George Orthopaedic Skills Laboratory
November 1990 Thoracic Outlet Syndrome
British Cervical Spine Society Meeting
Nottingham, England
July 1991 Total Hip Replacement
Anterior Cruciate Ligament

Australian Veterinary Association Annual Conference
August 1991 A New Design Femoral Stem Prosthesis - The St George Margron Hip
Candida Albicans Infection of the Spine

R Sekel, A Loeffler and Y Mattan
Combined Meeting of the Australian Orthopaedic Association and New Zealand Orthopaedic Association
Christchurch, New Zealand
March 1992 Total Knee Replacement - The Operation
Who Deserves Total Knee Replacement
Results/Complications in Total Knee Replacement
Infection in Total Knee Replacement
The Patella in Total Knee Replacement
Revision Total Knee Replacement
Invited guest and keynote speaker, Chinese
Orthopaedic Association Annual Conference  
June 1993 Who Deserves Total Knee Replacement?
Results and Complications of Total Knee Replacement
Revision Total Knee Replacement
The Patella in Total Knee Replacement

Invited guest lecturer to India (Pune) by Indian Rheumatology Association
September 1993 Poster:  A New Biomaterial - Diamond-like Coating of Graphite Carbon R Sekel, I Pollack and K Schindhelm
53rd Annual Scientific Meeting, Australian Orthopaedic Association, Adelaide
December 1993 A New Biomaterial
Thoracic Outlet Syndrome

Israeli Orthopaedic Association Annual Conference
January 1994 Poster: Plasma Spray Coating of Hydroxyapatite in Orthopaedics
Australian Society for Biomaterials, Coogee
April 1999 The St George Margron Total Hip Replacement System
Poster: The St George Margron Total Hip Replacement Stem - A Double Thread/Tapered Cone
SICOT Sydney
May 1999 Stem Shortening in Total Hip Replacement
The Sweet Spot
The Engineering Design Concepts of Stem
Arthroplasty Society of Australia Closed Scientific Meeting, Noosa
November 2000 Development of an Australian Designed Hydroxypatite Coated Hip Prosthesis
K A Gross
, S Gulizia, T N Farmer and R Sekel
International Hydroxyapatite Conference, Melbourne
March 2001 The Double Threaded Cone Modular Hip Replacement System as a Primary Prosthesis - Three Year Follow Up

Poster:  The Double Threaded Cone Modular Hip Replacement System Used as a Revision & Tumour Prosthesis
R Sekel
Asia Pacific Orthopaedic Association 13th Triennial Congress, Adelaide
May 2001 A Proximal/Distal Fixation Alternative - The Double-Threaded Cone Hip Stem
R Sekel

Osteotomy 2001:  A Seat at the Table?
J Hart, R Sekel
Current Concepts in Joint Replacement
Las Vegas, Nevada, U.S.A.
Aug 2001 Hip Replacement Using a Double-Threaded Cone-Shaped Modular Femoral Stem
R Sekel, L Kandel, R Powell, I Woodgate
SICOT/SIROT XXI World Congress
Paris, France
Sept 2001 The Engineering Principles of the Double-Threaded Cone Stem Hip Replacement
R Sekel
, R Frost, L Kandel
Monash University Material Services Engineering Materials Conference
Melbourne University
Oct 2002 Immediate Torsional Locking Strength of the HA Coated Double Threaded Cone Hip Stem
R Sekel,
R Frost, L Kandel, R Damle
Annual Scientific Meeting of the Australian Orthopaedic Association, Melbourne
Dec 2002 The HA Coated Double Threaded Cone Stem Hip:
A Longitudinal 5 Year Dexa Study
R Debi,
R Sekel
Bioceramics 15:  15th International Symposium on Ceramics in Medicine
U.T.S., Sydney
Jan 2003 Strength & Modularity in the Recent Wave of Total Hip Replacements
R Sekel
Invited Guest Lecturer at:
Grand Rounds St Raphaels, New Haven (associated with Yale)
Grand Rounds Institute of Bone & Joint Disorders, Phoenix
X-ray Meeting Tampa General Hospital, Tampa
Grand Rounds University of Mississippi, Mississippi
May 2003 Femoral Revision with a Double Threaded Femoral Component
R Sekel, R Debi
Strength & Modularity in THR

R Sekel
Minimal Invsasive Surgery Using the DoubleThraded Cone System
R Sekel
7th Annual Closed Meeting of the Arthroplasty Society of Australia, Launceston
July 2003 A New Designed Acetabular Cup - Initial Strength
Evaluation Using Finite Element Analysis
D Y Jung
, S Tsutsumi, R Sekel, R Frost, K Ikeuchi, P Wingrove
IASTED International Conference on Biomechanics
Rhodes, Greece
March 2004 Scientific Exhibit - Strength and Modularity:  Engineering for Successful
And Durable Modular Femoral Components for Revision THA

R Sekel, P Wingrove, R Debi, B Miles, R Eberle
Poster - Strength and Modularity:  Engineering for Successful and Durable Modular Femoral Components in THA
R Sekel, P Wingrove, R Debi, B Miles, R Eberle
American Academy of Orthopaedic Surgeons
San Francisco, U.S.A.
Oct 2004 Revision THA Using a Non-Cemented, Double Threaded, Cone Shaped, Modular Femoral Component
R Sekel, L Kandel, R Debi, R Eberle, W Lanzer, A McPherron
Primary and Revision THA in Patients with Small Femoral Morphometry
R Sekel, R Eberle, M Richardson, W Lanzer, D Gibson, L Kwong, B Mallin, A Infante
Minimal Invasive THR Surgery Via the Posterior Approach
R Sekel, R Debi, R Kardosh
Poster:  Periprosthetic Bone Mineral Density Changes Following Primary THA Using a Double Threaded, Cone Shaped Femoral Component: Intermediate Follow-up Results
R Sekel, L Kandel, R Debi, R Kardosh, R Eberle
11th Meeting of the Combined Orthopaedic Associations
Sydney
Feb 2005 Prospective Periprosthetic BMD Changes Following Primary THA:  60 Month Follow-up Results
R Sekel, R Debi, R Eberle  (Scientific Exhibit & Poster)
72nd Annual American Academy of Orthopaedic Surgeons
Washington, U.S.A.
Oct 2005 Accelerated Corrosion Evaluation of Modular Impants:  An Invitro Biomechanical Study
R Appleyard, P Wingrove, D Barker, R Sekel, R Gillies
AOA Science Programme, Perth
Oct 2005 International Society for Technology in Arthroplasty
18th Annual Symposium
Kyoto, Japan
A Computational Prediction of Periprosthesis Bone-
Remodelling in Relation to Bony Ingrowth After Primary Cementless Hip Arthoplasty

D Jung, S Tsutsumi, R Nakai, K Ikeuchi, R Sekel
Sept 2007 Arthroplasty Society of Australia
Annual Scientific Meeting
South Kingscliff
The 10 Year Results of the Margron DTC Hip System
R Sekel
Total Hip Arthroplasty in Femora with Narrow Canals
R Sekel, G Vogel
Ceramic Liner Deflection with Different Impaction Force
P Wingrove, R Sekel
Oct 2007 Designing a Prosthesis - Interfacing Engineering & Medicine
University of New South Wales
- 2nd Year Engineering
May 2008 Early Results of a Modular Hip Replacement System
Arthroplasty Society Meeting - Canberra
Sept 2008 How the development of Portland Orthopaedics benefited from Engagement with CSIRO & its partners
CSIRO, Department of State & Regional Development, City of Ryde & Australian Nano Business Forum
Nov 2011 Septic Arthritis:  Approach to Surgical Management
Department of Immunology - St George Hospital

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The University of SydneyThe University Of New South Wales
Spine Society of AustraliaAustralian Orthopaedic Association
Australian Private Hospitals AssociationFRACS - Fellowship of the Royal Australasian College of Surgeons