Our projects

Mater Orthopaedic Outcomes Registry

 The Mater Hospital is acknowledged as the largest joint replacement centre in the Southern Hemisphere. In 2013, nearly 2000 joint replacements were performed at the Mater Hospital. This high volume of arthroplasty procedures places The Mater in a unique position to become a leader in orthopaedic research in the outcomes of arthroplasty. The systematic monitoring of the outcomes of joint arthroplasty performed at The Mater hospital is integral to quality assurance to ensure that patients are receiving the best and most current standard of care. 

The aim of this registry is to document the outcome of hip and knee arthroplasty procedures performed at the Mater Hospital, including operative variables, as well as patient reported outcome measures after surgery. This is a collaborative project between The Mater Hospital and North Sydney Orthopaedic Research Group. 

If you are a participant in this study, our researcher Ka Martina will ask you to complete questionnaires regarding your current knee or hip symptoms before your surgery, and at 6 and 12 months after your arthroplasty procedure. You do not need to attend for any assessments for further tests. 


Mater Accelerated Recovery Strategy (MARS)

Historically, joint replacement surgery was seen as a procedure where rest and long periods of time in rehabilitation were encouraged for recovery. However, research has shown that with modern surgical techniques, anaesthetics, pain management and pre-operative preparation, inpatient rehabilitation is not beneficial for all patients. Following joint replacement surgery, numerous clinical trials have found greater improvements in pain and function with home-based rehabilitation compared with inpatient hospital-based rehabilitation. Additionally, home-based rehabilitation reduces complications and the risk of adverse events compared to inpatient hospital-based services.

In a recent study at performed by the NSORG at The Mater Hospital, inpatient rehabilitation did not improve patient reported satisfaction, pain, quality of life or function scores after surgery, compared to subjects who were discharged to home. A trend towards higher rates of patient satisfaction in subjects who were discharged to home was reported. These findings can be likened to other studies around the world. Thus, here at The Mater Hospital, your surgeon and their team have adopted evidence-based techniques by developing the Mater Accelerated Recovery Strategy (MARS), which will reduce the time spent in hospital and enable a faster return to your home and normal activities for selected patients. Eligibility for MARS is decision made between the patients and the surgeon, and based on factors such as your age, preoperative living conditions, activity level and independence.

Find out more

ACL Reconstruction Research Projects

Research into Anterior Cruciate Ligament (ACL) Reconstruction of the knee has been an area of considerable focus for the NSORG research team. For over 20 years we have maintained a longitudinal database of over 16,000 knee reconstruction procedures, resulting in considerable publications and awards. Numerous projects are ongoing, examining the factors associated with successful outcomes, return to sports and reinjury. A recent video summary of our research into the outcomes of ACL reconstruction in children using parental hamstring grafts has been highlighted in the American Journal of Sports Medicine (see below).  



Please use the forms below as instructed by our staff

MARS Information Brochure (pdf)


Database Information and Consent Form (pdf)


Preoperative Hip Assessment Form (pdf)


Preoperative Knee Assessment Form (pdf)