The utility of cemented femoral stems in modern THA: a 10-year comparative analysis of the Charnley and Exeter stems.

BACKGROUND: Total hip replacement (THR) is one of the most common surgical procedures performed worldwide. The controversy surrounding the relative merits of a cemented composite beam or cemented taper-slip stem in total hip replacement continues. Our aims primarily were to assess the 10-year outcomes of cemented stems using Charnley and Exeter prostheses with regional registry data and secondarily to assess the main predictors of revision. METHODS: We prospectively collected registry data for procedures performed between January 2005 and June 2008. Only cemented Charnley and Exeter stems were included. Patients were prospectively reviewed at 6 months, 2, 5 and 10 years. The primary outcome measure was a 10-year all-cause revision. Secondary outcomes included 're-revision', 'mortality' and functional 'Western Ontario and McMaster Universities Osteoarthritis Index' (WOMAC) scores. RESULTS: We recorded a total of 1351 cases in the cohort, 395 Exeter and 956 Charnley stems. The overall all-cause revision rate at 10 years was 1.6%. The revision rate for Charnley stem was 1.4% and 2.3% revision rate for all Exeter stems with no significant difference noted between the two cohorts (p = 0.24). The overall time to revision was 38.3 months. WOMAC scores at 10 years were found to be insignificantly higher for Charnley stems (mean 23.8, σ = 20.11) compared to Exeter stems (mean 19.78, σ = 20.72) (p = 0.1). CONCLUSION: There is no significant difference between cemented Charnley and Exeter stems; they both perform well above the international average. The decline in the use of cemented THA is not fully supported by this regional registry data.

Thoracolumbar Burst Fractures: A Systematic Review and Meta-Analysis Comparing Posterior-Only Instrumentation Versus Combined Anterior-Posterior Instrumentation.

STUDY DESIGN: Meta-analysis. OBJECTIVE: To compare the clinical, functional, and radiological outcomes of posterior-only versus combined anterior-posterior instrumentation in order to determine the optimal surgical intervention for thoracolumbar burst fractures. SUMMARY OF BACKGROUND DATA: Unstable thoracolumbar burst fractures warrant surgical intervention to prevent neurological deterioration and progressive kyphosis, which can lead to significant pain and functional morbidity. The available literature remains largely inconclusive in determining the optimal instrumentation strategy. METHODS: Electronic searches of MEDLINE (1948-May 2020), EMBASE (1947-May 2020), The Cochrane Library (1991-May 2020), and other databases were conducted. Cochrane Collaboration guidelines were used for data extraction and quality assessment. Outcomes of interest were divided into three categories: radiological (degree of postoperative kyphosis correction; loss of kyphosis correction at final follow-up), functional (visual analogue scale [VAS] pain score; Oswestry Disability Index [ODI] score), and clinical (intraoperative blood loss; length of stay [LOS]; operative time; the number and type of postoperative complications). RESULTS: Four randomized control trials (RCTs) were retrieved, including 145 randomized participants. Seventy-three patients underwent posterior-only instrumentation and 72 underwent combined instrumentation. No significant difference was found in the degree of postoperative kyphosis correction (P = 0.39), VAS (centimeters) at final follow-up (P = 0.67), ODI at final follow-up (P = 0.89) or the number of postoperative complications between the two approaches (P = 0.49). Posterior-only instrumentation was associated with lower blood loss (P < 0.001), operative time (P < 0.001), and LOS (P = 0.01). Combined instrumentation had a lower degree of kyphosis loss at final follow-up (P = 0.001). There was heterogeneity in the duration of follow-up between the included studies (mean follow-up range 24-121 months). CONCLUSION: The available literature remains largely inconclusive. In order to reliably inform practice in this area, there is a need for large, high-quality, multicenter RCTs with standardized reporting of outcomes, with a particular focus on outcomes relating to patient function and severe complications causing long-term morbidity.Level of Evidence: 2.

Psychological intervention for partners post-stroke: A case report.

BACKGROUND: Following a brain injury, caregiving spouses/partners differ in their perceptions of relationship continuity/discontinuity (i.e. whether the relationship is experienced as similar or different to the pre-injury relationship). Perceptions of continuity are associated with better psychological wellbeing and a better relationship. OBJECTIVE: To conduct a pilot test of an intervention aimed at exploring the possibility of supporting caregiving partners to experience greater continuity within their relationship post-stroke. METHODS: A post-stroke couple was provided with integrated behavioural couples therapy for three months, which aimed to increase relationship continuity alongside addressing individual goals identified by the couple. Before and after measures were taken using a battery of six questionnaires evaluating changes in perceptions of continuity, relationship quality, and stress. RESULTS: Quantitative and qualitative data showed post-therapy improvement in all the measures. CONCLUSIONS: The study suggested that perceptions of relationship continuity can be improved by therapy, and that such an improvement might have a beneficial impact in terms of relationship quality and psychological wellbeing. The intervention is currently being further developed and evaluated.

Revision total hip arthroplasty: An analysis of the quality and readability of information on the internet.

The demand for revision total hip arthroplasty (THA) is increasing. Information quality on the internet has been extensively analysed in relation to primary THA but no such analysis has ever been performed for revision THA. Our aim was to assess the quality and readability of this information. Three major internet search engines were searched for information on revision THA. All websites were assessed for quality of information using the DISCERN score, the Journal of the American Medical Association benchmark criteria and a novel scoring system specific to revision THA [Vancouver Revision Arthroplasty Information (VRAI) score]. Website readability was assessed, as was presence of the Health On the Net Foundation (HON) seal. The majority of websites (52%) were academic with a post-graduate reading level. Only 6.5% of websites had the HON seal. Twenty-eight percent of websites had a 'good' DISCERN score and only 28% had a 'good' score with the novel VRAI scoring system. Health information websites had significantly higher rates of 'good' VRAI scores (P = 0.008). Websites with the HON seal had significantly higher DISCERN scores (P = 0.01). All governmental websites were at a reading level suitable for patient review. Information on the internet relating to revision THA is of low quality, much lower than the quality of information on primary THA. We recommend governmental websites for their readability and health information websites for their quality of information specific to revision THA. Websites with the HON seal provide higher quality information and should be recommended to patients as reading material regarding revision THA.

Increased HIV diagnoses in West Virginia counties highly vulnerable to rapid HIV dissemination through injection drug use: a cautionary tale.

PURPOSE: To investigate HIV transmission potential from a cluster of HIV infections among men who have sex with men to persons who inject drugs in 15 West Virginia counties. These counties were previously identified as highly vulnerable to rapid HIV dissemination through injection drug use (IDU) associated with high levels of opioid misuse. METHODS: We interviewed persons with 2017 HIV diagnoses about past-year risk behaviors and elicited sexual, IDU, and social contacts. We tested contacts for HIV and assessed risk behaviors. To determine HIV transmission potential from persons with 2017 diagnoses to persons who inject drugs, we assessed viral suppression status, HIV status of contacts, and IDU risk behaviors of persons living with HIV and contacts. RESULTS: We interviewed 78 persons: 39 with 2017 diagnoses and 39 contacts. Overall, 13/78 (17%) injected drugs in the past year. Of 19 persons with 2017 diagnoses and detectable virus, 9 (47%) had more than or equal to 1 sexual or IDU contacts of negative or unknown HIV status. During the past year, 2/9 had injected drugs and shared equipment, and 1/9 had more than or equal to 1 partner who did so. CONCLUSIONS: We identified IDU risk behavior among persons with 2017 diagnoses and their contacts. West Virginia HIV prevention programs should continue to give high priority to IDU harm reduction.

High Preponderance of BRAF V600E Mutation in Papillary Thyroid Carcinoma Among Filipinos: A Clinicopathologic Study.

PURPOSE: BRAF mutation in papillary thyroid carcinoma (PTC) is associated with an aggressive phenotype, with varying incidence. We evaluated the prevalence of BRAF mutations in PTC among Filipino patients and their correlation with clinicopathologic characteristics. PATIENTS AND METHODS: Clinicopathologic data were retrieved from 64 sequential patients who underwent thyroidectomy from June 2016 to December 2016. BRAF mutation testing was performed using Sanger sequencing. RESULTS: Eighteen (28%) of 64 patients were diagnosed with PTC; 12 (70.59%) of 17 harbored a BRAF V600E mutation (no amplification in one patient). Demographics of patients with PTC were as follows: 13 women and five men, with median age of 46 years (range, 25 to 74 years). Fourteen patients had conventional subtype PTC; two, follicular variant; one, oncocytic variant; and one, tall-cell features. Tumor size ranged from 0.8 to 7.0 cm (median, 2.4 cm); extrathyroidal extension was present in seven (38.9%) of 18 patients, multifocality in six (33.33%) of eight, and lymph node involvement in eight (44.4%) of 18. Significant association between presence of a BRAF mutation and presence of extrathyroidal extension or lymph node involvement was not determined due to the limited sample size. CONCLUSION: The high preponderance of BRAF mutation (70.59%) suggests some correlation with the previously reported lower 5-year survival among Filipinos. This warrants further investigation in a larger-cohort prospective study.

Dural ectasia associated with Mounier-Kuhn syndrome: a novel association in the context of spinal stenosis.

We present the case of a patient undergoing lumbar spine decompression for stenosis with a history of Mounier-Kuhn syndrome. The patient presented with axial lumbar spine pain over 6 months with progressive radicular pain to the left L3 dermatome. MRI confirmed spinal stenosis at L3/4 level with associated dural ectasia. The patient had an uneventful spinal decompression with resolution of radicular symptoms and axial spine pain. Dural ectasia poses a significant risk when operating on the lumbosacral spine. Larger cerebrospinal fluid volumes and a capacious dural canal can result in anaesthetic and orthopaedic complications such as inadequate spinal anaesthesia, complicated epidural analgesia, intraoperative dural tears and difficult pedicle screw insertion due to narrow pedicles. This is the first case in the literature detailing the association between dural ectasia and Mounier-Kuhn syndrome. We recommend adequate spinal imaging in patients with Mounier-Kuhn syndrome to exclude dural ectasia prior to undergoing lumbosacral spinal procedures.

Irreducible posterolateral elbow dislocation: a rare injury.

Posterolateral dislocation of the elbow is an injury commonly treated in the emergency department by closed reduction. Very rarely it can be irreducible and require open reduction. Only four cases of irreducible posterolateral elbow dislocation have been described in the literature over the past 50 years. We report the case of a 20-year-old man who sustained such an injury. Open reduction was performed and revealed the radial head protruding or 'buttonholing' through the lateral collateral ligament complex. This case highlights that continued closed reduction of the elbow should not be attempted, as a mechanical block to reduction can occur making reduction impossible.

Higher haemoglobin levels and dedicated trauma admission are associated with survival after severe traumatic brain injury.

BACKGROUND: Prevention of secondary brain injury is a key component of acute management of patients with severe traumatic brain injury (TBI). Haemoglobin concentration may have an impact on optimization of cerebral oxygenation. Patients with TBI may best be served by an organized trauma service. The objective is to determine if haemoglobin concentration or dedicated trauma admission has an impact on outcomes after severe TBI. METHODS: This study retrospectively analysed consecutive patients with severe TBI admitted to a level-I trauma centre over 3 years. Patients <16 years-old and with length of stay (LOS) <24 hours were excluded. Data were collected on demographics; injury severity; LOS; admission service; survival to discharge; and haemoglobin levels from hospital days 1-7. Data were also collected on number of transfusions of packed red blood cells. The sample was stratified based on admission service and survival to discharge. RESULTS: Of 147 patients (age = 54.1 ± 3.7 years), overall mortality rate was 15.4% (n = 23). Overall, non-survivors had lower daily and 7-day mean haemoglobin levels (10.7 ± 0.9 vs. 12.9 ± 0.4 g dL(-1), p < 0.001). Non-surgical admissions had lower haemoglobin levels and a higher mortality rate (28.9% vs. 12.2%, p < 0.001) compared to dedicated trauma admissions. CONCLUSIONS: Among patients with severe TBI, higher haemoglobin levels and maintenance as a dedicated trauma admission are associated with higher survival to discharge.

Facilitating students' reflective practice in a medical course: literature review.

INTRODUCTION: Reflection and reflective practice is of increasing importance in medical education curricula. The aim of this review is to summarise the literature published around facilitating reflection in a medical course, and to answer the question : W0 hat is the current evidence regarding learning and development moments across the medical curriculum in developing students' reflective practice? METHODS: A review of the literature was undertaken using defined databases and the search terms 'medical students', 'medical education', 'reflection', 'reflectFNx01' and 'medicine'. The search was limited to peer-reviewed published material in English and between the years 2001 and 2011, and included research, reviews and opinion pieces. RESULTS: Thirty-six relevant articles were found, identifying enhancing factors and barriers to effectively teaching reflective practice within medical curricula, relating to: The breadth of the meaning of reflection; facilitating reflection by medical educators; using written or web-based portfolios to facilitate reflection; and assessing the reflective work of students. DISCUSSION: A variety of reflective purposes was found in this literature review. Evidence indicates that, if students are unclear as to the purpose of reflection and do not see educators modelling reflective behaviours, they are likely to undervalue this important skill regardless of the associated learning and development opportunities embedded in the curriculum.

Do stigma, blame and stereotyping contribute to unsafe sexual behaviour? A test of claims about the spread of HIV/AIDS arising from social representation theory and the AIDS risk reduction model.

In the context of social representation theory and the AIDS risk reduction model, it has been claimed that stigmatizing, blaming and stereotyping attitudes make people feel less at risk of contracting HIV/AIDS, and that this, in turn, results in them taking fewer precautions in their sexual behaviour. Previous research has failed to provide convincing evidence to support these claims. The present study provided a test of the claims that addressed some of the methodological issues identified in the earlier research. A sample of 460 young people from Ghana, ranging in age from 15 to 28 years (mean=18), completed a questionnaire that measured the relevant constructs. The results supported the claims in relation to stigmatizing and intended sexual risk behaviour, but not stigmatizing and actual sexual risk behaviour. Although the latter two were correlated, this was not mediated by reduced perceptions of vulnerability. Claims in relation to blaming and stereotyping were not supported. Contrary to expectation, specific blaming and stereotyping attitudes that constructed HIV/AIDS as a sexual disease were associated with safer intended sexual behaviour, and this relationship was mediated by feeling at greater risk.