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Surgical Outcomes Research Centre (SOuRCe)

The Surgical Outcomes Research Centre (SOuRCe) was establishment in 2002 and has aimed to promote an evidence-based approach to improve clinical practice and achieve the best possible outcome for patients. As a multidisciplinary, academic research unit of Sydney Local Health District and the University of Sydney; our research agenda addresses diverse aspects of surgical outcomes, including surgical effectiveness, patient reported outcomes and quality of life, patterns of care and evidence-based practice, health economic evaluation, assessment of patient preferences, surgical decision-making and other methodological studies. 

Overall Research Output
Currently, SOuRCe is involved in 250 research studies in collaboration with multi-specialty surgical departments, allied health, nursing, other academics and consumers, based in Australia and Internationally. Over 55% of our research studies are registry-nested and originate from comprehensive data collected from the funded surgical programs, including the Advanced Gastrointestinal Research Program, Robotics Program, Orthopaedic Surgery and Vascular Surgery Programs. The other 45% of our research originates from historical collaborations within the following departments: colorectal, transplant, urology, ear, nose and throat, orthopaedics, upper gastrointestinal, breast, vascular, allied health, head and neck, anaesthetics, nursing, benign gynaecology, pathology, imaging, pharmacy and other departments and institutions.

Over the past 22 years, SOuRCe has rapidly developed to become one of the major Australian surgical research units, and is now a centre of surgical research excellence with international recognition. During this time, SOuRCe was awarded over $30M in competitive funding, including major funding bodies such as the NHMRC, MRFF, CINSW, NIHR and others. SOuRCe has published over 700 peer-reviewed scientific articles in the top surgical and medical journals, including NATURE, BMJ, JAMA surgery, Annals of Surgery, The British Journal of Surgery, Journal of Surgical Oncology and other high impact journals. SOuRCe has supervised over 70 PhD and MPHIL students and over 60 MD students. These achievements have contributed significantly to the enhancement of patient outcomes and have changed clinical practice at RPA, Australia and Internationally.

Funded Research Programs
Our funded surgical research programs include the Advanced Gastrointestinal Surgical Program (including Pelvic Exenteration, Peritoneal Malignancy, Retroperitoneal Sarcoma and Advanced Upper Gastrointestinal Surgery), Robotics Program, Orthopaedic Surgery (including the Bone and Soft Tissue Tumour Program), Vascular Surgery, and the Preoperative Optimisation Research Program. Most of the funded research programs are governed by the RPA Institute of Academic Surgery and are led by a large amount of multidisciplinary and multispecialty groups of clinical and non-clinical staff from a variety of departments across RPA.

Highlights of Surgical Research

Pelvic Exenteration Research Program
Pelvic exenteration is complex, radical surgery for advanced or recurrent pelvic cancers. The Royal Prince Alfred Hospital is one of the few hospitals in Australia that performs large numbers of this surgery and has evolved over 30 years into an internationally recognised centre of excellence.

Currently, SOuRCe holds the largest database in the world capturing clinical and patient reported outcomes of all pelvic exenterations performed at the Royal Prince Alfred Hospital. With over 50 ongoing research projects, the Pelvic Exenteration Research Program has extensively contributed to the development of the current clinical practice worldwide. Under the leadership of Prof Michael Solomon, the Pelvic Exenteration Program is celebrating the completion of the 1000th pelvic exenteration in 2022. This is a remarkable milestone for the program and is credited to the large group of multidisciplinary staff involved in the delivery of the Pelvic Exenteration Surgical Program. 

Peritoneal Malignancy Research Program
The Peritoneal Malignancy program at the Royal Prince Alfred Hospital is included in SOuRCe's research profile, with Cytoreductive Surgery & Hyperthermic Intraperitoneal Chemotherapy (CRS & HIPEC), performed to treat advanced cancers involving the lining of the abdomen. 

The research program started at the beginning of 2017 and undertakes detailed analysis toward better understanding the clinical outcomes, patient reported outcomes, safety benefits and cost effectiveness of this highly specialised procedure. The data collected by SOuRCe is also used to identify specific patient groups who are more likely to benefit from this highly specialised surgery. To date, more than 500 procedures have been performed at the Royal Prince Alfred Hospital, with most patients being followed up to 5-years, including measures of quality of life and health service utilisation. The comprehensive data collection is currently contributing to over 35 research projects, including major clinical trials and international collaborations.

Robotic Research Program
In late 2015, Sydney Local Health District (SLHD) announced the purchase of a da Vinci Xi Surgical Robot and a Stryker Mako Orthopaedic Surgical Robot for use in the Royal Prince Alfred Hospital and Institute of Rheumatology and Orthopaedics operating theatres. RPAH is one of the first public tertiary referral hospitals in Australia to have this state-of-the-art technology available. The following surgical specialties are currently utilising the da Vini Xi system: Cardiothoracic, Colorectal, Urology, Upper Gastrointestinal and Benign Gynaecology. 

Currently, over 800 procedures have been performed using the da Vinci robot and 700 using the Mako robotic system. The unique research framework within the Robotic Research Program at the Royal Prince Alfred Hospital, allow the collection of clinical and quality of life measures for all robotic cases. This approach resulted in the development of more than 40 research projects across multi disciplines.

Bone and Soft Tissue Tumour Surgical Research Program 
The Bone and Soft Tissue Tumour Surgical Research Program, led by the Surgical Outcomes Research Centre (SOuRCe) in collaboration with the Royal Prince Alfred Hospital (RPA) Institute of Academic Surgery, is the newest addition to SOuRCe's research profile. The program was formalised in 2023 and works in partnership with the RPA Bone & Soft Tissue Sarcoma Unit – a world leader in the diagnosis, treatment and follow-up of suspected sarcoma. This program drives advances in scientific knowledge through a robust and comprehensive research initiative, while also informing evidence-based practices. The research conducted contributes to the development of cutting-edge methodologies and expands our understanding in the field, ultimately aiming to provide the best possible outcomes to our patients.

The program has a unique approach, collecting clinical, surgical and patient reported outcomes for all patients undergoing treatment at RPA. This comprehensive information is entered into a secured online database (RPA Outcomes in Bone and Soft Tissue Tumours – ROBUST), which spans from baseline (before surgery) through 10 years post-surgery, and supports ongoing evaluation of patient outcomes across a number of research initiatives and clinical trials. 

Our Research Team

Our Directors

 
Professor Michael Solomon Funder and Head of the Surgical Outcomes Research Centre (SOuRCe);
Academic Head and Surgeon, Department of Colorectal Surgery, Royal Prince Alfred Hospital;
Co-Chairman, RPA Institute of Academic Surgery (IAS);
Professor of Surgical Research, University of Sydney.
Dr Kate McBride Director of the Surgical Outcomes Research Centre (SOuRCe); Director of Operations for the Surgical Program.
Associate Professor Daniel Steffens Director of the Surgical Outcomes Research Centre (SOuRCe). 

Our Expert Advisors

 
Associate Professor Charbel Sandroussi Director of Clinical Research at the RPA Institute of Academic Surgery;
Head of Department of Hepatobiliary and Upper Gastrointestinal Surgery, Royal Prince Alfred Hospital.
Associate Professor Cherry Koh Associate Professor of Surgical Outcomes, University of Sydney;
Research Lead for Colorectal Surgery at the RPA Institute of Academic Surgery.
Dr David Yeo Upper Gastrointestinal, Hepatobiliary and Transplant Surgeon, Royal Prince Alfred Hospital. 
Dr Sharon Carey Nutrition and Dietetics, Royal Prince Alfred Hospital.
Professor Ian Harris Orthopaedic Surgeon;
Honorary Professor, School of Public Health, Faculty of Medicine & Health, University of Sydney.
Professor Kate White Professor Cancer Nursing, Cancer Nursing Research Unit (CNRU) / Susan Wakil School of Nursing and Midwifery / Sydney Nursing School, The Daffodil Centre, Faculty of Medicine and Health

Our Research Staff

 
Sascha Karunaratne Research Manager
Kate Alexander Research Manager
Madhu Prasad Administrative Officer
Jacob Bird Robotic Surgery Research Officer
Lylee Ye Retroperitoneal Saracoma Research Officer
Philip Hay iCAD Trial Coordinator, Orthopaedic Research Officer
Claire Jeon PRIORITY-CONNECT 2 Trial Research Officer
Josielli Comachio PRIORITY Trial Research Officer

Selected Grants

Amount awarded Grant and project details
$1,119,877 NHMRC, 2020-2023
PRIORITY TRIAL - Preoperative exercise for patients undergoing major abdominal cancer surgery: A Multicentre Randomised Controlled Trial
Investigators: Young J, Solomon MJ, Riedel B, Steffens D, Morton R, Denehy L, Heriot A, Koh C, Li Q, Bauman A
$998,609 MRFF 2021 Rare Cancers, Rare Diseases and Unmet Need, 2021-2024
INTER-EWING-1 International clinical research program to improve outcomes in newly diagnosed Ewing Sarcoma patients Trial 1.
Investigators: McCowage G, Desai J, Phillips M, Ryan J, Hong A, Lewin J, Kirby M, Brennan B, Strong T, Stalley P.
$170,000 ANZSA Clinical Research Fellowship, The Kid’s Cancer Project and Rainbows For Kate Foundation, 2022-2024
ANZSA Clinical Research Fellowship
Investigator: Strach M.
US$50,000 Intuitive, 2022
UDIVERT: A randomised study assessing intracorporeal versus extracorporeal urinary diversion for patients undergoing robotic assisted radical cystectomy (RARC).
Investigators: Leslie S, Thanigasalam R, Broe M.
$41,600 University of Sydney DVCR COVID Support Scheme Grant, 2022
PRIORITY TRIAL - Preoperative exercise for patients undergoing major abdominal cancer surgery: A Multicentre Randomised controlled Trial. 
Investigators: Young J, Solomon MJ, Riedel B, Steffens D, Morton R, Denehy L, Heriot A, Koh C, Li Q, Bauman A.
$10,000 Royal Australasian College of Surgeons, 2021-2023
Hugh Johnston Travel Grant
Investigator: Coker D.

Our Publications

2023

Brown KGM, D'Souza N, Solomon MJ. How to access the presacral space using a posterior trans-sacral approach. ANZ J Surg 2023; DOI: 10.1111/ans.18750.
Brown KGM, McBride K, Anderson T, Solomon MJ. Delivering complex surgical services: lessons learned from the evolution of a specialised pelvic exenteration centre. Australian Health Review 2023; 47(6) 735-740: DOI: 10.1071/AH23186.
Brown KGM, Ng KS, Solomon MJ, Chapuis P, Koh CE, Ahmadi N, Austin KKS. Complete mesocolic excision for colon cancer: Current status and controversies. ANZ Journal of Surgery 2023; DOI:10.1111/ans.18741.
Brown KGM, Risbey C, Solomon MJ, Austin KKS, Lee PJ, Byrne CM. Pelvic exenteration for chronic fistulating pelvic sepsis after multimodal treatment of pelvic malignancy. European Journal of Surgical Oncology 2023; 49:107124.
Brown KGM, Solomon M, Ng K-S, Sutton P, Koh C, White K, Steffens D, EviSurg Research Group. Development of a risk prediction tool for patients with locally advanced and recurrent rectal cancer undergoing pelvic exenteration: protocol for a mixed methods study. BMJ Open 2023; DOI:10.1136/bmjopen-2023-075304.
Brown KGM, Solomon MJ, Heriot A, Frizelle F. Treatment of locally advanced and recurrent rectal cancer in Australia and New Zealand: recent progress and future challenges. ANZ Journal of Surgery 2023; DOI: 10.1111/ans.18635.
Brown KGM, Solomon MJ, Steffens D, Ng KSN, Byrne CM, Austin KKS, Lee PJ. Pelvic exenteration for squamous cell carcinoma of the anus: oncological, morbidity and quality of life outcomes. Diseases of the Colon & Rectum 2023; 66(11):1427-1434.
Burgess A, van Diggele C, Schneider C, Haq  I, Leadbeatter D, Karunaratne S, McKenzie S, Clark T, Henry J, Bloomfield J.  An Interprofessional Peer Teacher Training program for health professional students: `face to face' versus `online only'. Journal of University Teaching & Learning Practice 2023; 20:71-89. 
Fitzsimmons T, Thomas M, Tonkin D, Murphy E, Hollington P, Solomon M, Sammour T, Luck A.   Establishing a State-wide Pelvic Exenteration Multidisciplinary Team Meeting in South Australia. ANZ Journal of Surgery 2023; 93(5):1227-1231; DOI: 10.1111/ans.18220.
Fullard K, Steffens D, Solomon M, Shin J-S, Koh C.   Measuring the impact of the Covid-19 pandemic on colorectal cancer presentation: A retrospective comparative study.  ANZ Journal of Surgery 2023; 93:2951-2957: DOI: 10.1111/ans.18701.
Giddings HL, Ng K-S, Solomon MJ, Steffens D, van Buskirk J, Young J. Population outcomes, trends and the future of pouch surgery for ulcerative colitis: A 19-year NSW data linkage study. ANZ Journal of Surgery 2023; 93:2686-2696.
Giddings HL, Ng K-S, Solomon MJ, Steffens D, van Buskirk J, Young J. Reducing rate of total colectomies for ulcerative colitis but higher morbidity in the biologic era. An 18-year linked data study from NSW Australia. ANZ Journal of Surgery 2023; 93:2928-2938: DOI: 10.1111/ans.18713.
Greijdanus NG, Wienholts KR, Ubels S, Talboom K, Hannink G, Wolthuis A, de Lacy BF, Lefevre JH, Solomon M, Frasson M, Rotholtz N, Denost Q, Perez RO, Konishi T, Panis Y,Rutegard M,  Hompes R,  Rosman C, van Workum F, Tanis PJ, de Wilt JHW, and the TENTACLE-Rectum collaborative group. Stoma-free survival after rectal cancer resection with anastomotic leakage: Development and validation of a prediction model in a large international cohort. Annals of Surgery 2023; 278:772-780.
Han CS, Maher CG, Steffens D, Diwan A, Magnussen J, Hancock EC, Hancock MJ. Some magnetic resonance imaging findings may predict future low back pain and disability: a systematic review. Journal of Physiotherapy 2023; 69:79-92.
Harji D, Koh C, McKigney, Solomon MJ, Griffiths B, Evans M, Heriot A, Sagar PM, Velikofa G, Brown JM.  The Development and Validation of a patient reported outcome measure of health-related quality of life in locally recurrent rectal cancer: a multicentre, three phase, mixed-methods, cohort study (LRRC-QoL).   eClinicalMedicine Part of the Lancet Discovery Science 2023; 59: May2023; DOI: 10.1016/j.eclinm.2023.101945.
Harris IA, Sidhu VS, Buchbinder R. Low Molecular Weight Heparin is Superior to Aspirin in the Prevention of Thromboembolic Disease, or is it? Response to an Editorial. The Journal of Arthroplasty. 2023 Apr 1;38(4):e7-8.
Hirst N, McBride K, Leslie S, Thanigasalam R, Leslie S, Karunaratne S, Alexander K, Treacy P-J, Steffens D. Impact of preoperative mental health on surgical outcomes following robotic-assisted radical prostatectomy. Urology 2023; DOI:10.1016/j.urology.2023.09.019.
Jiang W, Koh C, Solomon M, Karunaratne S, Beckenkamp PR, Clifford K, Woodfield J, Steffens D.  Time to Prioritise Quality over Quantity of Prehabilitation Trials: A Literature Review. Eurasian Journal of Medicine and Oncology 2023; 7:287-303.
Johnstone CSH, Roberts D, Mathieson S, Steffens D, Koh CE, Solomon MJ, McLachlan AJ. Pain, pain management and related outcomes following pelvic exenteration surgery: a systematic review. Colorectal Disease 2023; 25:562-572.
Johnstone J, Koh C, Britton GJ, Solomon MJ, McLachlan A. Implementation of a perioperative pain management algorithm reduces the use of opioid analgesia following pelvic exenteration surgery. Colorectal Disease 2023; 25:631-639; DOI: 10.1111/codi.16442.
Kanakaratne S, Hong J, Solomon MJ, Young CJ. Ileal pouch-anal anastomosis provides good functional and quality of life outcomes following proctocolectomy: A 33-year single centre experience.  ANZ Journal of Surgery 2023; DOI: 10.1111/ans.18827.
Karunaratne S, Harris IA, Horsley M, Trevena L, Solomon M.   Establishing a hierarchy of total knee arthroplasty patients' goals and its congruity to health professionals' perceptions: A cohort study. ANZ Journal or Surgery 2023; DOI: 10.1111/ans.18817.
Kim RG, An VV, Lee SL, Khadra SM, Petchell JF. Overlapping surgery in arthroplasty-a systematic review and meta-analysis. Orthopaedics & Traumatology: Surgery & Research. 2023 Jun 1;109(4):103299.
Kim RG, Maher AW, Karunaratne S, Stalley PD, Boyle RA. Tenosynovial giant cell tumours: experience at an Australian tertiary referral centre for musculoskeletal tumours with minimum two-year follow-up. Bone & Joint Open 2023; 4:846-852. 
Leslie S, Jackson S, van Diepen DC, Stanislaus C, Steffens D, McClintock G, Kim S, Hirst N, Jeffery N, Fallot J, Broe M, Chan L, Vasilaras A, Sved P, Ahmadi N, Thanigasalam R. Improved early and late continence following robot-assisted radical prostatectomy with concurrent bladder neck fascial sling (RoboSling). BJUI Compass 2023; 4:597-604.
Lim C, Laidsaar-Powell RC, Young JM, Steffens D, Ansari N, Joshy G, Butow P. Healthcare experiences of people with advanced colorectal cancer: A qualitative study. European Journal of Oncology Nursing 2023; 63:102265; DOI: 10.1016/j.ejon.2022.102265.
Makker PGS, Koh CE, Ansari N, Gonzaga N, Bartyn J, Solomon M, Steffens D. Functional outcomes following Cytoreductive surgery and Hyperthermic Intraperitoneal Chemotherapy: A prospective cohort study. Annals of Surgical Oncology 2023; 30:447-458; DOI: 10.1245/s10434-022-12691-x.
Makker PGS, Koh CE, Steffens D. ASO Author Reflections: Pre-operative Function Status Predicts Post-operative Outcomes in Patients Undergoing Cytoreductive Surgery and Hyperthermic Intra-peritoneal Chemotherapy. Annals of Surgical Oncology 2023; DOI: 10.1245/s10434-022-12750-3.
March B, Palma CA, Leslie S, Watson G, Lee P, Austin KKS, Solomon M, Jeffery N. Phallus Preservation for Locally Advanced Proximal Primary Urethral Carcinoma: Technique and Outcomes. Surgical Techniques in Urology 2023; 173:198-203.
Mercieca-Bebber R, Eggins R, Brown K, Gebski V, Brewer k, Lai L, Bailey L, Solomon M, Lumley J, Hewett P, Clouston A, Wilson K, Hague W, Hayes J, White S, Morgan M, Simes RJ, Stevenson AR L. Patient-reported bowel, urinary and sexual outcomes after Laparoscopic-assisted Resection or Open Resection for Rectal Cancer: The Australasian Laparoscopic Cancer of the Rectum Randomized Clinical Trial (ALaCart). Annals of Surgery 2023; 277:449-455: DOI: 10.1097/SLA.0000000000005412.
Narula R, Song M, Karunaratne S, Smithers C, Petchell J.   Trends in shoulder surgery patient reported outcome measures.  JSES International (Journal of Shoulder and Elbow Surgery) 2023; 7:653-661.
Palma CA, van Kessel CS, Solomon MJ, Leslie S, Jeffery N, Lee PJ, Austin KKS. Bladder preservation or complete cystectomy during pelvic exenteration of patients with locally advanced or recurrent rectal cancer, what should we do? European Journal of Surgical Oncology 2023; 49:1250-1257; DOI: 10.1016/j.ejso.2023.01.002.
Raichurkar P, Denehy L, Solomon M, Koh C, Pillinger N, Hogan S, McBride K, Carey S, Bartyn J, Hirst N, Steffens D; and the Prehabilitation Expert Collaborative. Research Priorities in Prehabilitation for Patients Undergoing Cancer Surgery: An International Delphi Study. Annals of Surgical Oncology 2023; 30:7226-7235; DOI:10.1245/s10434-023-14192-x.
Raichurkar P, Koh C, Steffens D. ASO Author Reflections: Future directions in Prehabilitation Research. Annals of Surgical Oncology 2023; DOI: 10.1245/s10434-023-14304-7.
Rajendran S, Brown KGM, Solomon MJ. Oncovascular surgery for advanced pelvic malignancy. British Journal of Surgery 2023; 110:144-149.
Rajendran S, Nguyen CL, Brown KGM, Solomon MJ. The evolution of oncovascular pelvic surgery: a historical perspective. European Journal of Surgical Oncology 2023; 49:1314-1316.
Risbey C, Fielder T, Steffens D, Joo-Shik S, Solomon M. Patterns of DNA mismatch repair protein expression for primary and recurrent colorectal cancer at an advanced surgical unit: a retrospective audit. Colorectal Disease 2023;25:369-374.
Risbey C, Khoma O, Shin J-S, Sandroussi C. Revision Surgery is Possible in Patients With Previous Bovine Pericardium Inferior Vena Cava Reconstruction: A Case Series and Review of Literature.  Vascular and Endovascular Surgery 2023; DOI: 10.1177/15385744231189021.
Risbey CWG, Brown KGM, Solomon M, Koh C, Karunaratne S, Steffens D. Impact of geographical health disparities on outcomes following pelvic exenteration at a centralised quaternary referral centre. European Journal of Surgical Oncology 2023; 49:107082.
Sidhu V, Badge H, Churches T, Maree Naylor J, Adie S, A Harris I. Comparative effectiveness of aspirin for symptomatic venous thromboembolism prophylaxis in patients undergoing total joint arthroplasty, a cohort study. BMC Musculoskeletal Disorders. 2023 Aug 3;24(1):629.
Sidhu V, Naylor JM, Adie S, Bastiras D, Buchbinder R, Ackerman I, Harris IA. Post‐discharge patient‐reported non‐adherence to aspirin compared to enoxaparin for venous thromboembolism prophylaxis after hip or knee arthroplasty. ANZ Journal of Surgery. 2023 Apr;93(4):989-94.
Sidhu VS, Harris IA. Aspirin vs Enoxaparin and Symptomatic Venous Thromboembolism in Hip or Knee Arthroplasty-Reply. JAMA. 2023 Jan 10;329(2):177-8.
Sidhu VS, Kelly TL, Pratt N, Graves SE, Buchbinder R, Adie S, Cashman K, Ackerman IN, Bastiras D, Brighton R, Burns AW. Effect of Aspirin vs Enoxaparin on 90-Day Mortality in Patients Undergoing Hip or Knee Arthroplasty: A Secondary Analysis of the CRISTAL Cluster Randomized Trial. JAMA network open. 2023 Jun 1;6(6):e2317838-.
Sidhu VS, Naylor JM, Adie S, Lieu D, Walker R, Horsley M, Kim RG, Harris IA. Is Enoxaparin Associated With a Higher Risk of Persistent Wound Drainage Than Aspirin? A Secondary Analysis of Data From the CRISTAL Randomized Trial. Clinical Orthopaedics and Related Research®. 2023 Jul 1;481(7):1351-9.
Siu A, Holyland M, Carey S, Steffens D, Ansari N, Koh C. Is the measurement of sarcopenia associated with oncological disease in patients undergoing CRS and HIPEC? ANZ Journal of Surgery 2023; DOI:10.1111/ans.18645.
Steffens D, Denehy L, Solomon MJ, Koh C, Ansari N, McBride K, Carey S, Bartyn J, Lawerence AS, Sheehan K, Delbaere K.  Consumer perspectives on the adoption of a prehabilitation multimodal online program for patients undergoing cancer surgery. Cancers 2023; 15(20):5039.
Steffens D, Makker PGS, Ansari N, Solomon MJ, Solanki H, Moran B, Koh C.  The influence of postoperative morbidity on medium to long-term quality of life trajectories following cytoreductive surgery for peritoneal malignancy - A prospective cohort study. Surgical Oncology Insight 2023; 100004, ISSN 2950-2470, DOI:10.1016/j.soi.2023.100004.
Steffens D, McBride KE, Hirst N, Solomon MJ, Anderson T, Thanigasalam R, Leslie S, Karunaratne S, Bannon PG.  Surgical outcomes and cost analysis of a multi-specialty robotic-assisted surgery caseload in the Australian public health system.  Journal of Robotic Surgery 2023; 17:2237-2245; DOI: 10.1007/s11701-023-01643-6.
Steffens D, Pocovi NC, Bartyn J, Delbaere K, Hancock MJ, Koh C, Denehy L, van Schooten KS, PRIORITY TRIAL COLLABORATION (Young J, Riedel B, Morton RL, Heriot A, Li Q, Bauman A, Sandroussi C, Ismail H, Dieng M, Ansari N, Pillinger N, O'Shannassy S, McKeown S, Cunningham D, Sheehan K, Iori G, Ahmadi N, Lee P, Hong J), Solomon M.  Feasibility, reliability and safety of remote five times sit to stand test in patients with gastrointestinal cancer. Cancers 2023; 15:2434.
Steffens D, Solomon M, Lee P, Austin K, Koh C, Byrne C, Karunaratne S, Hatcher S, Taylor K, McBride K. Surgical, survival and quality of life outcomes in over 1000 pelvic exenterations:  Lessons learned from a large Australian case series. ANZ Journal of Surgery. 2023; 93:1232-1241; DOI: 10.1111/ans.18356.
Steffens D, Solomon M, Young J, Beckenkamp PR, Bartyn J, Koh C, Hancock M. A review of patient recruitment in randomised controlled trials of preoperative exercise. Clin Trials. 2023; DOI: 10.1177/17407745231219270. Epub ahead of print.
The PelvEx Collaborative. Empty pelvis syndrome: PelvEx Collaborative guideline proposal. British Journal of Surgery; 2023; 110:1730-1731: DOI:10.1093/bjs/znad301.
Toms C, Sandroussi C, Yeo D, Morkaya J, Pulitano C, Steffens D. Patient-Reported Outcomes and Survival Following Pancreatic Cancer Resection-Results from a Cross-Section Study. Gastrointestinal Disorders 2023; 5:508-516; DOI: 10.3390/gidisord5040042.
Treacy P-J, Falagario U, Magniez F, Ratnani P, Wajswol E, Martini A, Jambor I, Wiklund P, Benetellis I, Barthe F, Kyprianou N, Durand M, Steffens D, Karunaratne S, Leslie S, Thanigasalam R, Tewari A. Decipher Score predicts prostate specific antigen persistence after prostatectomy. Minerva Urology &  Nephrology 2023; 75(5):583-590: DOI: 10.23736/S2724-6051.23.05395-8.
van Kessel CS, Waller J, Steffens D, Lee PJ, Austin KKS, Stalley PD, Solomon MJ. Improving Surgical Outcomes in Pelvic Exenteration Surgery: Comparison of Prone Sacrectomy with Anterior Cortical Sacrectomy techniques. Annals of Surgery 2023; 278:945-953.
Virk A, Treacy P-J, Thanigasalam R, Leslie S.  What are the Most Important Objectives of Patients Undergoing Radical Prostatectomy?  Narrative Review. Research and Reports in Urology 2023:15 563-569.
Virk A, Treacy P-J, Zhong W, Doeuk N, Doeuk C, Leslie S.  A Chance Finding of High Grade Prostate Cancer in a 35-Year-Old Male - A Case Report and Outcomes of Robotic Radical Prostatectomy in Young Men with Prostate Cancer. Research and Reports in Urology 2023:15 571-576.