2,634 research outputs found
Koos Kombuis: Ikonoklas na ikoon
No full textDie Afrikaanse skrywer en musikant Koos Kombuis word vandag wyd as \u27n ikoon beskou. In die 1980\u27s was hy egter \u27n randfiguur van die Afrikaner-establishment. Hoe het hierdie transformasie van ikonoklas na ikoon oor tyd plaasgevind? Kombuis het sy loopbaan as digter en skrywer in die 1980\u27s begin. Hy het homself aan die spits van die sogenaamde Tagtigerbeweging in die letterkunde bevind, en in 1989 het hy aan die berugte Voëlvry-toer deelgeneem wat sy status as dwarstrekker verskans het. Sy letterkunde en musiek van dié dekade het gepoog om die waardes en norme van die heersende Afrikaner-establishment omver te gooi. Die vroeë 1990\u27s het bepaalde veranderinge in sowel die breër sosio-politieke konteks van Suid-Afrika as Kombuis persoonlik gesien. Sy beeld onder Afrikaners het stelselmatig begin verander, en soos sy loopbaan in die jare sedertdien ontwikkel het, het hy algaande ikoonstatus bekom. Hierdie artikel stel ondersoek in na Koos Kombuis se transformasie van ikonoklas na ikoon binne Afrikaner geledere.
The Afrikaans author and musician, Koos Kombuis, is widely regarded as an icon today. In the 1980s, however, he was a fringe figure, arguably even an iconoclast of the Afrikaner establishment. How did this transformation from iconoclast to icon happen over time? Kombuis began his career as poet and author in the 1980s. He found himself as a leading figure of the so-called Tagtiger movement in Afrikaans literature, and in 1989 he participated in the Voëlvry tour which entrenched his image as an Afrikaner iconoclast. His literature and music of this particular decade attempted to overthrow the accepted norms and values of the reigning Afrikaner establishment. The early 1990s saw certain changes in the broader South African socio-political context as well as in Kombuis personally. His image among Afrikaners started changing and as his career developed in the years since, he gradually obtained icon status. This article investigates Koos Kombuis\u27s transformation from iconoclast to icon within Afrikaner society
Comparison of KOOS scores of middle-aged patients undergoing total knee arthroplasty to the general Dutch population using KOOS percentile curves: the LOAS study
No full textBackground: We aimed to investigate the application of the Knee Injury and Osteoarthritis Outcome Score (KOOS) percentile curves, using preoperative and postoperative data of patients with knee osteoarthritis undergoing total knee arthroplasty (TKA).Methods: We used Longitudinal Leiden Orthopedics Outcomes of Osteo-Arthritis study data of patients between 45 and 65 years and undergoing primary TKA. KOOS scores (0-100) were obtained preoperatively and 6, 12, and 24 months after TKA. Preoperative knee radiographs were assessed according to Kellgren-Lawrence (KL) in a subset (37%) of patients. Comorbidities were self-reported using a standardized questionnaire. The median (interquartile range) population-level KOOS scores were plotted on previously developed population-based KOOS percentile curves. In addition, we assessed the application of the curves on patient level and investigated differences in scores between patients with preoperative KL scores = 3 and presence (vs absence) of comorbidities.Results: The study population consisted of 853 patients (62% women, mean age 59 years, body mass index 30 kg/m(2)) with knee osteoarthritis undergoing primary TKA. Preoperatively, median KOOS scores of all subscales were at or below the 2.5th percentile. Scores increased to approximately the 25th percentile 12 months postoperatively. Greater improvements were observed in pain and less improvements in sport and recreational function and quality of life. Patients with higher preoperative KL scores and without comorbidities showed greater improvements.Conclusion: The KOOS percentile curves provided visual insights in knee complaints of patients relative to the general population. Furthermore, the KOOS percentile curves give insight in how preoperative patient characteristics are correlated with postoperative results. (C) 2021 The Author(s). Published by Elsevier Inc.Clinical epidemiolog
Longitudinal Invariance Testing Of The Knee Injury Osteoarthritis Outcome Score For Joint Replacement Scale (KOOS-JR)
No full text# Background
The Knee Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR) is a seven-item patient reported outcome measure used to assess perceived knee health. Though commonly used, the longitudinal psychometric properties of the KOOS-JR have not been established and further characterization of its structural validity and multi-group invariance properties is warranted.
# Purpose
The purpose of this study was to evaluate psychometric properties of the KOOS-JR in a large sample of patients who received care for knee pathology.
# Study Design
Original research.
# Methods
Longitudinal data extracted from the Surgical Outcome System (SOS) database of 13,470 knee pathology patients who completed the KOOS-JR at baseline, three-months, six- months, and one-year. Scale structure was assessed with confirmatory factor analysis (CFA), while multi-group and longitudinal invariance properties were assessed with CFA-based procedures. Latent group means were compared with statistical significance set at α ≤ .05 and Cohen’s d effect size as d = 0.2 (small), d = 0.5 (medium), and d = 0.8 (large).
# Results
CFA results exceeded goodness-of-fit indices at all timepoints. Multi-group invariance properties passed test requirements. Longitudinal analysis identified a biased item resulting in removal of item #1; the retained six-item model (KOOS-JR-6) passed longitudinal invariance requirements. KOOS-JR-6 scores significantly changed over time (p ≤ .001, Mdiff = 1.08, Cohen’s d = 0.57): the highest scores were at baseline examination and the lowest at 12-month assessment.
# Conclusions
The KOOS-JR can be used to assess baseline differences between males and females, middle and older aged adults, and patients receiving total knee arthroplasty or non-operative care. Caution is warranted if the KOOS-JR is used longitudinally due to potential measurement error associated with item #1. The KOOS-JR-6 may be a more viable option to assess change over time; however, more research is warranted.
# Level of Evidence
3
© The Author(s
Knee Injury and Osteoarthritis Outcome Score (KOOS): systematic review and meta-analysis of measurement properties
No full textObjective To conduct a systematic review and meta-analysis to synthesize evidence regarding measurement properties of the Knee injury and Osteoarthritis Outcome Score (KOOS). Design A comprehensive literature search identified 37 eligible papers evaluating KOOS measurement properties in participants with knee injuries and/or osteoarthritis (OA). Methodological quality was evaluated using the COSMIN checklist. Where possible, meta-analysis of extracted data was conducted for all studies and stratified by age and knee condition; otherwise narrative synthesis was performed. Results KOOS has adequate internal consistency, test-retest reliability and construct validity in young and old adults with knee injuries and/or OA. The ADL subscale has better content validity for older patients and Sport/Rec for younger patients with knee injuries, while the Pain subscale is more relevant for painful knee conditions. The five-factor structure of the original KOOS is unclear. There is some evidence that the KOOS subscales demonstrate sufficient unidimensionality, but this requires confirmation. Although measurement error requires further evaluation, the minimal detectable change for KOOS subscales ranges from 14.3 to 19.6 for younger individuals, and ≥20 for older individuals. Evidence of responsiveness comes from larger effect sizes following surgical (especially total knee replacement) than non-surgical interventions. Conclusions KOOS demonstrates adequate content validity, internal consistency, test-retest reliability, construct validity and responsiveness for age- and condition-relevant subscales. Structural validity, cross-cultural validity and measurement error require further evaluation, as well as construct validity of KOOS Physical function Short form. Suggested order of subscales for different knee conditions can be applied in hierarchical testing of endpoints in clinical trials. Systematic review registration: PROSPERO (CRD42011001603)
Du nouveau sur la mystérieuse mission de Batavia à Saïgon en 1890
No full textThis note in part solves the mystery of the Chinese travelogue of 1890 published with a translation and introduction by Claudine Salmon and Ta Trong Hiêp in Archipel 47 (1994). The emissary Qu Molin is the Dutch sinologist and then member of the Council of the Indies W. P. Groeneveldt, and the interpreter Yang is the Dutch sinologist A. A. de Jongh. The purpose of this mission to French Indo-China was to study the advantages and disadvantages of the opium monopoly there, in view of its possible introduction in the Netherlands Indies. The identity of the author can be tentatively established. His name is Tan Siu Eng (1833-1906), he was a xiucai from Xiamen, who was brought to the Indies by Groeneveldt in 1874 as his personal teacher/ clerk and remained his assistant afterwards.Kuiper Koos. Du nouveau sur la mystérieuse mission de Batavia à Saïgon en 1890. In: Archipel, volume 77, 2009. pp. 27-44
De militaire geneeskunde van Gerard van Swieten
No full textDE MILITAIRE GENEESKUNDE VAN GERARD VAN SWIETEN
Ter herdenking van de 250-jarige sterfdag van de grote Nederlandse medicus Gerard van Swieten, sinds 1745 lijfarts van keizerin Maria Theresia in Oostenrijk, bespreekt dit artikel diens handboek over militaire geneeskunde uit 1758. De invloed van dit succesvolle leerboek en enkele recepten daaruit, tijdens de afgelopen eeuwen, wordt selectief toegelicht met een literatuuroverzicht en meerdere commentaren,
waaronder ook enkele door Van Swieten zelf.
THE MILITARY MEDICINE OF GERARD VAN SWIETEN
In commemoration of the 250th anniversary of the death of the great Dutch physician Gerard van Swieten, personal physician to Empress Maria Theresa of Austria since 1745, this article discusses his handbook on military medicine from 1758. The influence of this successful
textbook and some recipes from it, during the past centuries, is selectively illustrated with a literature overview and several commentaries, including some by Van Swieten himsel
De militaire geneeskunde van Gerard van Swieten
No full textDE MILITAIRE GENEESKUNDE VAN GERARD VAN SWIETEN
Ter herdenking van de 250-jarige sterfdag van de grote Nederlandse medicus Gerard van Swieten, sinds 1745 lijfarts van keizerin Maria Theresia in Oostenrijk, bespreekt dit artikel diens handboek over militaire geneeskunde uit 1758. De invloed van dit succesvolle leerboek en enkele recepten daaruit, tijdens de afgelopen eeuwen, wordt selectief toegelicht met een literatuuroverzicht en meerdere commentaren,
waaronder ook enkele door Van Swieten zelf.
THE MILITARY MEDICINE OF GERARD VAN SWIETEN
In commemoration of the 250th anniversary of the death of the great Dutch physician Gerard van Swieten, personal physician to Empress Maria Theresa of Austria since 1745, this article discusses his handbook on military medicine from 1758. The influence of this successful
textbook and some recipes from it, during the past centuries, is selectively illustrated with a literature overview and several commentaries, including some by Van Swieten himsel
Self-reported knee pain and disability among healthy individuals: reference data and factors associated with the Knee injury and Osteoarthritis Outcome Score (KOOS) and KOOS-Child
No full text© 2017 Osteoarthritis Research Society International Objective To develop normative reference data for the Knee injury and Osteoarthritis Outcome Score (KOOS) and KOOS-Child, as well as investigate socio-demographic, psychological and physical factors associated with knee pain and disability among healthy adults. Method The KOOS or KOOS-Child (each containing five subscales) was administered to participants aged 8–101 years within the 1000 Norms Project, an observational study of 1000 self-reported healthy individuals. Self-efficacy, physical activity, body mass index (BMI), lower limb alignment, knee frontal plane projection angle (FPPA), knee range of motion (ROM), knee and hip strength, six-minute walk, 30-second chair stand and timed up and down stairs tests were collected. KOOS data were dichotomised using established cut-off scores and logistic regression analyses were conducted for each subscale. Results Socio-demographic characteristics were similar to the Australian population. Normative reference data were generated for children (8–17 years) and adults (18–101 years). Female adults were up to twice as likely to report knee pain, symptoms and sport/recreation (Sport/Rec) limitations compared to males (
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