The Orthopaedic Surgery Department brings together surgeons from different specialties with a common interest in improving the diagnosis and management of musculoskeletal diseases and injuries.

We are currently conducting research into hip and knee replacement, frozen shoulder, rotator cuff tendon disease, acute spinal injuries, musculoskeletal trauma and hand tendon dysfunction and repair.


Professor Bill Walter Professor Bill Walter

Professor of Orthopaedics and Traumatic SurgeryThe University of Sydney & Northern Local Area Health District (Royal North Shore Hospital). To Prof Bill Walter, Orthopaedics.

Dr Myles Coolican – Visiting Medical Officer

Dr David Parker – Visiting Medical Officer

Sagittal stability in total knee replacement

Goal: Total knee replacement may be stable or unstable in the sagittal plane. Sagittal stability can be measured by Lachman test, anterior drawer KT1000. Sagittal stability is an important factor determining reported outcomes and function.

Comparison of kinematics of two different implant designs after total knee arthroplasty

Kinematics of a medial ball and socket and a single radius cruciate retaining total knee arthroplasty designs were compared using KneeKG in this study.

Proximal femoral anatomy

Re: Assessment of the proximal femoral morphology using plain radiograph – Can it predict the bone quality?

Professor Bill Walter

  • Hayasaka S, Newman C, Walter WL, Talbot S. (2019) Coronal tibial alignment is linked to femoral rotational asymmetry: Implications for total knee arthroplasty surgery. The Knee 26(2): 435-443. [more information]
  • McKenna RM, Jack CM, Walter WK, Zicat B, Walter WL. (2019) Limited femorotomy – Removing a well fixed cementless stem. Seminars in Arthroplasty 29(3): 188-190. [more information]
  • Katchky A, Jones CW, Walter WL, Shimmin AJ. (2019) Medial ball and socket total knee arthroplasty: Five-year clinical results. The Bone and Joint Journal 101-B(1) Supple A: 59-65. [more information]
  • Walter WL (2018) Medial pivot designs avoid the need for ligament balancing – Affirms. Supple 10: 95.
  • Jacobs HW, McKenna RM, Walter WL. (2018) Hip resurfacing: What does the Australian National Joint Registry say? Seminars in Arthroplasty 28(4): 233-238. [more information]
  • McKenna RM, Jacobs HW, Walter WL. (2018) Ceramic on ceramic bearings: Assured longevity in patients younger than 60 years? Seminars in Arthroplasty 28(4): 231-232. [more information]
  • Newman C, Walter WL, Talbot S. (2018) Femoral rotational asymmetry is a common anatomical variant. Clinical Anatomy 31(4).
  • Goldhofer M, Munir S, Levy Y, Walter WK, Zicat B, Walter WL. (2018) Increase of benign squeaking rate at 5-year follow-up: Results of a large diameter ceramic-on-ceramic bearing in total hip arthroplasty (blinded). The Journal of Arthroplasty 33(4): 1210-1214. [more information]
  • Shah SM, Munir S, Walter WL. (2017) Changes in spinopelvic indices after hip arthroplasty and its influence on acetabular component orientation. Journal of Orthopaedics 14(4): 434-437. [more information]
  • Chow J, Pearce S, Cho K-K, Walter WL. (2017) Direct anterior approach using navigation improves accuracy of cup position compared to conventional posterior approach. Cureus 9(7): e1482. [DOI: 10.7759/cureus.1482]
  • Levy Y, Walter WL. (2017) Complications of ceramic-on-ceramic bearings: Fracture, stripe wear, and squeaking. In: Complications after primary total hip arthroplasty: A comprehensive clinical guide. pp. 137-150. [DOI: 10.1007/978-3-319-54913-2_14]
  • Shah SM, Walter WL, Ngo J. Is the pelvis stable during supine total hip arthroplasty? Acta Orthopaedic Belgica 83(1): 81-86.
  • Shah SM, Walter WL, Tai S, Lorimer M, de Steiger R. (2017) Late dislocations after total hip arthroplasty: Is the bearing a factor? The Journal of Arthroplasty 32(9): 2852-2856. [more information]
  • Parkes M, Sayer K, Goldhofer M, Cann P, Walter WL, Jeffers J. (2017) Zirconia phase transformation in retrieved, wear simulated, and artificially aged ceramic femoral heads: Phase transformation in retrieved ceramics. Journal of Orthopaedic Research 35(12). [more information]

Dr Myles Coolican

  • Figueroa F, Mhaskar V, Scholes C, Pearlman A, Coolican M, Parker D, Fritsch B. (2018) Symptomatic relief in medial opening wedge high tibial osteotomies for the treatment of knee osteoarthritis is influenced by concurrent procedures and preoperative pain level. JISAKOS 3: 8-16. [more information]
  • Dhurve K, Scholes C, El-Tawil S, Shaikh A, Lai KW, Levin K, Fritsch B, Parker D, Coolican M. (2017) Multifactorial analysis of dissatisfaction after primary total knee replacement. The Knee 24(4): 856-862. [more information]
  • Fritsch BA, Dhurve K, Scholes C, El-Tawil S, Molloy A, Parker DA, Coolican M. (2017) Multifactorial analysis of patient dissatisfaction after TKR – The influence of psychological factors. The Orthopaedic Journal of Sports Medicine 5(5) Suppl 5. DOI: 10.1177/2325967117S00168

Dr David Parker

  • Beach A, Regazzola G, Neri T, Verheul R, Parker D. (2019) The effect of knee prosthesis design on tibiofemoral biomechanics during extension tasks following total knee arthroplasty. The Knee. [more information]
  • Neri T, Myat D, Parker D. (2019) The Use of Navigation in Osteotomies Around the Knee. Clinics in Sports Medicine. 38. 451-469. [more information]
  • Putnis S, Neri T, Grasso S, Linklater J, Fritsch B, Parker D. (2019) ACL hamstring grafts fixed using adjustable cortical suspension in both the femur and tibia demonstrate healing and integration on MRI at one year. Knee Surgery, Sports Traumatology, Arthroscopy pp 1-9. 17 June 2019. DOI: 10.1007/s00167-019-05556-6
  • Twiggs JG, Edgar A, Wakelin B, Fritsch BA, Liu DW, Solomon MI, Parker DA, Klasan A, Miles BP. (2019) Clinical and statistical validation of a probabilistic prediction tool of total knee arthroplasty outcome. The Journal of Arthroplasty. 13 June 2019 [more information]
  • Klasan A, Putnis SE, Yeo WW, Fritsch BA, Coolican MR, Parker DA. (2019) Advanced age is not a barrier to total knee arthroplasty: A detailed analysis of outcomes and complications in an elderly cohort compared to average age TKA patients. The Journal of Arthoplasty 34(9): 1938-1945. [more information]
  • Oshima T, Leie M, Grasso S, Parker DA. (2019) Relationship between anterior cruciate ligament and anterolateral meniscal root bony attachment: High-resolution 3-T MRI analysis. The Knee 26(3): May 2019. DOI: 10.1016/j.knee.2019.04.013
  • Parker DA, Giuffre B, Macpherson G, Coolican MRJ, Neri T. (2019) Evaluation of matrix-induced autologous chondrocyte implantation in combination with high tibial osteotomy: A prospective study. The Orthopaedic Journal of Sports Medicine. 7(5) Suppl. 3: May 2019. DOI: 10.1177/2325967119S00207
  • Neri T, Parker DA, Putnis SE, Klasan A, Trombert B, Farizon F, Philippot R. (2019) Clinical and radiological predictors of functional outcome after isolated medial patellofemoral ligament reconstruction at midterm follow-up. The American Journal of Sports Medicine. April 2019. DOI: 10.1177/0363546519831294
  • Neri T, Testa R, Laurendon L, Dehon M, Putnis S, Grasso S, Parker DA, Farizon F, Philippot R. (2019) Determining the change in length of the anterolateral ligament during knee motion: A three-dimensional optoelectronic analysis. Clinical Biomechanics 62: 86-92. [more information]
  • Neri T, Parker DA. (2019) Management of combined anterior cruciate ligament and posterolateral corner injury of the knee. In: Complex Knee Ligament Injuries. pp. 105-121. [DOI: 10.1007/978-3-662-58245-9_10]
  • Neri T, Beach A, Parker D. (2018) Ostéotomie tibiale de valgisation et greffe de chondrocytes autologues : étude prospective comparative. Evaluation of matrix-induced autologous chondrocyte implantation in combination with high tibial osteotomy: A prospective study. Revue de Chirurgie Orthopédique et Traumatologique 104(8): Suppl. S100-S101. [more information]
  • Neri T, Beach A, Parker D. (2018) Lèsions multi-ligamentaires du genou: Profil lèsionnel et rèsultats cliniques. Multifilament knee injuries: Injury pattern and clinical outcomes. Revue de Chirurgie Orthopédique et Traumatologique 104(8): Suppl. P. S98. [more information]
  • National Joint Replacement Registry, Australian Orthopaedic Association, Lewis P, Graves S, Cuthbert A, Parker D, Myers P. (2018) What is the risk of repeat revision when patellofemoral replacement is revised to TKA? An analysis of 482 cases from a large national arthroplasty registrar. Clinical Orthopaedics and Related Research. November 2018.

Events, News and Seminars

Kolling researcher honoured with prestigious, international role

Kolling researcher honoured with prestigious, international role

Congratulations to the Kolling’s Acting Executive Director Professor Chris Little following his ele..... Read more

Category: Research Excellence

Researchers offer new approach to detect frailty in older adults

Researchers offer new approach to detect frailty in older adults

A team of researchers led by the Kolling’s Professor Sarah Hilmer has developed a valuable resource ..... Read more

Category: New Treatment

Philanthropic funding brings new hope to those with chronic pain

Philanthropic funding brings new hope to those with chronic pain

Some of the nation’s leading pain experts are set to embark on research which they believe will chan..... Read more

Category: Funding support, New Treatment