19 results on '"Rainbird, Sophia"'
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2. In Revision THA, Is the Re-revision Risk for Dislocation and Aseptic Causes Greater in Dual-mobility Constructs or Large Femoral Head Bearings? A Study from the Australian Orthopaedic Association National Joint Replacement Registry.
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Hoskins, Wayne, Rainbird, Sophia, Dyer, Chelsea, Graves, Stephen E., and Bingham, Roger
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FEMUR head , *ARTHROPLASTY , *REOPERATION , *HIP joint dislocation , *ASEPTIC & antiseptic surgery , *RANDOMIZED controlled trials , *TOTAL hip replacement , *ACQUISITION of data , *ARTIFICIAL joints , *OSTEOARTHRITIS , *ORTHOPEDICS , *PROSTHESIS design & construction , *COMPLICATIONS of prosthesis - Abstract
Background: Dislocation is one of the most common causes of a re-revision after a revision THA. Dual-mobility constructs and large femoral head bearings (≥ 36 mm) are known options for mitigating this risk. However, it is unknown which of these choices is better for reducing the risk of dislocation and all-cause re-revision surgery. It is also unknown whether there is a difference between dual-mobility constructs and large femoral head bearings according to the size of the acetabular component.Questions/purposes: We used data from a large national registry to ask: In patients undergoing revision THA for aseptic causes after a primary THA performed for osteoarthritis, (1) Does the proportion of re-revision surgery for prosthesis dislocation differ between revision THAs performed with dual-mobility constructs and those performed with large femoral head bearings? (2) Does the proportion of re-revision surgery for all aseptic causes differ between revision THAs performed with dual-mobility constructs and those performed with large femoral head bearings? (3) Is there a difference when the results are stratified by acetabular component size?Methods: Data from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) were analyzed for 1295 first-revision THAs for aseptic causes after a primary THA performed for osteoarthritis. The study period was from January 2008-when the first dual-mobility prosthesis was recorded-to December 2019. There were 502 dual-mobility constructs and 793 large femoral head bearings. There was a larger percentage of women in the dual-mobility construct group (67% [334 of 502]) compared with the large femoral head bearing group (51% [402 of 793]), but this was adjusted for in the statistical analysis. Patient ages were similar for the dual-mobility construct group (67 ± 11 years) and the large femoral head group (65 ± 12 years). American Society of Anesthesiologists (ASA) class and BMI distributions were similar. The mean follow-up was shorter for dual-mobility constructs at 2 ± 1.8 years compared with 4 ± 2.9 years for large femoral head bearings. The cumulative percent revision (CPR) was determined for a diagnosis of prosthesis dislocation as well as for all aseptic causes (excluding infection). Procedures using metal-on-metal bearings were excluded. The time to the re-revision was described using Kaplan-Meier estimates of survivorship, with right censoring for death or database closure at the time of analysis. The unadjusted CPR was estimated each year of the first 5 years for dual-mobility constructs and for each of the first 9 years for large femoral head bearings, with 95% confidence intervals using unadjusted pointwise Greenwood estimates. The apparent shorter follow-up of the dual-mobility construct group relates to the more recent increase in dual-mobility numbers recorded in the registry. The results were adjusted for age, gender, and femoral fixation. Results were subanalyzed for acetabular component sizes < 58 mm and ≥ 58 mm, set a priori on the basis of biomechanical and other registry data.Results: There was no difference in the proportion of re-revision for prosthesis dislocation between dual-mobility constructs and large femoral head bearings (hazard ratio 1.22 [95% CI 0.70 to 2.12]; p = 0.49). At 5 years, the CPR of the re-revision for prosthesis dislocation was 4.0% for dual mobility constructs (95% CI 2.3% to 6.8%) and 4.1% for large femoral head bearings (95% CI 2.7% to 6.1%). There was no difference in the proportion of all aseptic-cause second revisions between dual-mobility constructs and large femoral head bearings (HR 1.02 [95% CI 0.76 to 1.37]; p = 0.89). At 5 years, the CPR of dual-mobility constructs was 17.6% for all aseptic-cause second revision (95% CI 12.6% to 24.3%) and 17.8% for large femoral head bearings (95% CI 14.9% to 21.2%). When stratified by acetabular component sizes less than 58 mm and at least 58 mm, there was no difference in the re-revision CPR for dislocation or for all aseptic causes between dual-mobility constructs and large femoral head bearings.Conclusion: Either dual-mobility constructs or large femoral head bearings can be used in revision THA, regardless of acetabular component size, as they did not differ in terms of re-revision rates for dislocation and all aseptic causes in this registry study. Longer term follow-up is required to assess whether complications develop with either implant or whether a difference in revision rates becomes apparent. Ongoing follow-up and comparison in a registry format would seem the best way to compare long-term complications and revision rates. Future studies should also compare surgeon factors and whether they influence decision-making between prosthesis options and second revision rates. Nested randomized controlled trials in national registries would seem a viable option for future research.Level Of Evidence: Level III, therapeutic study. [ABSTRACT FROM AUTHOR]- Published
- 2022
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3. What Can We Learn From Surgeons Who Perform THA and TKA and Have the Lowest Revision Rates? A Study from the Australian Orthopaedic Association National Joint Replacement Registry.
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Hoskins, Wayne (Hons), FRACS,, Rainbird, Sophia, Hoskins, Wayne, Lorimer, Michelle, Graves, Stephen E, and Bingham, Roger
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ARTHROPLASTY , *SURGEONS , *PLICA syndrome , *REOPERATION , *PERIPROSTHETIC fractures , *CONFIDENCE intervals , *RESEARCH , *TOTAL knee replacement , *TOTAL hip replacement , *RESEARCH methodology , *ACQUISITION of data , *EVALUATION research , *COMPARATIVE studies , *QUESTIONNAIRES , *PROSTHESIS design & construction , *COMPLICATIONS of prosthesis - Abstract
Background: Long-term implant survivorship in THA and TKA involves a combination of factors related to the patient, the implants used, and the decision-making and technical performance of the surgeon. It is unclear which of these factors is the most important in reducing the proportion of revision surgery.Questions/purposes: We used data from a large national registry to ask: In patients receiving primary THA and TKA for a diagnosis of osteoarthritis, do (1) the reasons for revision and (2) patient factors, the implants used, and the surgeon or surgical factors differ between surgeons performing THA and TKA who have a lower revision rate compared with all other surgeons?Methods: Data were analyzed for all THA and TKA procedures performed for a diagnosis of osteoarthritis from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) from September 1, 1999, when collection began, to December 31, 2018. The AOANJRR obtains data on more than 98% of joint arthroplasties performed in Australia. The 5-year cumulative percent revision (CPR) was identified for all THAs and TKAs performed for a diagnosis of osteoarthritis with 95% confidence intervals (overall CPR); the 5-year CPR with 95% CIs for each surgeon was calculated for THA and TKA separately. For surgeons to be included in the analysis, they had to have performed at least 50 procedures and have a 5-year CPR. The 5-year CPR with 95% CIs for each THA and TKA surgeon was compared with the overall CPR. Two groups were defined: low revision rate surgeons (the upper confidence level for a given surgeon at 5 years is less than 3.84% for THA and 4.32% for TKA), and all other surgeons (any surgeon whose CPR was higher than those thresholds). The thresholds were determined by setting a cutoff at 20% above the upper confidence level for that class. The approach we used to define a low revision rate surgeon was similar to that used by the AOANJRR for determining the better-performing prostheses and is recommended by the International Prosthesis Benchmarking Working Group. By defining the groups in this way, a significant difference between these two groups is created. Determining a reason for this difference is the purpose of presenting the proportions of different factors within each group. The study group for THA included 116 low revision rate surgeons, who performed 88,392 procedures (1619 revised, 10-year CPR 2.7% [95% CI 2.6% to 2.9%]) and 433 other surgeons, who performed 170,094 procedures (6911 revised, 10-year CPR 5.9% [95% CI 5.7% to 6.0%]). The study group for TKA consisted of 144 low revision rate surgeons, who performed 159,961 procedures (2722 revised, 10-year CPR 2.6% [95% CI 2.5% to 2.8%]) and 534 other surgeons, who performed 287,232 procedures (12,617 revised, 10-year CPR 6.4% [95% CI 6.3% to 6.6%]). These groups were defined a priori by their rate of revision, and the purpose of this study was to explore potential reasons for this observed difference.Results: For THA, the difference in overall revision rate between low revision rate surgeons and other surgeons was driven mainly by fewer revisions for dislocation, followed by component loosening and fracture in patients treated by low revision rate surgeons. For TKA, the difference in overall revision rate between low revision rate surgeons and other surgeons was driven mainly by fewer revisions for aseptic loosening, followed by instability and patellofemoral complications in patients treated by low revision rate surgeons. Patient-related factors were generally similar between low revision rate surgeons and other surgeons for both THA and TKA. Regarding THA, there were differences in implant factors, with low revision rate surgeons using fewer types of implants that have been identified as having a higher-than-anticipated rate of revision within the AOANJRR. Low revision rate surgeons used a higher proportion of hybrid fixation, although cementless fixation remained the most common choice. For surgeon factors, low revision rate surgeons were more likely to perform more than 100 THA procedures per year, while other surgeons were more likely to perform fewer than 50 THA procedures per year. In general, the groups of surgeons (low revision rate surgeons and other surgeons) differed less in terms of years of surgical experience than they did in terms of the number of cases they performed each year, although low revision rate surgeons, on average, had more years of experience and performed more cases per year. Regarding TKA, there were more differences in implant factors than with THA, with low revision rate surgeons more frequently performing patellar resurfacing, using an AOANJRR-identified best-performing prosthesis combination (with the lowest rates of revision), using fewer implants that have been identified as having a higher-than-anticipated rate of revision within the AOANJRR, using highly crosslinked polyethylene, and using a higher proportion of cemented fixation compared with other surgeons. For surgeon factors, low revision rate surgeons were more likely to perform more than 100 TKA procedures per year, whereas all other surgeons were more likely to perform fewer than 50 procedures per year. Again, generally, the groups of surgeons (low revision rate surgeons and other surgeons) differed less in terms of years of surgical experience than they did in terms of the number of cases they performed annually, although low revision rate surgeons, on average, had more years of experience and performed more cases per year.Conclusion: THAs and TKAs performed by surgeons with the lowest revision rates in Australia show reductions in all of the leading causes of revision for both THA and TKA, in particular, causes of revision related to the technical performance of these procedures. Patient factors were similar between low revision rate surgeons and all other surgeons for both THA and TKA. Low revision rate THA surgeons were more likely to use cement fixation selectively. Low revision rate TKA surgeons were more likely to use patella resurfacing, crosslinked polyethylene, and cemented fixation. Low revision rate THA and TKA surgeons were more likely to use an AOANJRR-identified best-performing prosthesis combination and to use fewer implants identified by the AOANJRR as having a higher-than-anticipated revision rate. To reduce the rate of revision THA and TKA, surgeons should consider addressing modifiable factors related to implant selection. Future research should identify surgeon factors beyond annual case volume that are important to improving implant survivorship.Level Of Evidence: Level III, therapeutic study. [ABSTRACT FROM AUTHOR]- Published
- 2022
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4. Improvements in physical function and pain sustained for up to 10 years after knee or hip arthroplasty irrespective of mental health status before surgery.
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(Geeske) Peeters, G M E E, Rainbird, Sophia, Lorimer, Michelle, Dobson, Annette J, Mishra, Gita D, and Graves, Stephen E
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HEALTH surveys , *LONGITUDINAL method , *MENTAL health , *PAIN , *QUESTIONNAIRES , *TOTAL hip replacement , *TOTAL knee replacement - Abstract
Background and purpose — There are concerns that mental health (MH) may influence outcomes of total knee arthroplasty (TKA) or total hip arthroplasty (THA). We examined effects of poor MH before surgery on long-term outcomes of osteoarthritis-related TKA or THA in women. Patients and methods — The data were from 9,737 middle-aged participants (47–52 years) and 9,292 older participants (73–78 years) in the Australian Longitudinal Study on Women’s Health who completed surveys between 1998 and 2013. Dates of arthroplasties were obtained from the Australian Orthopaedics Association National Joint Replacement Registry. Participants without procedures were matched with participants with procedures. Trajectories of the Short-Form 36 scores for physical functioning, bodily pain, social functioning, and mental health based on mixed modeling were plotted for participants with and without surgery (stratified according to mental health, separately for TKA and THA, and for middle-aged and older participants). Results — In middle-aged women with poor and good MH, TKA improved physical function and reduced bodily pain, with improvements sustained up to 10 years after surgery. TKA contributed to restoration of social function in women with good MH, but this was less clear in women with poor MH. In both MH groups, mental health appeared to be unaffected by TKA. Similar patterns were observed after THA, and in older women. Interpretation — Recovery of physical and social function and reductions in pain were sustained for up to 10 years after surgery. Improvements in physical function and pain were also observed in women with poor mental health. Thus, in our view poor mental health should not be a contraindication for arthroplasty. [ABSTRACT FROM AUTHOR]
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- 2017
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5. Are you fit to continue? Approaching rail systems thinking at the cusp of safety and the apex of performance.
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Naweed, Anjum, Rainbird, Sophia, and Dance, Craig
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RAILROAD safety measures , *CUSP forms (Mathematics) , *RAILROAD accidents , *RAILROAD trains , *RAILROAD signals , *SAFETY - Abstract
The incidence of driving a train through a stop signal continues to have implications for safety on railways. Industry rulebooks advise how to manage these events, but there has been very little investigation of causality from the systems-view. The increasing trend for maximising rail capacities could be exacerbating the issue and warrants investigation from this perspective to determine the factors impinging on safety decisions in train driving. A participative research approach incorporating cab rides, focus groups, and a generative scenario simulation exercise was used to investigate how train movements and safety risk was managed, and the implications of this on the rail organisation. Twenty-eight train drivers participated from eight passenger rail organisations across Australia and New Zealand. Inductive thematic analysis of the data revealed factors associated with (1) changes to signal meaning, (2) the nature of the driver-signal relationship, and (3) the confounding practice of asking a driver if they were “fit to continue” driving after going through a stop signal. The findings reflected a strong pattern of a normalisation of deviance. The results are discussed in terms of the mechanisms underlying the observed phenomenon and a model outlining prospective solutions for future research is presented to contribute to the development of novel ideas for further thinking and research. [ABSTRACT FROM AUTHOR]
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- 2015
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6. The mall, the library and the church: inquiring into the resourcing of early learning through new spaces and networks.
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Nichols, Sue and Rainbird, Sophia
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SOCIAL policy , *EDUCATIONAL programs , *EDUCATION research , *ECOLOGICAL surveys , *ACTOR-network theory , *PROGRAM design (Education) - Abstract
Early learning has increasingly been the focus of social policy and programmes with a proliferation of public, community and commercial entities entering the field of production. Understanding this phenomenon requires educational researchers to conceptualise early learning both within a globalised network of circulating commodities and within specific situated spaces of local sociocultural practice. This paper describes how a research project has drawn on geosemiotic and actor-network theories, and employed spatially sensitive methods, to investigate the resourcing of early learning in spaces new to most educational researchers. Focusing on the suburban field site ‘Midburb’, we analyse the ways in which discourses operate through/in place producing different entry points, pathways and access for parents, impacting on their opportunities for encountering early learning resources. [ABSTRACT FROM PUBLISHER]
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- 2013
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7. Asylum seeker ‘vulnerability’: the official explanation of service providers and the emotive responses of asylum seekers.
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Rainbird, Sophia
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POLITICAL refugees -- Social conditions , *MINORITIES , *PUBLIC administration , *SOCIAL problems , *GOVERNMENT aid , *COMMUNITIES , *SOCIAL history - Abstract
This paper explores the way in which service providers in East Anglia, a region of the United Kingdom, in 2002–2003 represent asylum seekers as problematic, isolated, and largely vulnerable dependents. In doing so, support organizations assume an exclusive position of expertise and knowledge of asylum seekers' predicaments. This exclusivity can be understood as the ‘official explanation’ [Spivak, G. C. (1987) In Other Worlds: Essays in Cultural Politics, Methuen, New York/London, p. 114] put forth by organizations in order to ensure that they maintain a degree of influence in government policy, as well as to ensure a competitive edge in the arena of service provision, and to lobby and advocate the needs of asylum seekers. This paper explores the paradox of an organized system of support that works to assist asylum seekers to be independent and yet in doing so represents asylum seekers as dependent and excludes them from decision-making processes. However, by considering asylum seekers' speech-acts, we can recognize that what they talk about is in itself a strategy employed to push the boundaries of their predicament and to negotiate a possible future. In doing so, the development of an active dialogue between asylum seekers and the services that assist them can be considered. [ABSTRACT FROM PUBLISHER]
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- 2012
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8. Distrust and Collaboration: Exploring Identity Negotiation among Asylum Seekers in East Anglia, Britain.
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Rainbird, Sophia
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POLITICAL refugees , *SUSPICION , *ETHNICITY - Abstract
Drawing on fieldwork carried out in 2002–2003, this paper reveals the complexity of interactions between asylum seekers in East Anglia as they negotiate the shared experience of place, the British immigration system and a common and competitive goal of attaining refugee status. There is tension and a distrust generated by people who are forced to live in an inter-ethnic community and share the competitive goal of obtaining immigration status. Yet, this forced coexistence forges strong friendships, alliances and collaboration amongst asylum seekers. It is in taking into account these seemingly contradictory interactions that marks the concern of this paper; the more that asylum seekers attempt to distance and differentiate themselves from the collective and shared identity of asylum seekers, the more entangled they become within a collective asylum seeker identity. This struggle tells us that the very contestation of an asylum seeker identity is a form of resistance put forth by asylum seekers to address an identity that is largely imposed by the state and host society. This has broader implications on the extent to which an imposed identity and its resistance impact on the successful integration of asylum seekers and refugees into larger society. [ABSTRACT FROM AUTHOR]
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- 2012
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9. ‘Literacy nooks’: Geosemiotics and domains of literacy in home spaces.
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Rainbird, Sophia and Rowsell, Jennifer
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LITERACY , *SEMIOTICS , *EARLY childhood education , *PARENTING , *PRESCHOOL education - Abstract
Conceptualizations of the home have changed, particularly in respect to children’s rearing and development. An increased awareness of early intervention in meeting a child’s learning needs has filtered down into the organization of space in homes. Maximizing learning opportunities by creating ‘literacy nooks’, which involves carving out interactive domains in the home, has become a way of asserting parental agency in their children’s development. The Parents’ Networks project is an Australian Research Council (ARC) funded project that focuses on how specific locales, such as commercial retail outlets, playgroups, libraries, health services and home spaces, have become networks of information sourcing and learning. This paper refers to a sub-project derived from this larger study that focuses specifically on the home space. We suggest that within the home space, parents construct learning environments for preschool children based on concepts of ‘good’ parenting. Four case studies of family homes in the US town of Greystone (pseudonym) are presented, exploring how space is arranged to produce an environment conducive to learning and development. In this article, we locate interview and observational data within space theory to posit how learning is mobilized within and across home environments. [ABSTRACT FROM PUBLISHER]
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- 2011
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10. Reduced Revision Rates in Total Shoulder Arthroplasty With Crosslinked Polyethylene: Results From the Australian Orthopaedic Association National Joint Replacement Registry.
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Page, Richard S., Alder-Price, Angela C., Rainbird, Sophia, Graves, Stephen E., de Steiger, Richard N., Peng, Yi, Holder, Carl, Lorimer, Michelle F., and Gill, Stephen D.
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TOTAL shoulder replacement , *ARTHROPLASTY , *POLYETHYLENE , *TOTAL hip replacement , *PROPORTIONAL hazards models , *SHOULDER , *TOTAL knee replacement , *PHENOLS , *ACQUISITION of data , *TREATMENT effectiveness , *OSTEOARTHRITIS , *BENZOPYRANS , *REOPERATION , *ORTHOPEDICS , *PROSTHESIS design & construction , *COMPLICATIONS of prosthesis - Abstract
Background: Loss of glenoid fixation is a key factor affecting the survivorship of primary total shoulder arthroplasty (TSA). It is not known whether the lower revision rates associated with crosslinked polyethylene (XLPE) compared with those of non-XLPE identified in hip and knee arthroplasty apply to shoulder arthroplasty.Questions/purposes: We used data from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) to compare the revision rates of primary stemmed anatomic TSA using XLPE to procedures using non-XLPE. In patients receiving a primary stemmed anatomic TSA for osteoarthritis, we asked: (1) Does the rate of revision or reason for revision vary between XLPE and non-XLPE all-polyethylene glenoid components? (2) Is there any difference in the revision rate when XLPE is compared with non-XLPE across varying head sizes? (3) Is there any difference in survival among prosthesis combinations with all-polyethylene glenoid components when they are used with XLPE compared with non-XLPE?Methods: Data were extracted from the AOANJRR from April 16, 2004, to December 31, 2020. The AOANJRR collects data on more than 97% of joint replacements performed in Australia. The study population included all primary, stemmed, anatomic TSA procedures performed for osteoarthritis using all-polyethylene glenoid components. Procedures were grouped into XLPE and non-XLPE bearing surfaces for comparison. Of the 10,102 primary stemmed anatomic TSAs in the analysis, 39% (3942 of 10,102) used XLPE and 61% (6160 of 10,102) used non-XLPE. There were no differences in age, gender, or follow-up between groups. Revision rates were determined using Kaplan-Meier estimates of survivorship to describe the time to the first revision, with censoring at the time of death or closure of the database at the time of analysis. Revision was defined as removal, replacement, or addition of any component of a joint replacement. The unadjusted cumulative percent revision after the primary arthroplasty (with 95% confidence intervals [CIs]) was calculated and compared using Cox proportional hazard models adjusted for age, gender, fixation, and surgeon volume. Further analyses were performed stratifying according to humeral head size, and a prosthesis-specific analysis adjusted for age and gender was also performed. This analysis was restricted to prosthesis combinations that were used at least 150 times, accounted for at least four revisions, had XLPE and non-XLPE options available, and had a minimum of 3 years of follow-up.Results: Non - XLPE had a higher risk of revision than XLPE after 1.5 years (HR 2.3 [95% CI 1.6 to 3.1]; p < 0.001). The cumulative percent revision at 12 years was 5% (95% CI 4% to 6%) for XLPE and 9% (95% CI 8% to 10%) for non-XLPE. There was no difference in the rate of revision for head sizes smaller than 44 mm. Non-XLPE had a higher rate of revision than XLPE for head sizes 44 to 50 mm after 2 years (HR 2.3 [95% CI 1.5 to 3.6]; p < 0.001) and for heads larger than 50 mm for the entire period (HR 2.2 [95% CI 1.4 to 3.6]; p < 0.001). Two prosthesis combinations fulfilled the inclusion criteria for the prosthesis-specific analysis. One had a higher risk of revision when used with non-XLPE compared with XLPE after 1.5 years (HR 3.7 [95% CI 2.2 to 6.3]; p < 0.001). For the second prosthesis combination, no difference was found in the rate of revision between the two groups.Conclusion: These AOANJRR data demonstrate that noncrosslinked, all-polyethylene glenoid components have a higher revision rate compared with crosslinked, all-polyethylene glenoid components when used in stemmed anatomic TSA for osteoarthritis. As polyethylene type is likely an important determinant of revision risk, crosslinked polyethylene should be used when available, particularly for head sizes larger than 44 mm. Further studies will need to be undertaken after larger numbers of shoulder arthroplasties have been performed to determine whether this reduction in revision risk associated with XLPE bears true for all TSA designs.Level Of Evidence: Level III, therapeutic study. [ABSTRACT FROM AUTHOR]- Published
- 2022
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11. No Pet or Their Person Left Behind: Increasing the Disaster Resilience of Vulnerable Groups through Animal Attachment, Activities and Networks.
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Thompson, Kirrilly, Every, Danielle, Rainbird, Sophia, Cornell, Victoria, Smith, Bradley, and Trigg, Joshua
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NATURAL disasters & society , *PSYCHOLOGICAL vulnerability , *COMMUNITIES , *ATTACHMENT behavior , *EMERGENCY management , *ANIMAL social behavior - Abstract
Increased vulnerability to natural disasters has been associated with particular groups in the community. This includes those who are considered de facto vulnerable (children, older people, those with disabilities etc.) and those who own pets (not to mention pets themselves). The potential for reconfiguring pet ownership from a risk factor to a protective factor for natural disaster survival has been recently proposed. But how might this resilience-building proposition apply to vulnerable members of the community who own pets or other animals? This article addresses this important question by synthesizing information about what makes particular groups vulnerable, the challenges to increasing their resilience and how animals figure in their lives. Despite different vulnerabilities, animals were found to be important to the disaster resilience of seven vulnerable groups in Australia. Animal attachment and animal-related activities and networks are identified as underexplored devices for disseminating or 'piggybacking' disaster-related information and engaging vulnerable people in resilience building behaviors (in addition to including animals in disaster planning initiatives in general). Animals may provide the kind of innovative approach required to overcome the challenges in accessing and engaging vulnerable groups. As the survival of humans and animals are so often intertwined, the benefits of increasing the resilience of vulnerable communities through animal attachment is twofold: human and animal lives can be saved together. [ABSTRACT FROM AUTHOR]
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- 2014
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12. 'We're so lucky': meeting challenges to deliver benefits to children in immigration detention.
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Every, Danielle, Thompson, Kirrilly, Rainbird, Sophia, Whetton, Steve, Procter, Nicholas, Abdul-Halim, Suraya, and Sebben, Bianca
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DETENTION facilities , *MOUNTAINS , *ETHNOLOGY , *POLITICAL refugees , *EMIGRATION & immigration , *QUALITATIVE research , *SOCIAL justice - Abstract
Under pressure from crowded immigration detention centres and an election commitment to remove children from detention, in 2010 the Australian government opened a low security immigration detention facility for families and children in the Adelaide Hills. Children from this alternative place of detention (APOD) attend nine local schools. However, many local residents feared their enrolment would create conflict, reduce educational outcomes for local students, and overburden teachers and school resources. To answer these concerns we conducted an ethnography of the schools and interviewed school teachers, principals, parents, the education managers in the Department of Immigration and Citizenship (DIAC) and the Department of Education and Children's Services (DECS). This paper reports our findings on the impacts of the new arrivals on school finances, teacher time and resources, the local children, and the broader Hills community. As did previous quantitative studies, we found no negative effects. Rather, the new arrivals created a newly enriched learning environment and social experiences. The schools also played an integral role in changing the initially hostile community attitudes towards asylum seekers. Our qualitative research approach allowed us to explore factors that created this outcome. We found that the absence of negative impacts was the result of the funding for specialised support staff, the social justice orientation of the school's leaders and staff, and a school-wide commitment to values of inclusivity and diversity. This research provides further empirical evidence on the impacts of immigration on education, increases our understanding of the factors that mediate these impacts, and provides a useful case study for schools that teach asylum seeker children. [ABSTRACT FROM AUTHOR]
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- 2014
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13. The social and economic impacts of immigration detention facilities: a South Australian case study.
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Every, Danielle, Whetton, Steve, Rainbird, Sophia, Suraya Abdul Halim, Procter, Nicholas, Sebben, Bianca, and Thompson, Kirrilly
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ECONOMIC impact analysis , *SOCIAL impact assessment , *EMIGRATION & immigration , *RHETORIC & politics , *COMMUNITIES ,SOCIAL conditions in Australia - Abstract
The negative attitudes fostered by political rhetoric against asylum seekers create significant problems when asylum seekers are housed within communities. Much of the community's opposition focuses on the perceived economic and social impacts of large numbers of asylum seekers. However, we currently lack research on the local economic and social impacts of asylum seekers. As a contribution to this evidence base our paper outlines a South Australian case study of the impact of a low security immigration detention facility on the local economy, health services and social cohesion. Our impact assessment found that community concerns were not borne out. There were increases in employment and local expenditure, no reduction in health care services or access, and tensions between residents subsided, as did initially strong reactions against the asylum seekers themselves. The minimal impacts were due to the government and community interventions such as seeking local contracts and providing onsite health services. This case study is used to provide some guidelines for other communities to effectively target the fears that matter most to the community -- either through disseminating information that reduces fears and myths, or through planning and interventions that minimise negative impacts and enhance positive benefits. In this way, the arrival of asylum seekers can potentially become one that benefits all community members. [ABSTRACT FROM AUTHOR]
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- 2013
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14. A Comparison of Revision Rates for Osteoarthritis of Primary Reverse Total Shoulder Arthroplasty to Primary Anatomic Shoulder Arthroplasty with a Cemented All-polyethylene Glenoid: Analysis from the Australian Orthopaedic Association National Joint Replacement Registry.
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Gill, David R. J., Page, Richard S., Graves, Stephen E., Rainbird, Sophia, Hatton, Alesha, and Page BMedSci, Richard S
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PROPORTIONAL hazards models , *RHEUMATOID arthritis diagnosis , *GENDER , *OSTEOARTHRITIS , *PROSTHETICS , *RESEARCH , *BONE cements , *RESEARCH methodology , *POLYETHYLENE , *ACQUISITION of data , *MEDICAL cooperation , *EVALUATION research , *COMPARATIVE studies , *REOPERATION , *COMPLICATIONS of prosthesis - Abstract
Background: There has been decreased use of anatomic total shoulder arthroplasty (aTSA) because reverse TSA (rTSA) is increasingly being used for the same indications. Although short-term studies generally have not found survivorship differences between these implant designs, these studies are often small and their follow-up is limited to the short term. Likewise, the degree to which patient characteristics (such as gender, age, and American Society of Anesthesiologists [ASA] score) may or may not be associated with survivorship differences calls for larger and longer-term studies than is often possible in single-center designs. Large national registry studies may be able to help answer these questions.Questions/purposes: By analyzing a large Australian registry series of primary aTSAs with cemented all-polyethylene glenoids and rTSA for osteoarthritis (OA), we asked: (1) Is the revision risk for OA higher for aTSA with all-polyethylene glenoids or for rTSA, adjusting for patient characteristics such as age, gender, ASA score, and BMI? (2) Is the patient's gender associated with differences in the revision risk after controlling for the potentially confounding factors of age, ASA score, and BMI?Methods: In this comparative, observational registry study performed between January 1, 2015, and December 31, 2019, all primary aTSAs with all-polyethylene glenoids and rTSA for OA as determined by the treating surgeon and reported to our national registry formed two groups for analysis. The study period was set to time-match for the collection of ASA score and BMI in 2012 and 2015, respectively. Our registry enrolls more than 97% of all shoulder arthroplasties undertaken in Australia. There were 29,294 primary shoulder arthroplasties; 1592 hemiarthroplasties, 1876 resurfacing and stemless shoulders, 269 stemmed, and 11,674 reverse shoulder arthroplasties were excluded for other diagnoses. A total of 1210 metal-backed glenoids in stemmed aTSA for OA were excluded. A total of 3795 primary aTSAs with all-polyethylene glenoids and 8878 primary rTSAs for OA were compared. An aTSA with an all-polyethylene glenoid and rTSA were more likely to be performed in women (56% and 61% of patients, respectively). The mean age was 69 ± 8 years for aTSA with all-polyethylene glenoids and 74 ± 8 years for rTSA. One aTSA for OA was performed in a patient with an unknown glenoid type. The ASA score (n = 12,438) and BMI (n = 11,233) were also recorded. The maximum follow-up was 5 years for both groups, and the mean follow-up was 2.6 ± 1.4 years for aTSA with all-polyethylene glenoids and 2.1 ± 1.4 years for rTSA. The endpoint was time to revision (all causes), and the cumulative percent revision was determined using Kaplan-Meier estimates of survivorship (time to revision) and HRs from Cox proportional hazard models that were adjusted for age, gender, ASA score, and BMI category.Results: Overall, there were no differences in the 4-year cumulative percent revision between the groups; the 4-year cumulative percent revision was 3.5% for aTSA with all-polyethylene glenoids (95% CI 2.9%-4.2%) and 3.0% for rTSA (95% CI 2.6%-3.5%). There was an increased risk of revision of rTSA compared with aTSA using all-polyethylene glenoids in the first 3 months (HR 2.17 [95% CI 1.25-3.70]; p = 0.006, adjusted for age, gender, ASA score, and BMI). After that time, there was no difference in the rate of revision, with the same adjustments. In the first 3 months, men undergoing rTSA had a higher rate of revision than men with aTSA using all-polyethylene glenoids (HR 4.0 [95% CI 1.72-9.09]; p = 0.001, adjusted for age, BMI, and ASA). There was no difference between men in the two groups after that time. Women with aTSA using all-polyethylene glenoids were at a greater risk of revision than women with rTSA from 3 months onward (HR 2.77 [95% CI 1.55-4.92]; p < 0.001, adjusted for age, BMI, and ASA), with no difference before that time.Conclusion: Given the absence of survivorship differences at 4 years between rTSA and aTSA, but in light of the differences in the revision risk between men and women, surgeons might select an aTSA with an all-polyethylene glenoid to treat OA, despite the current popularity of rTSA. However, there are survivorship differences between genders. Future studies should evaluate whether our comparative findings are replicated in men and women undergoing aTSA with all-polyethylene glenoids and rTSA for primary diagnoses such as rheumatoid arthritis or post-traumatic arthritis, and whether there are functional differences between the two implant designs when used for OA.Level Of Evidence: Level III, therapeutic study. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF
15. The rate of 2nd revision for shoulder arthroplasty as analyzed by the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR).
- Author
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Gill, David R J, Page, Richard S, Graves, Stephen E, Rainbird, Sophia, and Hatton, Alesha
- Subjects
- *
SHOULDER surgery , *CONFIDENCE intervals , *REVERSE total shoulder replacement , *RISK assessment , *TREATMENT failure , *TREATMENT effectiveness , *COMPARATIVE studies , *REOPERATION , *KAPLAN-Meier estimator , *HUMERUS , *DESCRIPTIVE statistics , *TOTAL shoulder replacement , *PROPORTIONAL hazards models - Abstract
Background and purpose — The increase in shoulder arthroplasty may lead to a burden of revision surgery. This study compared the rate of (2nd) revision following aseptic 1st revision shoulder arthroplasty, considering the type of primary, and the class and type of the revision. Patients and methods — All aseptic 1st revisions of primary total reverse shoulder arthroplasty (rTSA group) and of primary total stemmed and stemless total shoulder arthroplasty (non-rTSA group) procedures reported to our national registry between April 2004 to December 2018 were included. The rate of 2nd revision was determined using Kaplan–Meier estimates and comparisons were made using Cox proportional hazards models. Results — There was an increased risk of 2nd revision in the 1st month only for the rTSA group (n = 700) compared with the non-rTSA group (n = 991); hazard ratio (HR) = 4.8 (95% CI 2.2–9). The cumulative percentage of 2nd revisions (CPR) was 24% in the rTSA group and 20% in the non-rTSA group at 8 years. There was an increased risk of 2nd revision for the type (cup vs. head) HR = 2.2 (CI 1.2–4.2), but not class of revision for the rTSA group. Minor (> 3 months) vs. major class revision, and humeral revision vs. all other revision types were second revision risk factors for the non-rTSA group. Interpretation — The CPR of revision shoulder arthroplasty was > 20% at 8 years and was influenced by the type of primary, the class, and the type of revision. The most common reasons for 2nd revision were instability/dislocation, loosening, and infection. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
16. Is the Survivorship of Birmingham Hip Resurfacing Better Than Selected Conventional Hip Arthroplasties in Men Younger Than 65 Years of Age? A Study from the Australian Orthopaedic Association National Joint Replacement Registry.
- Author
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Stoney, James, Graves, Stephen E., de Steiger, Richard N., Rainbird, Sophia, Kelly, Thu-Lan, and Hatton, Alesha
- Subjects
- *
FEMORACETABULAR impingement , *DENTAL ceramic metals , *PROPORTIONAL hazards models , *TIME of death , *FEMUR head , *TOTAL hip replacement , *OLDER patients ,ACETABULUM surgery - Abstract
Background The Birmingham Hip Resurfacing (BHR) prosthesis is the most commonly used metal-on-metal hip resurfacing arthroplasty device. The current manufacturer-recommended target demographic for the BHR is male patients, younger than 65 years requiring a femoral head size of ≥ 50 mm. Female patients, older patients, and individuals with smaller femoral-head diameter (≤ 50 mm) are known to have higher revision rates. Prior studies suggest that the survivorship of the BHR when used in the target demographic is comparable with that of primary conventional THA, but comparing survivorship of the most durable hip resurfacing arthroplasty device to the survivorship of all conventional THA prostheses is not ideal because the THA group comprises a large number of different types of prostheses that have considerable variation in prosthesis survival. A more informative comparison would be with the THA implants with the best survivorship, as this might help address the question of whether survivorship in the BHR target population can be improved by using a well-performing conventional THA. Questions/purposes We compared the difference in cumulative percent revision, reasons for revision and types of revision for procedures reported to the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) using the BHR prosthesis (femoral-head size > 50 mm) and three conventional THA prostheses identified as having the lowest 10-year cumulative percent revision in the currently recommended BHR target population to ask: (1) Does the BHR have a lower cumulative revision rate than the group of three conventional THA prostheses? (2) Is there a difference in the revision diagnosis between the BHR and the three best conventional THA prostheses? (3) What is the difference in the components used for a revision of a BHR compared with the three best conventional THA prostheses? Methods Data reported to the AOANJRR between September 1, 1999 and December 31, 2018 was used for this analysis. This study period includes almost the entire use of the BHR in Australia. The AOANJRR is a large national joint registry with almost 100% completeness, high accuracy, rigorous validation, and little to no loss to follow-up. The study population included males younger than 65 years that had received one hip replacement procedure for osteoarthritis. All patients with bilateral procedures, no matter the time interval between hips, were excluded. Only BHR prostheses with a femoral-head size ≥ 50 mm and conventional THA prostheses with femoral head sizes ≥ 32 mm and either ceramic-on-ceramic or metal, ceramic, ceramicized metal-on-crosslinked polyethylene (XLPE) bearings were included. These femoral head sizes and bearings were selected because they reflect modern conventional THA practice. There is no difference in the revision rate of these bearings in the AOANJRR. There were 4790 BHR procedures and 2696 conventional THA procedures in the study group. The mean (± SD) age for BHR procedures was 52 ± 7.8 years and 56 ± 7.1 years for conventional THA procedures. All comparative analyses were adjusted for age. Other demographics data including American Society Anesthesiologists (ASA) score and BMI were only included in AOANJRR data collection since 2012 and 2015, respectively, and have not been included in this analysis because of the low use of BHR in Australia since that time. The maximum follow-up was 18.7 years for both groups and mean follow-up of 11.9 years for the BHR and 9.3 years for the conventional THA group. Revision rates were determined using Kaplan-Meier estimates of survivorship to describe the time to the first revision, with censoring at the time of death or closure of the database at the time of analysis. A revision was defined as removal, replacement or addition of any component of a joint replacement. Revisions can be further classified as major revisions (removal of a component articulating with bone—usually the stem and/or the shell) or minor revisions (removal of other components—usually the head and/or the liner). The unadjusted cumulative percent revision after the primary arthroplasty (with 95% confidence intervals) was calculated and compared using Cox proportional hazard models adjusted for age. Results The BHR prosthesis had a statistically higher rate of all-cause revision at 17 years than the selected conventional THA prostheses (HR 2.77 [95% CI 1.78 to 4.32]; p < 0.001). The revision diagnoses differed between the groups, with the BHR demonstrating a higher revision rate for loosening after 2 years than the conventional THA protheses (HR 4.64 [95% CI 1.66 to 12.97]; p = 0.003), as well as a higher fracture rate during the entire period (HR 2.57 [95% CI 1.24 to 5.33]; p = 0.01). There was a lower revision rate for infection for the BHR compared with the THA group in the first 5 years, with no difference between the two groups after this time. All revisions of the BHR were major revisions (such as, removal or exchange of the femoral and/or acetabular components) and this occurred in 4.5% of the primary BHR procedures. Major revision was the most common type of revision for primary THA accounting for 1.7% of all primary THA procedures. Minor revisions (head, inset or both) were undertaken in a further 0.6% of primary THA procedures. Conclusions Given the increasing revision risk of the BHR compared with better-performing conventional THA prostheses in the target population, we recommend that patients be counseled about this risk. We suggest that a THA with proven low revision rates might be the better choice, particularly for patients who are concerned about implant durability. Well-controlled prospective studies that show appreciable clinically important differences in patient-reported outcomes and functional results favoring the BHR over conventional THA prostheses using modern bearings are needed to justify the use of the BHR in view of this revision risk. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
17. Is the Survivorship of Birmingham Hip Resurfacing Better Than Selected Conventional Hip Arthroplasties in Men Younger Than 65 Years of Age? A Study from the Australian Orthopaedic Association National Joint Replacement Registry.
- Author
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Stoney, James, Graves, Stephen E., de Steiger, Richard N., Rainbird, Sophia, Kelly, Thu-Lan, Hatton, Alesha, and Kelly BMath, Thu-Lan
- Subjects
- *
PROSTHETICS , *RESEARCH , *TOTAL hip replacement , *RESEARCH methodology , *MEDICAL cooperation , *EVALUATION research , *ARTIFICIAL joints , *COMPARATIVE studies , *REOPERATION , *COMPLICATIONS of prosthesis - Abstract
Background: The Birmingham Hip Resurfacing (BHR) prosthesis is the most commonly used metal-on-metal hip resurfacing arthroplasty device. The current manufacturer-recommended target demographic for the BHR is male patients, younger than 65 years requiring a femoral head size of ≥ 50 mm. Female patients, older patients, and individuals with smaller femoral-head diameter (≤ 50 mm) are known to have higher revision rates. Prior studies suggest that the survivorship of the BHR when used in the target demographic is comparable with that of primary conventional THA, but comparing survivorship of the most durable hip resurfacing arthroplasty device to the survivorship of all conventional THA prostheses is not ideal because the THA group comprises a large number of different types of prostheses that have considerable variation in prosthesis survival. A more informative comparison would be with the THA implants with the best survivorship, as this might help address the question of whether survivorship in the BHR target population can be improved by using a well-performing conventional THA.Questions/purposes: We compared the difference in cumulative percent revision, reasons for revision and types of revision for procedures reported to the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) using the BHR prosthesis (femoral-head size > 50 mm) and three conventional THA prostheses identified as having the lowest 10-year cumulative percent revision in the currently recommended BHR target population to ask: (1) Does the BHR have a lower cumulative revision rate than the group of three conventional THA prostheses? (2) Is there a difference in the revision diagnosis between the BHR and the three best conventional THA prostheses? (3) What is the difference in the components used for a revision of a BHR compared with the three best conventional THA prostheses?Methods: Data reported to the AOANJRR between September 1, 1999 and December 31, 2018 was used for this analysis. This study period includes almost the entire use of the BHR in Australia. The AOANJRR is a large national joint registry with almost 100% completeness, high accuracy, rigorous validation, and little to no loss to follow-up. The study population included males younger than 65 years that had received one hip replacement procedure for osteoarthritis. All patients with bilateral procedures, no matter the time interval between hips, were excluded. Only BHR prostheses with a femoral-head size ≥ 50 mm and conventional THA prostheses with femoral head sizes ≥ 32 mm and either ceramic-on-ceramic or metal, ceramic, ceramicized metal-on-crosslinked polyethylene (XLPE) bearings were included. These femoral head sizes and bearings were selected because they reflect modern conventional THA practice. There is no difference in the revision rate of these bearings in the AOANJRR. There were 4790 BHR procedures and 2696 conventional THA procedures in the study group. The mean (± SD) age for BHR procedures was 52 ± 7.8 years and 56 ± 7.1 years for conventional THA procedures. All comparative analyses were adjusted for age. Other demographics data including American Society Anesthesiologists (ASA) score and BMI were only included in AOANJRR data collection since 2012 and 2015, respectively, and have not been included in this analysis because of the low use of BHR in Australia since that time. The maximum follow-up was 18.7 years for both groups and mean follow-up of 11.9 years for the BHR and 9.3 years for the conventional THA group. Revision rates were determined using Kaplan-Meier estimates of survivorship to describe the time to the first revision, with censoring at the time of death or closure of the database at the time of analysis. A revision was defined as removal, replacement or addition of any component of a joint replacement. Revisions can be further classified as major revisions (removal of a component articulating with bone-usually the stem and/or the shell) or minor revisions (removal of other components-usually the head and/or the liner). The unadjusted cumulative percent revision after the primary arthroplasty (with 95% confidence intervals) was calculated and compared using Cox proportional hazard models adjusted for age.Results: The BHR prosthesis had a statistically higher rate of all-cause revision at 17 years than the selected conventional THA prostheses (HR 2.77 [95% CI 1.78 to 4.32]; p < 0.001). The revision diagnoses differed between the groups, with the BHR demonstrating a higher revision rate for loosening after 2 years than the conventional THA protheses (HR 4.64 [95% CI 1.66 to 12.97]; p = 0.003), as well as a higher fracture rate during the entire period (HR 2.57 [95% CI 1.24 to 5.33]; p = 0.01). There was a lower revision rate for infection for the BHR compared with the THA group in the first 5 years, with no difference between the two groups after this time. All revisions of the BHR were major revisions (such as, removal or exchange of the femoral and/or acetabular components) and this occurred in 4.5% of the primary BHR procedures. Major revision was the most common type of revision for primary THA accounting for 1.7% of all primary THA procedures. Minor revisions (head, inset or both) were undertaken in a further 0.6% of primary THA procedures.Conclusions: Given the increasing revision risk of the BHR compared with better-performing conventional THA prostheses in the target population, we recommend that patients be counseled about this risk. We suggest that a THA with proven low revision rates might be the better choice, particularly for patients who are concerned about implant durability. Well-controlled prospective studies that show appreciable clinically important differences in patient-reported outcomes and functional results favoring the BHR over conventional THA prostheses using modern bearings are needed to justify the use of the BHR in view of this revision risk.Level Of Evidence: Level III, therapeutic study. [ABSTRACT FROM AUTHOR]- Published
- 2020
- Full Text
- View/download PDF
18. Feasibility of establishing an Australian ACL registry: a pilot study by the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR).
- Author
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Lekkas, Christina, Clarnette, Richard, Graves, Stephen, Rainbird, Sophia, Parker, David, Lorimer, Michelle, Paterson, Roger, Roe, Justin, Morris, Hayden, Feller, Julian, Annear, Peter, Forster, Ben, Hayes, David, Graves, Stephen E, and Feller, Julian A
- Subjects
- *
ANTERIOR cruciate ligament injuries , *ANTERIOR cruciate ligament surgery , *KNEE injuries , *SPORTS injuries treatment , *ORTHOPEDICS , *PATIENTS , *INJURY risk factors , *SOCIETIES , *PILOT projects , *ACQUISITION of data - Abstract
Purpose: Rupture of the anterior cruciate ligament (ACL) is a common and debilitating injury that impacts significantly on knee function and risks the development of degenerative arthritis. The outcome of ACL surgery is not monitored in Australia. The optimal treatment is unknown. Consequently, the identification of best practice in treating ACL is crucial to the development of improved outcomes. The Australian Knee Society (AKS) asked the Australian Orthopaedic Association (AOA) to consider establishing a national ACL registry. As a first step, a pilot study was undertaken by the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) to test the hypothesis that collecting the required information in the Australian setting was possible.Methods: Surgeons completed an operative form which provided comprehensive information on the surgery undertaken. Patients provided pre- and post-operative questionnaires including the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Marx Activity Scale (MA Scale). The number of ACL procedures undertaken at each hospital during the recruitment period was compared against State Government Health Department separation data.Results: A total of 802 patients were recruited from October 2011 to January 2013. The overall capture rate for surgeon-derived data was 99%, and the capture rate for the pre-operative patient questionnaire was 97.9%. At 6 months, patient-reported outcomes were obtained from 55% of patients, and 58.5% of patients at 12 months. When checked against State Government Health Department separation data, 31.3% of procedures undertaken at each study hospital were captured in the study.Conclusion: It is possible to collect surgeon-derived and pre-operative patient-reported data, following ACL reconstruction in Australia. The need to gain patient consent was a limiting factor to participation. When patients did consent to participate in the study, we were able to capture nearly 100% of surgical procedures. Patient consent would not be an issue in for a national registry where inclusion is automatic unless the patient wishes to opt out. The collection of post-operative patient-reported outcome measures (PROMs) is more problematic, due to an insufficient proportion of individuals providing patient-reported outcomes. Alternative outcome measures are required for an ACL registry in Australia to be successfully implemented.Level Of Evidence: Diagnostic, Level III. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
19. Reply to the Letter to the Editor: Is the Survivorship of Birmingham Hip Resurfacing Better Than Selected Conventional Hip Arthroplasties in Men Younger Than 65 Years of Age? A Study from the Australian Orthopaedic Association National Joint Replacement Registry.
- Author
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Stoney, James, Graves, Stephen E., de Steiger, Richard N., Rainbird, Sophia, Thu-Lan Kelly, Hatton, Alesha, Kelly BMath, Thu-Lan, Steiger, Richard N, and Kelly, Thu-Lan
- Subjects
- *
YOUNG men , *AUSTRALIANS , *AGE - Published
- 2021
- Full Text
- View/download PDF
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