Jay R Ebert

Jay R Ebert
University of Western Australia | UWA · School of Human Sciences

PhD

About

148
Publications
38,659
Reads
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2,272
Citations
Citations since 2016
100 Research Items
1740 Citations
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Additional affiliations
January 2009 - January 2017
University of Western Australia
Position
  • Lecturer
Education
June 2003 - August 2008
School of Sport Science, Exercise and Health, The University of Western Australia
Field of study
  • Exercise Rehabilitation, Biomechanics & Cartilage Regeneration
January 1999 - September 2002
School of Sport Science, Exercise and Health, The University of Western Australia
Field of study
  • Exercise Rehabilitation

Publications

Publications (148)
Article
Full-text available
Introduction Exercise is recognised as integral in mitigating a myriad negative consequences of cancer treatment. However, its benefit within adolescent and young adult (AYA) cancer cohorts remains relatively under researched, and caution should be taken in extrapolating outcomes from adult and paediatric populations given AYA distinctly different...
Article
Background The treatment of symptomatic partial anterior cruciate ligament (ACL) tears remains controversial. This study investigated the clinical and functional outcome of patients undergoing selective posterolateral (PLB) or anteromedial (AMB) bundle reconstruction. Methods 55 consecutive patients underwent partial bundle reconstruction, of whic...
Article
Background Latissimus dorsi tendon transfer (LDTT) remains a surgical option for massive irreparable rotator cuff tears. Despite a lack of comparative studies, subscapularis insufficiency has been reported as a contraindication. This study investigated the clinical outcome at a minimum 2-years post-surgery, in patients undergoing LDTT with varied s...
Article
Objectives To investigate whether an accelerated rehabilitation pathway could enhance strength and functional symmetry after ACLR, without affecting laxity. Design Randomised Controlled Trial. Setting Private rehabilitation clinic. Participants 44 patients randomized to an ‘Accelerated’ (n = 22) or ‘Control’ (n = 22) rehabilitation intervention....
Article
Full-text available
Background: Total hip arthroplasty (THA) is common though the investigation of new prostheses requires a practical, step-wise introduction. This study reports the 2-year clinical results and periprosthetic bone mineral density (BMD) changes, along with a subset undergoing Radiostereometric analysis (RSA), in patients undergoing primary cemented TH...
Article
Full-text available
Mechanical loading to the knee joint results in a differential response based on the local capacity of the tissues (ligament, tendon, meniscus, cartilage, and bone) and how those tissues subsequently adapt to that load at the molecular and cellular level. Participation in cutting, pivoting, and jumping sports predisposes the knee to the risk of inj...
Article
Background Knee extensor strength deficits increase re-injury risk following anterior cruciate ligament reconstruction (ACLR). This study investigated whether isometric strength testing methods are a suitable alternative to isokinetic assessment for identifying knee extensor strength asymmetry. Methods This study recruited 22 patients at 9–12 mont...
Article
Full-text available
Background: Electromyography (EMG) is frequently used as a guide for exercise rehabilitation progression following rotator cuff repair. Knowledge of EMG activity during passive and active-assisted exercises may help guide clinicians when considering exercise prescription in the early post-operative period. Purpose: The purpose of this study was...
Article
PurposeTo compare the clinical and radiological outcomes in patients undergoing anterior cruciate ligament reconstruction (ACLR) with, or without, LARS augmentation.Methods One-hundred and thirty-six patients that underwent double-bundle ACLR with (DB Hams/LARS, n = 67), or without (DB Hams, n = 69), LARS augmentation, were assessed clinically and...
Conference Paper
Full-text available
Introduction & Aims: Rehabilitation after anterior cruciate ligament reconstruction (ACLR) is considered crucial in restoring strength and functional deficits. Lingering objective deficits, often evaluated via isokinetic dynamometry and functional hop capacity, are associated with an increased risk of re-injury upon return to sport (RTS). This stud...
Conference Paper
Full-text available
Abstract Title A prospective clinical evaluation of paediatric patients with open growth plates undergoing anterior cruciate ligament reconstruction combined with lateral extra-articular tenodesis. Authors PETER ANNEAR MD, FRACS1 Salar Sobhi MD1 Jay Ebert PhD2,3 1 Perth Orthopaedic and Sports Medicine Centre, 31 Outram Street, West Perth, Weste...
Article
Full-text available
Background High-quality evidence supports the integration of exercise to mitigate treatment-related side effects in a wide range of paediatric and adult cancer cohorts. However, the implementation of exercise in adolescent and young adult (AYA) cancer patients is yet to be explored in depth. FiGHTINGF!T is a randomised controlled cross over trial d...
Article
Background Lower limb strength asymmetry is associated with re-injury after anterior cruciate ligament reconstruction (ACLR). This study investigated limb symmetry indices (LSIs) during isokinetic knee extensor and flexor assessment after ACLR. Methods Overall, 25 patients underwent isokinetic knee extensor and flexor strength assessment, 9–12 mon...
Article
Full-text available
Background Few studies have reported the return-to-sports (RTS) rate in patients after augmentation of autologous anterior cruciate ligament reconstruction (ACLR) with the Ligament Augmentation and Reconstruction System (LARS). Purpose/Hypothesis The purpose of this study was to compare postoperative outcomes in patients who underwent ACLR with si...
Article
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Background Autograft choice in anterior cruciate ligament reconstruction (ACLR) remains controversial, with increasing interest in the usage of quadriceps tendon (QT) autograft versus traditional hamstring tendon (HT) use. The current study undertakes an in-depth review and comparison of the clinical and functional outcomes of QT and HT autografts...
Article
Background Hop performance and isokinetic knee extensor strength (IKES) asymmetry are associated with re-injury after anterior cruciate ligament reconstruction (ACLR). This study investigated deficits after ACLR, and which hop tests are most correlated with IKES and patient-reported outcome measures (PROMs). Methods 50 patients were assessed 9–12...
Article
A growing number of knee cartilage repair studies continue to be published, employing both traditional and also novel and emerging surgical methods. Marrow stimulation, osteochondral transplantation, and autologous chondrocyte implantation via varied surgical techniques and delivery methods exist, as well as isolated, or concomitant, realignment pr...
Article
Full-text available
Introduction Advanced hip imaging and surgical findings have demonstrated that a common cause of greater trochanteric pain syndrome (GTPS) is hip abductor tendon (HAT) tears. Traditionally, these patients have been managed non-operatively, often with temporary pain relief. More recently, there has been an increase in published work presenting the r...
Article
PurposeTo report 10-year outcomes and survivorship in patients undergoing bicompartmental knee arthroplasty (BCKA) using the Journey-Deuce prosthesis in a consecutive prospective case series.Methods Between November 2006 and November 2009, 41 patients with a mean age of 69.6 years (range 51–86) underwent 51 bicompartmental knee arthroplasties with...
Article
Full-text available
Background: Hop tests are commonly employed to evaluate functional limb symmetry after anterior cruciate ligament reconstruction (ACLR). Purpose: To investigate the ability of eight hop tests to identify functional limb asymmetry in patients after ACLR. Study design: Prospective cohort. Methods: Fifty patients were assessed 9-12 months follo...
Article
PurposeTo investigate the mid-term outcomes of an accelerated return to full weight bearing (WB) after matrix-induced autologous chondrocyte implantation (MACI).Methods This randomized study allocated 35 patients (37 knees) to a 6 week (n = 18) or 8 week (n = 19) return to full WB after MACI. Patients were evaluated pre-operatively and at 1, 2 and...
Article
Background: Matrix-induced autologous chondrocyte implantation (MACI) has demonstrated encouraging midterm clinical outcomes, although published studies presenting longer-term clinical and radiological outcomes, across varied tibiofemoral and patellofemoral graft locations, are scarce. Purpose: To present the clinical and radiological outcomes a m...
Chapter
Rehabilitation is a critical component of knee osteochondral surgical interventions. The aim of knee joint preservation rehabilitation is to provide a mechanical environment for healing responses that will facilitate the restoration of joint homeostasis and the return to optimal function. Rehabilitation is a stepwise process with load progressions...
Presentation
Arthroscopic Tendon Release for Iliopsoas Impingement after Total Hip Arthroplasty
Article
Full-text available
Purpose: To establish the magnetic resonance imaging (MRI) and operative incidence of ramp lesions in a consecutive group of patients who had undergone anterior cruciate ligament reconstruction (ACLR) and to propose a graded radiologic classification that seeks to define key preoperative features that most strongly correlate with arthroscopically c...
Preprint
Full-text available
Background High quality evidence supports the integration of exercise to mitigate treatment- related side effects in a wide range of paediatric and adult cancer cohorts. However, the implementation of exercise in adolescent and young adult (AYA) cancer patients is yet to be explored in depth. FiGHTINGF!T is a randomised controlled cross over trial...
Article
Background Rehabilitation contributes to post-operative success following reverse total shoulder arthroplasty; however, randomised trials comparing the effectiveness of rehabilitation following reverse total shoulder arthroplasty are lacking. This study sought to determine if early, active mobilisation targeting the deltoid and the external rotator...
Article
Full-text available
Introduction: Patients frequently have discomfort or difficulty with kneeling following anterior cruciate ligament reconstruction (ACLR). This study aimed to report the prevalence of, and reasons for, kneeling difficulty after ACLR with a hamstring autograft; and to investigate the association between the degree of kneeling difficulty, presence of...
Article
Background Accelerometers provide a new method to objectively measure recovery of movement and physical activity in patients following reverse total shoulder arthroplasty (RTSA) and may overcome common limitations associated with patient-reported outcome measures (PROMs). The aim of this study was to assess changes in upper limb movement using acce...
Article
Full-text available
Purpose To establish the magnetic resonance imaging (MRI) and operative incidence of ramp lesions in a consecutive group of patients who had undergone anterior cruciate ligament reconstruction (ACLR) and to propose a graded radiologic classification that seeks to define key preoperative features that most strongly correlate with arthroscopically co...
Article
Full-text available
Obesity-related osteoarthritis (OA) is a complex, multifactorial condition that can cause significant impact on patients’ quality of life. Whilst chronic inflammation, adipocytokines and metabolic factors are considered to be important pathogenic factors in obesity related OA, there has been limited investigation into the biomechanical impact of ob...
Conference Paper
Full-text available
TITLE: 7-10 year comparison of clinical and MRI-based outcomes after double bundle hamstrings or hamstrings/LARS hybrid anterior cruciate ligament reconstruction. ABSTRACT Background: A high rate of re-tear exists after primary anterior cruciate ligament reconstruction (ACLR), and lower limb strength and functional symmetry is considered imperat...
Article
Background: Returning to a satisfactory activity level is expected by patients after cartilage repair, and may define overall surgical success. Purpose: To investigate: 1) the level and improvement in activity in patients at two years after matrix-induced autologous chondrocyte implantation (MACI), 2) what factors are associated with post-operat...
Article
Full-text available
Background Hip abductor tendon (HAT) tearing is commonly implicated in greater trochanteric pain syndrome. Studies reporting surgical outcomes are often on small cohorts and with limited information on functional improvement. Purpose To report the 2-year clinical and functional outcomes in a series of patients undergoing HAT repair augmented with...
Article
Full-text available
Background: Anterior cruciate ligament reconstruction (ACLR) has a high incidence of re-tear in younger patients. Despite comparable functional outcomes, the incidence of re-tear using single and double bundle ACLR methods has not been well reported. Aim: To hypothesize that double bundle hamstring ACLR has a lower graft rupture rate compared wi...
Article
Full-text available
Abstract CONTEXT: The importance of rehabilitation and evaluation prior to return to sport (RTS) in patients undergoing anterior cruciate ligament reconstruction has been reported. OBJECTIVE: This study sought to investigate current perspectives of Australian orthopedic surgeons on rehabilitation and RTS evaluation. DESIGN: Survey. PARTICIPANTS: Me...
Article
Full-text available
Objective To compare the histological and immunohistochemical characteristics of matrix-assisted chondrocyte implantation (MACI) grafts between patients with revision surgery and patients with total joint arthroplasty. Methods Biopsies of MACI grafts from patients with revision and total joint arthroplasty. The graft tissue characteristics and sub...
Article
Full-text available
Background Returning to a sound level of activity after matrix-induced autologous chondrocyte implantation (MACI) is important to patients. Evaluating the patient’s level of satisfaction with his or her sports and recreational ability is critical. Purpose To investigate (1) satisfaction with sports and recreational ability after MACI and (2) the r...
Article
Full-text available
Context: The importance of rehabilitation and evaluation prior to return to sport (RTS) in patients undergoing anterior cruciate ligament reconstruction has been reported. Objective: This study sought to investigate current perspectives of Australian orthopedic surgeons on rehabilitation and RTS evaluation. Design: Survey. Participants: Memb...
Article
Background Longer term outcomes after matrix-induced autologous chondrocyte implantation (MACI) are lacking, while early postoperative weightbearing (WB) management has traditionally been conservative. Purpose To investigate the longer term clinical and radiological outcomes after an 8-week (vs 12-week) WB protocol after MACI. Study Design Random...
Presentation
Full-text available
Graft rupture rates in <20 yr olds �undergone double bundle hamstring ACL reconstructions An investigation of the high rates of graft failure in younger patients and the affect of double bbundle hamstring ACLR on the failure rates in this age group.
Conference Paper
Full-text available
Background: ACL tears are common, though partial injuries have been described that may still restrict the return of patients to sporting activities due to a persistent sensation of knee instability. This study sought to determine the outcome of partial bundle ACLR using autologous hamstrings.
Presentation
Full-text available
TITLE: Partial bundle anterior cruciate ligament reconstruction using autologous hamstrings ABSTRACT Background: ACL tears are common, though partial injuries have been described that may still restrict the return of patients to sporting activities due to a persistent sensation of knee instability. This study sought to determine the outcome of p...
Presentation
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Presentation
Full-text available
TITLE: Anterior cruciate ligament reconstruction using autologous hamstrings augmented with LARS provides good clinical scores, high levels of satisfaction and return to sport and a low re-tear rate at 2 years ABSTRACT Background: A number of surgical methods exist in undertaking anterior cruciate ligament reconstruction (ACLR), though relatively...
Article
Full-text available
Background There are a number of surgical methods for undertaking anterior cruciate ligament (ACL) reconstruction (ACLR), although relatively high rates of ipsilateral retears and contralateral tears exist, with only 65% of patients returning to their preinjury level of sport. ACLR techniques adopting synthetic augmentation have been proposed in an...
Article
Background Hip abductor tendon repair has demonstrated encouraging outcomes. The influence of fatty infiltration (FI) on outcome has not been explored. Purpose To investigate the association between preoperative hip abductor FI and clinical outcome after hip abductor tendon repair. Study Design Case series; Level of evidence, 4. Methods A total...
Article
Full-text available
Matrix-induced autologous chondrocyte implantation (MACI) has demonstrated encouraging clinical outcomes in the treatment of symptomatic knee chondral defects. However, longer term results are still lacking and post-operative management has traditionally been conservative, with little available evidence on how best to progressively increase weight...
Article
Cancer and its associated therapies can severely impact the physical and psychosocial functioning of adolescent and young adults (AYAs), both during treatment and well into survivorship. Physical activity during and after cancer treatment could be beneficial to the AYA population, although this cohort has received little scientific attention. A sys...
Article
Background: A lack of consensus exists on which patient-reported outcome measures (PROMs) best evaluate change following hip abductor tendon (HAT) repair. Objectives: To compare the responsiveness of the Victorian Institute for Sport Assessment for Gluteal Tendinopathy (VISA-G), Oxford Hip (OHS) and modified Harris Hip (mHHS) scores in patients...
Article
Purpose No quantitative test exists to reliably assess kneeling tolerance before and after surgery. The aim of this study was to validate a kneeling test, designed to quantify kneeling tolerance. Method A total of 179 participants (324 knees) were enrolled into the study, including 124 asymptomatic knees, 98 with osteoarthritis (OA), 85 following...
Article
Objectives: To investigate views and practices of Australian therapists on rehabilitation and return to sport (RTS) after anterior cruciate ligament reconstruction (ACLR). Design: Survey-based study. Setting: Online survey platform. Participants: Australian Physiotherapists and Accredited Exercise Physiologists (n = 223). Main outcome measures: 1)...
Article
Background: Physical therapy is considered routine practice following total shoulder arthroplasty. To date, current regimens are based on clinical opinion, with evidence-based recommendations. The aim of this systematic review was to evaluate the effectiveness of total shoulder arthroplasty physical therapy programmes with a view to inform current...
Article
Full-text available
Purpose To report outcomes following proximal hamstring reconstruction employing an ipsilateral distal hamstring tendon autograft, in patients with chronic proximal ruptures. Methods Six patients presenting with a chronic proximal hamstring avulsion and a medial time from injury of 11.0 months (range 7–18), confirmed via magnetic resonance imaging...
Presentation
Full-text available
This study documented the current perspectives on rehabilitation and RTS evaluation of Australian orthopaedic surgeons within the Australian Knee Society (AKS).
Presentation
Full-text available
The paper reports comparative outcomes including return to sport testing of hybrid and hamstring ACL reconstructions.
Presentation
Full-text available
The presentation reports the comparative outcomes of hybrid and hamstring graft ACLR. at 7-10 years looking at graft failure, re-operations and MRI WORMS score for osteoarthritis.
Article
Full-text available
Objectives: – A plethora of evidence-based research is emerging on the benefits of rehabilitation following anterior cruciate ligament reconstruction (ACLR), as well as the timing of return to sport (RTS) and importance of patient evaluation prior to RTS discharge. This study documented the current perspectives on rehabilitation and RTS evaluation...
Conference Paper
Full-text available
Background: A high rate of re-tear exists after primary anterior cruciate ligament reconstruction (ACLR), and lower limb strength and functional symmetry is considered imperative in minimizing the risk of re-tear. There are also concerns about the development of post-operative complications and early degenerative changes after ACLR surgery. Several...
Article
Full-text available
Purpose Delayed ligamentization following anterior cruciate ligament reconstruction (ACLR) may result in reduced graft stiffness and strength, and an increased risk of secondary re-tear. Remnant sparing ACLR may accelerate ligamentization and proprioceptive function, theoretically reducing re-injury risk. This study sought to investigate 10-year gr...