Methods: We conducted a retrospective analysis of 288 patients (246 for final analysis) who underwent MSTS between 2005–2015. Data collected were demographics and peri/postoperative clinical and radiological features. Early and late radiological AsCF were defined as presentation before and after 3 months, respectively. We analyzed patients with AsCF for risk factors and survival duration by performing competing risk regression analyses where AsCF was the event of interest, with SF and death as competing events. Results: We observed AsCF in 41/246 patients (16.7%). The mean time to onset of AsCF after MSTS was 2 months (range, 1–9 months). Median survival of patients with AsCF was 20 and 41 months for early and late failures, respectively. Early AsCF accounted for 80.5% of cases, while late AsCF accounted for 19.5%. The commonest radiologically detectable AsCF mechanism was angular deformity (increase in kyphus) in 29 patients. Increasing age (p<0.02) and primary breast (13/41, 31.7%) (p<0.01) tumors were associated with higher AsCF rates. There was a non-significant trend towards AsCF in patients with a spinal instability neoplastic score ≥7, instrumentation across junctional regions, and construct lengths of 6–9 levels. None of the patients with AsCF underwent revision surgery. Conclusions AsCF after MSTS is a distinct entity. Most patients with early AsCF did not require intervention. Patients who survived and maintained ambulation for longer periods had late failure. Increasing age and tumors with a better prognosis have a higher likelihood of developing AsCF. AsCF is not necessarily an indication for aggressive/urgent intervention.

INTRODUCTIONNasopharnygeal carcinoma (NPC) is characterised by early metastases with the skeleton being the most common site of metastases. The ability to prognosticate survival is crucial in the decision whether or not to offer surgery to these patients and the choice of surgery offered. We aimed to evaluate the scoring systems namely: Bauer, Katagiri and Scandinavian Sarcoma Group (SSG) in NPC patients with skeletal metastases.

MATERIALS AND METHODSA total of 92 patients with skeletal metastases from NPC were studied. We retrospectively analysed the actual survival of these patients and compared with predicted survival according to the 3 scoring systems. The predicted survival according to each system was calculated and labelled as A scores. These were then re-scored by assigning NPC as a better prognostic tumour and labelled as B scores. The predicted survival of scores A and B were compared to actual survival. Univariate and multivariate Cox regression analyses were performed. The predictive values of each scoring were calculated.

RESULTSThe median overall survival for the whole cohort was 13 months (range: 1 to 120 months). In multivariate analysis, general condition and visceral metastases showed significant effect on survival. There were statistically significant differences (P <0.001) between the subgroups of the SSG B as well as Katagiri B scoring systems where NPC was classified as a better prognostic tumour. SSG B provided the highest predictive value (0.67) as compared to the other 2 scoring systems.

CONCLUSIONThe SSG and Katagiri score could be used to prognosticate NPC with a statistically significant association with actual survival.

Bone Neoplasms ; mortality ; secondary ; Carcinoma ; mortality ; secondary ; Humans ; Multivariate Analysis ; Nasopharyngeal Neoplasms ; mortality ; pathology ; Prognosis ; Proportional Hazards Models ; Retrospective Studies ; Survival Rate

INTRODUCTIONNot much is known regarding how primary care physicians (PCPs) in Singapore keep themselves healthy and mitigate ill health. This study aims to determine the health-seeking behaviour of local PCPs and to identify the predictors of local PCPs attaining the recommended level of exercise.

METHODSThis study was a cross-sectional questionnaire survey, which included questions on the demographic characteristics, practice profiles and health-seeking behaviour of PCPs. The sampling frame was the 1,400 listed members of the College of Family Physicians Singapore. The anonymised survey was executed in two phases: a postal survey, followed by a web-based survey on the College of Family Physicians Singapore website. The two data sets were collated; the categorical variables, summarised; and the differences between subgroups (based on exercise engagement), compared using Fisher's exact test. The effect of each risk factor on exercise duration was quantified using odds ratio (OR) estimate and 95% confidence interval (CI). Multivariate logistic regression analysis was performed to identify significant predictors of exercise engagement.

RESULTSA total of 631 PCPs participated in the survey--26% were ≤ 34 years old, 58% were male, 21% were single, 34% were singleton practitioners, and 56% were private practitioners. The percentage of PCPs who exercised ≥ 2.5 hours weekly was 29%, while 28% exercised < 0.5 hours weekly. Of the PCPs surveyed, 1% currently smoke, 0.8% drink more than 14 units of alcohol weekly, 60% undertook health screening, 65% had blood investigations done, and 64% had taken preventive measures such as getting influenza vaccination.

CONCLUSIONWhile local PCPs generally did not have undesirable habits such as smoking and alcohol abuse, they could further increase their exercise intensity and undertake more preventive measures such as getting vaccinated against various diseases.

Adult ; Aged ; Cross-Sectional Studies ; Exercise ; Female ; Health Behavior ; Health Surveys ; Humans ; Life Style ; Male ; Middle Aged ; Multivariate Analysis ; Odds Ratio ; Physicians, Primary Care ; Risk Factors ; Singapore ; Surveys and Questionnaires

Introduction: Many health professionals, including those in the dental profession, suffer from work- related musculoskeletal disorders (WMSD). Literature reviews have reported on the high prevalence as well as the significant burden in this specific profession. However, we could not find data on the preva- lence of the problem and its work-related health risk profiles in Brunei Darussalam. This cross-sectional study aims to determine the prevalence of musculoskeletal disorders (MSD) in the dental profession of the public sector, and identify their associated MSD risk profiles. Materials and Methods: A survey was carried out using a validated structured self-administered questionnaire among 155 dental person- nel (57% response rate) employed by the Ministry of Health in Brunei Darussalam. Questions included data on demographics, general ergonomic risk, and self-reported musculoskeletal complaints. Results: The dental workforce was predominantly female (69.7%), with mean age of 39 (SD 9.87) years and mean employment duration of 13.9 (SD 8.71) years. The most commonly reported body regions for musculoskeletal problems experienced in the past year were shoulders (61.7%), lower back (59.3%), upper back (55.7%), wrists/hands (53.4%), and neck (53.3%). Significant work-related associated factors for MSD were glare for neck (p<0.05), elbows (p<0.001), wrists/hands (p<0.001) and upper back (p<0.05) regions; time spent per patient for shoulders (p<0.05), and wrists/hands (p<0.05) re- gions; dental group for shoulders (p<0.05), upper back (p<0.05), and lower back (p<0.05) regions; and gender for neck (p<0.05), elbows (p<0.001), wrists/hands (p<0.001), and upper back (p<0.05) regions. Conclusion The prevalence of self-reported MSD among dental personnel is high. Several work-related factors have been identified to be associated with musculoskeletal symptoms in varying body regions. Preventive measures need to be implemented to reduce the significant burden of MSD in the dental profession.