Medial meniscal and bony slopes are higher in knees with failed ACL reconstruction than in patients with successful ACL reconstruction.

BACKGROUND: We aimed to compare tibial soft tissue and bony slopes in patients with failed and non-failed ACL reconstructions (ACLR). We hypothesized that patients with failed ACLR have increased slopes compared to non-failed ACLR, and unexplained failures have higher slopes than failures with clear technical errors and failed synthetic ligaments. METHODS: Between 2015 and 2022, 130 patients with failed ACLR were retrospectively identified; 79 knees with adequate MRI scans were analyzed. These were compared to 57 non-failed ACLRs. MRI measurements included lateral and medial tibial bony slope (LBS, MBS) and lateral and medial meniscal slope (LMS, MMS). Subgroup analysis assessed for failures with technical errors and failed synthetic ligaments. RESULTS: In all patients, the LMS and MMS reduced the bony slope towards the horizontal without reaching statistical significance. Failed ACLR had significantly higher MBS (7.1° ± 2.9 vs. 4.6° ± 2.5, p < 0.001) and MMS (5.6° ± 3.5 vs. 3.4° ± 2.8, p < 0.001). The area under the curve for MBS was 0.721 (CI: 0.628-0.813). The Youden optimal threshold value of MBS ≥ 5.1° (sensitivity 80 %, specificity 56.1 %) yielded an odd's ratio for failure of 5.1 (CI:2.3-11.6; p < 0.001). Revisions with technical errors had slopes that were not significantly different to non-failed ACLR. Revisions with synthetic grafts had MBS (7.3° ± 3.2 vs. 4.6° ± 2.5; p = 0.007) and MMS (6° ± 3.8 vs. 3.4° ± 2.8; p = 0.021) that were significantly higher to non-failed ACLR. CONCLUSION: Medial bony and meniscal slopes are higher in patients with unexplained failed ACLRs and revisions with synthetic grafts, but ACLR with technical errors failed with slopes similar to non-failed ACLRs. Increased medial slope values are a risk factor for surgical failure. LEVEL OF EVIDENCE: III.

The Distribution of Regulation in Aged and Dementia Care: A Continuum Approach.

The regulation of care services has become the principal means by which the state influences provision. In this article we examine the regulation of dementia care within organizations to show how some care activities attract more regulation than others. While often perceived to be overwhelming, regulation is in fact unevenly distributed at the system, organization and, in particular, the care practice levels. In practice, some areas of care are heavily regulated, while others are less so. Drawing on research interviews with staff (N = 60) at three levels of care provider organizations-senior managers, facility managers, and direct care workers-a continuum of regulation, with regulations collecting around some care activities and not others, is developed. This is used to plot how different care activities are affected by regulation. Understanding how regulations collect around some activities and not others shows where flexibility and innovation in care are possible. This has implications for the discretion care workers can exercise in daily care, effective organizational strategies for managing care and regulation, and regulatory policy. Current debates around regulation should shift from notions of good/bad and more/less regulation to an analysis of how regulation creates areas that are closely controlled and those that allow practice innovation.

How provider organisations interpret regulation in the context of residential dementia aged care.

OBJECTIVE: To explore how Australian residential dementia aged care providers respond to regulation via organisational culture, level, processes and interpretation. METHODS: Observation took place in three provider organisations. Qualitative, semi-structured in-depth interviews were conducted with aged care staff (n = 60) at three different levels of each organisation: senior management from three head offices (n = 17), facility management (n = 13) and personal care workers (n = 30) from eight residential care facilities. RESULTS: Orientations towards regulation included the following: "above and beyond;" "pushing back;" and "engineering out." Regulation was interpreted differently depending on the level of authority within an organisation where boundaries were managed according to strategic, operational and interactional priorities. DISCUSSION: Examining regulation within an organisational context and at different staff levels suggests ways to balance dementia care with regulatory control. Both generate stress, mitigated by culture and interdependent role differentiation.

Dementia as a source of social disadvantage and exclusion.

OBJECTIVE: To explore perceptions of the impacts of dementia on people living with the condition and those close to them and examine the relationship between dementia, disadvantage and social exclusion. METHODS: Semi-structured in-depth interviews were conducted with 111 participants: people with dementia (n = 19), carers (n = 28), health-care professionals (n = 21), social workers (n = 23) and service professionals (n = 20). NVivo 11 was used to code descriptions and identify impact areas. RESULTS: Participants described social, psychological, carer, material, service-based and disparity impacts associated with the experience of dementia. Some of these impacts correspond to social exclusion associated with age, but some are distinctive to dementia. DISCUSSION: It is argued that dementia generates its own forms of social disadvantage and exclusion. This is in addition to being subject to structural risk factors. The implications of the active effects of dementia as a social phenomenon should give rise to new policy and practice priorities.

What you say and what I want: Priorities for public health campaigning and initiatives in relation to dementia.

OBJECTIVE: To examine the overlap between priorities expressed by representatives from national and local campaigning organisations and the views of key voices in relation to dementia. METHODS: Semi-structured, in-depth telephone interviews were conducted with 19 representatives from campaigning organisations, including nine countries and six local community initiatives in Australia. Responses were categorised into nine priorities. Views were compared to the voices of people with dementia (n = 19), carers (n = 28), and health-care (n = 21), social work (n = 23) and service professionals (n = 20). RESULTS: Local groups prioritised user-led decision-making and community normalising agendas. National groups were influenced by service frameworks and increasing public awareness. Professional and carer groups focused on increasing understanding and communication skills while people with dementia valued being a normal part of society. CONCLUSION: Future campaigning should use both national and local approaches to changing social relations, through interpersonal connections, advocacy and social mobilisation, to promote a normalising approach to attitude change.

Minimizing Propionibacterium acnes contamination in shoulder arthroplasty: use of a wound protector.

BACKGROUND: Propionibacterium acnes may be transmitted from the subdermal tissues to the deeper tissues during shoulder arthroplasty surgery, resulting in deep infection. The aim of this prospective, clinical study was to determine whether the use of a wound protector drape can lower the incidence of P. acnes in the wound during shoulder arthroplasty surgery. METHODS: For a consecutive series of 47 patients undergoing shoulder arthroplasty, a wound protector drape was used during surgery, to isolate the subdermal layer from the surgeons' hands, retractors and other instruments. Microbiological swabs were taken both from the subdermal layer and the exposed drape to determine the incidence of P. acnes at both sites. RESULTS: The overall incidence of P. acnes in the subdermal layer was 23%. A fivefold decrease in the incidence of P. acnes in the exposed superficial layer was demonstrated by use of the wound protector drape. CONCLUSION: Use of a wound protector drape to isolate the superficial tissue layer from the surgeons' gloves, instruments and retractors decreases the incidence of P. acnes in the surgical field. This may result in a decreased rate of transmission to the deeper tissues, and a decreased rate of P. acnes deep infection.

Differences in priority by age group and perspective: implications for public health education and campaigning in relation to dementia.

ABSTRACTObjectives:A shift toward public health responses to dementia, raises questions about the most appropriate approaches to specific population groups. We examined perspective and age as elements in effective campaigning. Implications from the standpoint of the recipient are drawn for public health education and practice. DESIGN: In-depth semi-structured face-to-face and telephone interview with self-selected participants recruited via adverts, contact with provider organizations and cards placed in retail and service settings. Questions focused on attitudes to dementia and expectations of public campaigning and education. SETTING: Community-dwelling adults were interviewed across five Australian states. PARTICIPANTS: A total of 111 people from 5 target groups: people with dementia (n = 19), carers (n = 28), care work and service professionals from healthcare (n = 21), social work (n = 23) and commercial service professions (n = 20) involving people in younger adulthood (n = 13), early midlife (n = 23), later midlife (n = 54), and older age (n = 21). MEASUREMENTS: All interviews were transcribed and analyzed thematically by three researchers, reaching consensus before coding and further analysis in NVivo. Narrative analysis of transcripts included 330 topics relating to 6 main areas of focus. RESULTS: Attitudes and views on effective future campaigning reflected a desire for greater social inclusion, but did not focus on prevention and health services. Professionals focused on increasing interpersonal skills, people with dementia on normalization, and carers on awareness-raising. CONCLUSIONS: Public health campaigning and education in relation to dementia, could benefit from closer consideration of perspective and age of recipient in intervention design. Interpersonal skills and social inclusion were identified as key issues.

Correction to: Traumatic inferior shoulder dislocation: a review of management and outcome.

The original version of this article unfortunately contained mistakes. The presentation of the author names was incorrect.

Traumatic inferior shoulder dislocation: a review of management and outcome.

INTRODUCTION: Traumatic inferior shoulder dislocation (ISD) is rare, estimated to occur in 0.5% of all shoulder dislocations. We describe the demographics, natural history and outcome of this injury. HYPOTHESIS/AIM: The aim of the study is to provide a summary of the demographics, clinical presentation, management and outcome of patients who suffer ISD METHODS: We conducted a systematic review of the English language literature on ISD using PubMed, Medline, CINHAL, Cochrane Database and Evidence-Based Medicine Reviews. Articles were examined independently by two of the authors and data were extracted using a standard form. Descriptive statistics were performed. RESULTS: 199 patients were identified, from 101 articles. Mean age was 44 years (range 13-94 years). All cases were caused by trauma, with falls accounting for 44% of all cases. There were three reported cases (2%) of open dislocations and 29 cases (15%) of bilateral ISD. Proximal humerus and scapular fractures were reported in 39 and 8% of patients, respectively. Neurological injury after dislocation was noted in 58 patients (29%). Vascular injury was noted in 20 patients (10%), which included axillary arterial injury in 19 patients and an upper limb deep vein thrombosis in one patient. Follow-up data were available for 107 patients (54%), with an average duration of 2.7 years (1 week-32 years). Avascular necrosis (AVN) was noted between 8 weeks and 2 years after initial injury in three patients (1.5%). CONCLUSION: Clinical and radiographic assessment of ISD is key to diagnosis and successful reduction. Patients can be treated with shoulder immobilisation for 2-3 weeks. In the setting of ongoing pain or instability, further imaging should be performed. The outcome of ISD is generally favourable.

Work, Aging, and Risks to Family Life: The Case of Australia.

The relationship between work and family is considered with an emphasis on policy solutions. Australian policy is a case example in the context of international trends. A mismatch between policy initiatives and familial and personal priorities constitutes a new social risk associated with demographic and sociocultural development. Contemporary trends, both nationally and internationally, evidence solutions to the "problem of demographic aging" by adopting a form of economic instrumentalism. This restricts legitimate age identities to those associated with work and work-related activity. When applied to family life, such a focus runs the risk of reducing policy interest in intergenerational engagement to unpaid care roles, while personal development and age-related life priorities are ignored. The need for cultural adaptation to population aging is becoming accepted in policy debate and is considered here as an effective response to the personal, social, and economic risks of population aging and associated impacts on family life.

Osteolysis in patients with a metal-on-metal hip arthroplasty.

BACKGROUND: Despite design and manufacturing improvements in contemporary metal-on-metal hip replacements, the problem of wear particles persists. The local and systemic biological consequences of this ionic debris have been the subject of much investigation and it has become clear that cell-mediated delayed-type hypersensitivity reactions are a discrete mode of osteolysis in susceptible patients. METHODS: We have carried out a consecutive series of 125 primary hip replacements using the Metasul (Zimmer, Warsaw, IN, USA) bearing couple. The radiographs, periprosthetic tissue and retrieved implants of patients undergoing revision for osteolysis were analysed. RESULTS: Three patients underwent revision procedures during a follow-up period of 3-9 years. Histological analysis showed a perivascular lymphocytic infiltrate of the pseudocapsule. Infection was excluded in each patient, there was no implant loosening and no evidence of impingement between trunion and acetabular component. CONCLUSION: We report a prevalence of 2.6% of patients displaying femoral osteolysis associated with characteristic clinical and histological findings.

Safety of autologous drainage blood reinfusion following total knee arthroplasty prepared with hydrogen peroxide.

In a clinical in vivo study, wound blood collected from an autologous reinfusion drain of patients undergoing elective total knee arthroplasty was examined to investigate if hydrogen peroxide bone surface preparation had an adverse effect on blood destined to be reinfused. The post-operative drain blood of thirty-eight patients was collected after pre-implantation bone preparation being performed either with or without the use of hydrogen peroxide. Filtered drain blood samples were analyzed and mean results for treatment / control groups respectfully were: haemoglobin (g/L) 98.6/100.9, p=0.7221; haemoglobin change from baseline (g/L) -39.1/-32.9, p=0.2117; MCV (fL) 94.6/93.1, p=0.2897; MCV change from baseline (fL) 2.0/2.5, p=0.6417; potassium (mmol/L) 4.5/4.6, p=0.8212; free haemoglobin (g/L) 1.2/1.3, p=0.4387; methaemoglobin (%) 0.2/0.2, p=0.8112; presence of echinocytes (%) 14/18, p=1.0000. These were all within safe limits for reinfusion. Under the study conditions, application of hydrogen peroxide followed by thorough lavage of the knee joint did not appear to result in any untoward degradation of the extravasated blood that might preclude its use for postoperative autologous drainage blood reinfusion.