The Orthopaedic team consists of three New Zealand trained surgeons. Each is a Fellow of the Royal Australasian College of Surgeons and have undertaken extensive postgraduate training at international centres of excellence. In addition to the consultant surgeons, the team also has two orthopaedic fellows, who are recently qualified orthopaedic consultants furthering their interest in the area of Sports Medicine.

The Orthopaedic Surgeons will be able to offer a comprehensive clinical program for the treatment of acute and chronic injuries to tendons, bones and joints caused by participation in sports or exercise. Depending on the injury, it may be managed in a conservative manner or require surgery. If an operation is needed then our Orthopaedic Surgeons will be able to carry out the procedure at one of the four hospitals in Auckland which are utilised by our clinic.

Our Orthopaedic Surgeons are highly specialised and are at the forefront in the diagnosis and treatment of knee, ankle and shoulder injuries. Their areas of expertise include:

  • Arthroscopic surgery
  • Meniscal / cartilage surgery
  • Ligament reconstruction surgery, especially anterior cruciate ligament (ACL)
  • Shoulder reconstruction surgery
  • Rotator cuff repair
  • Tendon surgery and reconstruction

A referral from a Sports Physician or General Practitioner is needed before an appointment with the orthopaedic consultant can be made.

Book An Appointment

Orthopaedic Consultants

Meet our talented team of Orthopaedic Consultants on board at UniSports.

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Mr Stewart Walsh

Orthopaedic Consultant, MBChB, FRACS

Ph: (09) 521 9817 , Fax: (09) 521 9840

Stewart is also one of the founding partners of UniSports Sports Medicine. In addition to his Sports Orthopaedic practice at UniSports Sports Medicine he works at Starship Childrens Hospital in Paediatric Orthopaedics.

  • Fellowships completed in knee surgery, paediatric orthopaedics and sports orthopaedics, in Auckland, British Columbia, Dallas, Texas and Dublin
  • 1996 recipient of the Western Pacific Orthopaedic Association Sports Medicine Travelling Fellowship to Europe
  • Lecturer, Department of Orthopaedics, University of Auckland
  • Sports orthopaedics is not restricted to one particular joint, but is in all general sports-related problems
  • Research interests include anterior ankle impingement syndrome.


Mr Bruce Twaddle

Orthopaedic Consultant, MBChB, FRACS

Ph: (09) 521 9814 , Fax: (09) 521 9840

Bruce has been in the United States in a position at the University of Washington but has returned to New Zealand and has begun consulting again.

Bruce joined the UniSports Medicine partnership in 1996. He is an orthopaedic surgeon with subspecialty training in Sports Surgery. Bruce is also the head of trauma at Auckland City Hospital. He is experienced with all soft tissue and joint injuries of the knee, shoulder, elbow, foot and ankle.

  • Fellowships completed in knee surgery, orthopaedic trauma, and sports orthopaedic surgery, in Auckland, Washington and Ontario.
  • 1998 recipient of the Western Pacific Orthopaedic Association Sports Medicine Travelling Fellowship to USA.
  • Lecturer, Department of Orthopaedics, University of Auckland
  • Consultant Orthopaedic Surgeon to the 2011 ANBL Champion New Zealand Breakers Basketball Team
  • Author of many orthopaedic and sports medicine book chapters.
  • Research interests: ongoing research and publications relating to the knee, ankle, and achilles tendon injury and treatment.

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Mr Jeremy Stanley

Orthopaedic Consultant, BHB, MBChB, FRACS

Ph: (09) 521 9848 , Fax: (09) 521 9840

Jeremy returns to Unisports having completed the fellowship here in 2012.  He is currently working at Starship Childrens Hospital as a general orthopedic surgeon with a special interest in sports injuries.

  • Unisports fellowship in sports medicine, Auckland 2012
  • Paediatric fellowship at Starship Childrens Hospital, Auckland 2012
  • Paediatric fellowship at Royal Childrens Hospital, Melbourne 2013
  • Orthosports Victoria Knee surgery fellowship, Melbourne 2013

Jeremy has a unique insight into the understanding of sports injuries and the demands placed on professional athletes having played rugby for the All Blacks, Auckland Blues and Otago Highlanders. He has also played softball for the New Zealand Black Sox and captained the Samoan softball team in the World Series hosted in Christchurch in 2004

Jeremy’s reseach interests include paediatric sports injuries and musculoskeletal infection as well as high tibial osteotomy in the osteoarthritic knee.

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Mr Matt Debenham

Orthopaedic Consultant, FRACS (Orth), MBChB, BMedSc

Ph: (09) 521 9856 , Fax: (09) 521 9840

Matt returned to Unisports in late 2015.  He sub-specialises in lower limb disorders treating conditions of the hip, knee, foot and ankle.

After completing orthopaedic training in New Zealand Matt undertook further subspecialty training in NZ, Australia and the United Kingdom. He also spent time visiting surgeons in North America and Europe to gain more knowledge and experience. His subspecialty expertise encompasses:

  • Sports surgery
  • Foot & Ankle surgery
  • Paediatric orthopaedic surgery
  • Arthroplasty (Joint replacement surgery, including hip, knee & ankle)

He can perform traditional open surgery, arthroscopy and newer percutaneous surgical techniques where appropriate. 

Private surgery is performed at Auckland Surgical Centre and Ascot Hospital.

Since 2012 he has worked as a Consultant Orthopaedic Surgeon at Middlemore Hospital where he is involved in acute and elective surgery as well as the training of future doctors and surgeons.

Current research interests include patient reported outcome measures.  These are one of the ways to more objectively quantify a patient’s difficulties and follow their progress over time and with treatment.  He also maintains an interest in contemporary joint replacement implants, their designs and failure mechanisms.

Specialist Orthopaedic Surgery Training:

New Zealand Orthopaedic Training Program 2006-2009, culminating in

  • Fellowship of Royal Australasian College of Surgeons (FRACS)
  • Fellowship of the New Zealand Orthopaedic Association

Subspecialist Orthopaedic Training:

  • Arthroplasty, Dunedin & Middlemore Hospitals, 2010
  • Sports & Arthroplasty, Sportsmed South Australia, 2011
  • Foot & Ankle, Brisbane Foot & Ankle Centre, 2011-2012
  • Paediatric Orthopaedics, ‘Yorkhill’, The Royal Hospital for Sick Children Glasgow 2014-2015

Undergraduate Training:

Bachelor of Medicine & Bachelor of Surgery, University of Otago, 1999

Awarded the David Whyte memorial prize in Clinical Surgery (Wellington School of Medicine) and the Stanley Batchelor memorial prize in Surgery, (University of Otago).

Bachelor of Medical Science (Distinction), University of Otago, 1997

This research degree investigated the molecular genetics of a neurologic disorder.  Around the same period Matt did further laboratory research into the molecular biology of blood clotting disorders.


Mr Michael Rosenfeldt

Orthopaedic Consultant, MBChB, FRACS

Ph: (09) 521 9857 , Fax: (09) 521 9840

Michael is a fellowship trained knee and shoulder surgeon. After completing orthopaedic training in New Zealand, Michael spent several years in Europe, specializing in knee and shoulder surgery.

Michael has a keen interest in sport and has a great experience, both in New Zealand and overseas, in the care of elite athletes. He has a special interest in ACL and multiligament injuries of the knee.

Since 2012, he has been the consultant orthopaedic surgeon for the New Zealand Breakers basketball team.

In 2014, Michael was awarded the Asia-Pacific Knee, Arthroscopy and Sports Medicine Society Travelling Fellowship to the American Orthopaedic Society for Sports Medicine.

As well as Unisports, Michael works at the Eastwood Orthopaedic Clinic and is a Consultant Surgeon, at Counties Manukau DHB.

Michael’s subspecialty expertise encompasses:

  • Knee surgery
  • Shoulder surgery
  • Arthrosplaty (Knee Joint Replacement)

Private surgery is performed at Auckland Surgical Centre and Southern Cross Brightside Hospital.

Post-fellowship Training

  • Unisports Knee and Sports Surgery Fellowship, Auckland, New Zealand
  • The Chelsea Knee Reconstruction Fellowship, London, United Kingdom
  • The Calvert Shoulder Fellowship, London, United Kingdom
  • Shoulder Fellowship, Cremona, Italy

Visiting Fellow European Knee Surgeons

  • Centre Albert Trillat, Lyon, France
  • Ghent University Hospital, Ghent, Belgium
  • Clinique du Sport, Bordeaux, France

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Mr Paul Monk

Orthopaedic Consultant, FRCS (Tr+Orth), DPhil (Oxon), MBBS, MSc, BSc (Hons)

Ph: (09) 521 9853 , Fax: (09) 521 9840

Paul returns to Unisports having completed the fellowship here in 2017.

He is an Associate Professor at the University of Auckland and a consultant orthopaedic surgeon at Auckland City Hospital specialising in general sports related problems, Hip and Knee orthopaedic surgery. Paul has an international reputation for clinical, research and development work in this field leading a team of clinical scientists who undertake biomechanical and clinical studies related to the knee, hip and shoulder. This team is the most productive in the field in NZ and one of the most influential in the world.

Following training as an Orthopaedic surgeon in Oxford UK, he was awarded his doctorate in orthopaedic implant design from St. Johns College, Oxford and was later the NIHR Lecturer at the University of Oxford.

Paul holds the Army rank of Major in the Parachute Regiment and deployed to Helmand province as a combat trauma surgeon during the Afghanistan conflict.

A sports enthusiast outside of work, he has represented Great Britain and New Zealand at triathlon at the Age Group World Championships.

At Unisports he is happy to see your patients with general sports orthopaedic problems, and all hip and knee patients covering the spectrum from trauma, arthroscopic surgery and joint replacement.