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75
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Introduction
Current institution
Additional affiliations
July 2017 - present
January 2016 - present
August 2003 - April 2005
Education
February 2009 - September 2009
January 2005 - December 2008
January 1999 - June 2003
Publications
Publications (75)
The recently-completed special edition of Arthroplasty entitled 'Advances in Artificial Intelligence and Robotics in Joint Arthroplasty', brings together novel and innovative research from around the world in this cutting edge topic area. With robotics, artificial intelligence and technology-assistance (inside and out of the operating theatre) all...
Introduction
Clinical recognition of potential immune‐mediated allergic responses to implanted metal devices is increasing. For orthopaedic implants, while ‘pure’ compounds are used in specific circumstances, the majority of components are alloys – a combination of two or more distinct metals. Titanium is found commonly in many orthopaedic devices...
![Recognised pelvic morpho-types, as described by Caldwell and Moloy [4]](publication/382426821/figure/fig2/AS:11431281261374339@1721527547219/Recognised-pelvic-morpho-types-as-described-by-Caldwell-and-Moloy-4_Q320.jpg)
Background
Fundamental morphologic differences between male and female pelvises are historically recognised. Despite this, little consideration has been given as to whether or not conventional positioning supports used for primary total hip arthroplasties (THAs) performed in the lateral position do an equally effective job of maintaining the intend...
Background
The frequency of primary joint replacement surgery continues to increase worldwide. While largely considered biologically inert entities, an increasing body of evidence continues to validate a not insignificant incidence of allergic reactions to such implants. Little previous work has explored genuinely immune-mediated reactivity in this...
Background
Unintended pelvic positional change is an acknowledged intra-operative problem for hip arthroplasty, seen commonly with procedures performed in the lateral position. If unrecognised, such changes can dramatically alter final acetabular component anteversion potentially resulting in suboptimal construct performance. It has previously been...
Background
Artificial intelligence (AI) has become involved in many aspects of everyday life, from voice-activated virtual assistants built into smartphones to global online search engines. Similarly, many areas of modern medicine have found ways to incorporate such technologies into mainstream practice. Despite the enthusiasm, robust evidence to s...
Abstract
Introduction: Aseptic lymphocyte-dominated vasculitis-associated lesions (ALVAL) are typically described in the context of metal-on-metal (MoM) hip bearings. This current study explores the diagnostic utility of preoperative serum cobalt and chromium ion levels in determining the histological grade of ALVAL in revision hip and knee arthro...
Aims
Hip resurfacing remains a potentially valuable surgical procedure for appropriately-selected patients with optimised implant choices. However, concern regarding high early failure rates continues to undermine confidence in use. A large contributor to failure is adverse local tissue reactions around metal-on-metal (MoM) bearing surfaces. Such p...
Strategy regarding patella resurfacing in total knee replacement (TKR) remains controversial. TKR revision rates are reportedly influenced by surgeon procedure volume. The study aim was to compare revision outcomes of TKR with and without patella resurfacing in different surgeon volume groups using data from the AOANJRR.
The study population includ...
Total hip arthroplasty (THA) is an effective treatment for symptomatic hip osteoarthritis (OA). While computer-navigation technologies in total knee arthroplasty show survivorship advantages and are widely used, comparable applications within THA show far lower utilisation. Using national registry data, this study compared patient reported outcome...
Total hip arthroplasty (THA) is an effective treatment for symptomatic hip osteoarthritis (OA). Computer-navigation technologies in total knee arthroplasty show evidence-supported survivorship advantages and are used widely. The aim of this study was to determine the revision outcome of hip commercially available navigation technologies.
Data from...
Background
Total hip arthroplasty (THA) is an effective treatment for symptomatic hip osteoarthritis. The aim of this study was to determine the revision outcome of commercially available navigation technologies.
Methods
Data from the Australian Orthopaedic Association National Joint Replacement Registry from January 2016 to December 2020 included...
Conclusion: It is important for radiologists to be familiar with ILA as it is a common finding particularly in the aging demographic and is associated with potential progression to ILD. At the same time, it is important to be aware of the distinction between radiological ILA and clinical ILD, to avoid the diagnostic pitfall of overcalling ILDs.
Background: Conventional lateral decubitus positioning for Total Hip Arthroplasties (THAs) is highly imprecise and further loss-of-position occurs during the procedure itself. This unintended movement is poorly recognised and can introduce substantial error in definitive acetabular component orientation. Failure to achieve desired target cup positi...
Total hip arthroplasty (THA) stands as a reliable and effective way to manage end-stage hip disease secondary to a number of aetiologic conditions. While target 'safe zones' are widely quoted and endorsed, an increasingly robust body of evidence suggests that such idealised implantation goals have limited utility in patient-to-patient consideration...
Introduction:
Pelvic rotation (PR) on preoperative radiograph templating can affect various critical measured acetabular angles and potentially outcomes of successful total hip arthroplasty (THA). Optimising anatomical reconstruction of the joint is essential to achieve function, longevity and prevention of complications following surgery. There i...
Technological advances continue to evolve at a breath-taking pace. Computer-navigation, robot-assistance and three-dimensional digital planning have become commonplace in many parts of the world. With near exponential advances in computer processing capacity, and the advent, progressive understanding and refinement of software algorithms, medicine...
Background
Compared to total knee arthroplasty (TKA), patellofemoral arthroplasty (PFA) is a far less commonly performed operation. However, in carefully selected cohorts, PFA continues to be an appropriate treatment option for end-stage isolated patellofemoral joint osteoarthritis. In the later situation whereby a PFA is considered for conversion...
Introduction
Pelvic rotation (PR) on preoperative X-ray templating can affect various critical measured acetabular angles and potentially outcomes of successful total hip arthroplasty (THA). Optimising anatomical reconstruction of the joint is essential to achieve function, longevity and prevention of complications following surgery. There is limit...
Fungal periprosthetic joint infections are an uncommon but potentially devastating complication of arthroplasty surgery. The concurrent presence of a coexistent bacterial pathogen—a so called “super-infection”—adds further complexity. With delays to definitive diagnosis and a large number of procedures before cure, the associated physical and psych...
Once purely the domain of knee surgery, the use of computer-navigated techniques in total hip arthroplasty (THA) is becoming progressively more commonplace. As with the adoption of any new technology-assisted approach, the uptake of navigated THA utilization has heralded a new suite of technique-specific potential complications. One such example -...
Purpose of review:
Traumatic injury has been described as a growing pandemic which has significant implications for global health. In the trauma setting, anemia is a common occurrence and is frequently inadequately addressed. It is associated with significant morbidity and incurs great cost - both to the patient and to the health system. The cause...
Pain remains a significant barrier to rapid patient recovery and rehabilitation post-surgery, particularly after joint replacement surgery. Historically, protocols used for peri-operative pain management have been largely reactive and dependent on opioid use, with adjunctive non-steroidal and other simple analgesia. This review explores the evidenc...
Background:
Aseptic lymphocyte-dominated vasculitis-associated lesion (ALVAL) development (including pseudotumors) secondary to metal debris generation around total hip arthroplasties is a well-recognized histopathologic phenomenon. Emerging data have highlighted a similar potential concern around TKAs although the body-of-knowledge has largely be...
Background:
Once touted as the future of hip arthroplasty, metal-on-metal (MoM) bearing surfaces have fallen sharply from favor with the emergence of a strong body of evidence demonstrating unacceptably high premature implant failure rates. The previously unpredictable development of adverse local tissue reactions (ALTRs) has been a substantive co...
The well-recognized erosion of pathoanatomic correlations in basic medical training, combined with the increasing everyday pressures of time-efficacy in patient examination, continue to place strain on junior clinicians. Over the years, many refinements to tried-and-true basic physical examination techniques have been described, allowing improvemen...
The analgesic efficacy of nonsteroidal anti-inflammatory drugs (NSAIDs) is well established, and these agents often form an integral part of posttraumatic pain management. However, potentially deleterious effects of resulting prostaglandin suppression on fracture-healing have been suggested.
A systematic literature review involving searches of elec...
The application of MRI as a non-invasive, quantitative tool for diagnosing lumbar intervertebral disc degeneration is currently an area of active research. The objective of this study was to examine, in vitro, the efficacy of a manganese chloride phantom-based MRI technique for quantitatively assessing lumbar disc composition and degenerative condi...
The risk of secondary haematologic complications such as deep vein thrombosis or pulmonary embolism increases significantly when a transient period of hypercoagulability is induced after total hip replacement (THR). A number of drug-based anticoagulant approaches are available to modulate this risk, but the optimal length of therapy for such approa...
PurposeSince conceptualisation in 1955, journal impact factors (IFs) have evolved as surrogate markers of perceived ‘quality’. However, no previous research has explored the relationship between IF and journal self-citation rate, which may inflate this measure. Given Radiography's ongoing push to achieve Medline and ISI database inclusion, this pap...
IntroductionNon-biological, yet signal-responsive, MR phantom materials are becoming increasingly commonplace. One such novel agent, semi-solid manganese chloride (MnCl2), has recently been described as a potential calibration standard for direct assessment of in vivo cartilage fluid content. Given the established correlation between intervertebral...
ObjectiveWithin the contemporary constraints associated with in vivo use for research purposes, preservation of macroscopic human tissue specimens is of critical importance. Simple sub-zero freezing remains the method-of-choice for medium-term storage of such material. Despite widespread use, few papers have described the effects of this preservati...
Currently available synthetic void fillers are indicated for bony voids or gaps that are not intrinsic to the stability of the structure. Jax TCP (tricalcium phosphate) is an osteoconductive bioceramic fabricated into 4 mm granules with a unique interlocking form, promoting structural integrity while allowing bone ingrowth. The objective of this st...
Emerging longitudinal data appear to demonstrate an alarming trend towards an increasing prevalence of osteolysis-induced mechanical failure, following total knee replacement (TKR). Even with high-quality multi-plane X-rays, accurate pre-surgical evaluation of osteolytic lesions is often difficult. This is likely to have an impact on surgical manag...
An extensive body of literature demonstrates a strong correlation between intervertebral disk (IVD) hydration status (HS) and functional spinal integrity. However, to date, in vivo IVD HS assessment has relied largely on subjective and nonrepeatable measures. The aim of this study was to establish the consistency of signal homogeneity of a novel se...
This study aimed to develop a manganese chloride (MnCl2)-based phantom model that would allow progressive quantitative assessment of tissue hydration based on observed magnetic resonance (MR) imaging signal intensity (SI) linearity characteristics.
The study was performed using a progressive signal refinement technique that allowed development of a...
This review explores the association between GJB2 gene mutations, encoding connexin 26 (Cx26), and nonsyndromic hearing loss. Connexins are proteins that form intracellular membrane channels and regulate ion movement between contiguous fluid spaces. A family of autosomal gene mutations has been identified that lead to abnormal connexin expression w...
Occupational noise-induced hearing loss (ONIHL) describes an acquired hearing deficiency directly attributable to excessive workplace noise exposure. Data suggest that excessive noise attributes to approximately 37% of all adult causes of hearing loss and remains a significant contributor to employment-related morbidity internationally. Typically i...
Stratifying candidates objectively on the merit of publication portfolios is an onerous and difficult task. Institutional committees are under increasing pressure to rank applicants based on previous achievements for appointments/promotions, funding, and awards, and must do so within unforgiving time constraints. The journal impact factor (IF) has...
PurposeThe aim of this study was to establish intra- and inter-observer repeatability in the direct linear measurement of knee structures displayed using three-dimensional (3-D) reconstructed computer imaging.MethodsTo test inter-observer repeatability, using a commercially available image reconstruction software package, seven observers were asked...
Publications regarding volume measurements derived from reconstructed three-dimensional (3-D) images have arisen from several research centres, yet only one example could be found of previous work specifically addressing the effect of acquisition slice thickness on the accuracy of such volume measurements in a musculoskeletal setting. Given the rel...
The aim of this study was to determine the influence of slice thickness upon the accuracy of volume measurement taken from three‐dimensional reconstructed magnetic resonance (MR) images.
A pair of scaled meniscal cartilage phantoms (medial and lateral) were created from a low viscosity acrylic casting resin. The two phantoms were imaged simultaneou...
Acrylic phantoms are being increasingly used as an alternative to cadaveric and animal derived tissue samples in pre-clinical magnetic resonance (MR) imaging research studies. Such phantoms have been imaged using a variety of MR sequences but little effort has been devoted to determining the most appropriate MR pulse sequence. In order to address t...
Purpose: The aim of this study was to test the accuracy of measurements obtained from three-dimensional (3-D) reconstructed magnetic resonance images in the setting of a depressed tibial plateau fracture. Methods: A simulated bilateral tibial plateau depression fracture was surgically induced in a disarticulated ovine knee. An attached perspex spac...
PurposeAcrylic phantoms are being increasingly used as an alternative to cadaveric and animal derived tissue samples in pre-clinical magnetic resonance (MR) imaging research studies. Such phantoms have been imaged using a variety of MR sequences but little effort has been devoted to determining the most appropriate MR pulse sequence. In order to ad...
The aim of this study was to establish intra- and inter-observer repeatability in the direct linear measurement of knee structures displayed using three-dimensional (3-D) reconstructed computer imaging.Methods
To test inter-observer repeatability, using a commercially available image reconstruction software package, seven observers were asked to re...
PurposeThe aim of this study was to determine whether the orientation of scan acquisition plane exerts a significant influence on the perceived quality of three-dimensional (3-D) reconstructed magnetic resonance (MR) images of human knee anatomy.MethodsNon-isotropic, T1 weighted, unilateral knee MR studies were performed on five healthy volunteer s...
This study examined the effect of bovine colostrum (BC) supplementation on the tissue composition of resistance trained (T) and untrained (UT) limbs. Using a double-blind design, subjects were randomly allocated to 60 g day(-1) of BC ( n=17) or whey protein (WP) ( n=17) during 8 weeks of resistance training of the elbow flexors (EF) of their non-do...
Pre-hospital care is a vastly under-researched field within the Australian allied health and medical environment. Recent cooperation between the Australian College of Ambulance Professionals (ACAP) and the Monash University Centre for Ambulance and Paramedic Studies (MUCAPS) has brought about the formation of the Journal of Emergency Primary Health...
The impact factor, a simple mathematical formula reflecting the number of citations of a journal's material divided by the number of citable materials published by that same journal, has evolved to become one of the most influential tools in modern research and academia. The impact factor can be influenced and biased (intentionally or otherwise) by...
The impact factor, a simple mathematical formula reflecting the number of citations of a journal's material divided by the number of citable materials published by that same journal, has evolved to become one of the most influential tools in modern research and academia.
The impact factor can be influenced and biased (intentionally or otherwise) b...
The changing focus within medical and allied health disciplines towards evidence-based practice has resulted in an increasing acceptance of research and professional researchers. Despite the shift towards tertiary degree-based training for medical imaging and allied specialty streams, with many teaching institutions now incorporating compulsory res...
Purpose: The aim of this study was to determine the effect of base image window level selection on direct linear measurement of knee structures displayed using new magnetic resonance (MR)-based three-dimensional reconstructed computer imaging techniques.Methods: A prospective comparative study was performed using a series of three-dimensional knee...
A single, complete, ovine knee was imaged using conventional MRI then dissected allowing comprehensive dimensional measurement of the intra-articular structures. A three-dimensional (3-D) computer model of the knee was generated from the MR sections. Thirty-two individual structural measures were recorded from the image output for which there was a...
The aim of this study was to determine the level of application of three-dimensional reconstructive magnetic resonance imaging (MRI) in orthopaedics within South Australia (SA). Following contact with the SA branch of the Australian Orthopaedic Association, survey forms were mailed to 14 medical institutions across the state who were identified as...
Research on knee MRI has traditionally used experienced musculoskeletal radiologists to assess the performance of knee MRI. These observers are not representative of the typical experience level of radiologists reporting knee MRI in Australia. The accuracy of knee MRI in the Australian setting is therefore uncertain. A preliminary study was perform...
