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1.
J Magn Reson Imaging ; 45(1): 42-50, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27251647

RESUMO

PURPOSE: To characterize the distribution of bone marrow fat in hip osteoarthritis (OA) using magnetic resonance imaging (MRI) and to assess its use as a potential biomarker. MATERIALS AND METHODS: In all, 67 subjects (39 female, 28 male) with either total hip replacement (THA) or different severities of radiographic OA, assessed by Kellgren-Lawrence grading (KLG), underwent 3T MRI of the pelvis using the IDEAL sequence to separate fat and water signals. Six regions of interest (ROIs) were identified within the proximal femur. Within each ROI the fractional-fat distribution, represented by pixel intensities, was described by its mean, standard deviation, skewness, kurtosis, and entropy. RESULTS: Hips were graded: 12 as severe symptomatic (THA), 33 had KLG0 or 1, 9 were KLG2, 11 with KLG3, and 2 with KLG4 were analyzed together. The fractional-fat content in the whole proximal femur did not vary with severity in males (mean (SD) 91.2 (6.0)%) but reduced with severity in females from 89.1 (6.7)% (KLG0,1), 91.5 (2.9)% (KLG2), 85.8 (16.7)% (KLG3,4) to 77.5 (11.9)% (THA) (analysis of variance [ANOVA] P = 0.029). These differences were most pronounced in the femoral head, where mean values fell with OA severity in both sexes from 97.9% (2.5%) (KLG0,1) to 73.0% (25.9%) (THA, P < 0.001) with the largest difference at the final stage. The standard deviation and the entropy of the distribution both increased (P < 0.001). CONCLUSION: Descriptors of the fractional fat distribution varied little with the severity of OA until the most severe stage, when changes appeared mainly in the femoral head, and have, therefore, limited value as biomarkers. LEVEL OF EVIDENCE: 2 J. Magn. Reson. Imaging 2017;45:42-50.


Assuntos
Tecido Adiposo/diagnóstico por imagem , Adiposidade , Medula Óssea/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Osteoartrite do Quadril/diagnóstico por imagem , Tecido Adiposo/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores , Medula Óssea/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Quadril/patologia , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
2.
Br J Sports Med ; 46(8): 591-4, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22171339

RESUMO

OBJECTIVES: To obtain data regarding admissions of U19 rugby players to spinal injury units in Great Britain and Ireland and to compare this with a recent peak in presentation in Scotland. To assess the current state of data collection and subsequent analysis of serious neck injuries. To analyse the mechanism of injury in this group of at-risk players. DESIGN: Retrospective case series. PARTICIPANTS: Spinal injury units in Great Britain and Ireland. OUTCOME MEASURES: Annual frequency of serious neck injuries. Analysis of injury types, neurological deficit and mechanism of injury. RESULTS: 36 Injuries were recorded. 10 Of these occurred in Scotland since 1996 of which six have occurred in the past 4 years. This compared with 14 in Ireland over the same period. 12 Cases were traced in England and Wales since 2000; records were not available before this date. No prospective collation of data is performed by the home unions and inconsistency of data collection exists. The mean age was 16.2 years. 16 Of the 36 admissions had complete neurological loss, 9 had incomplete neurological injury and 11 had cervical column injury without spinal cord damage. The mechanism of injury was tackle in 17 (47%), scrum in 13 (36%), two each due to the maul and collision, and one each due to a kick and a ruck. Some degree of spinal cord injury occurred in 92% of scrum injuries (61% complete) and 53% of tackle injuries (29% complete). CONCLUSION: U19 rugby players continue to sustain serious neck injuries necessitating admission to spinal injury units with a low but persistent frequency. The recent rate of admission in Scotland is disproportionately high when the respective estimated playing populations are considered. While more injuries were sustained in the tackle, spinal cord injury was significantly more common in neck injury sustained in the scrum (p<0.001). No register of catastrophic neck injuries exists despite repeated calls over the past three decades, and a study such as this has not been reported before. Data collection of this serious category of injury is incomplete and very variable across the home unions, as a consequence a large proportion of the serious neck injuries that have occurred in U19 players over the past 14 years have not been analysed. Rigorous data collection and analysis have to be established so that problem areas of the game such as scrum engagement and the tackle can be made safer.


Assuntos
Futebol Americano/lesões , Hospitalização/estatística & dados numéricos , Lesões do Pescoço/terapia , Traumatismos da Medula Espinal/terapia , Adolescente , Vértebras Cervicais/lesões , Criança , Humanos , Irlanda/epidemiologia , Luxações Articulares/epidemiologia , Luxações Articulares/etiologia , Luxações Articulares/terapia , Masculino , Auditoria Médica , Lesões do Pescoço/epidemiologia , Lesões do Pescoço/etiologia , Estudos Retrospectivos , Traumatismos da Medula Espinal/epidemiologia , Traumatismos da Medula Espinal/etiologia , Reino Unido/epidemiologia
3.
Calcif Tissue Int ; 89(6): 472-82, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21972050

RESUMO

Osteoblasts in vitro differentiate from a proliferating to a mineralizing phenotype upon transfer to a medium rich in beta-glycerophosphate and ascorbic acid. The nutritional requirements of the cells at different stages of this differentiation process are not known. In other cell types, nutritional supplementation during surgery can improve the outcome in terms of speed of patient recovery and prognosis. There is therefore the potential for supplementation at the site of fracture repair or bone grafting with critical osteoblast nutritional factors to potentially accelerate healing. In this study we investigate which common cell nutrients are required for the proliferating and mineralizing stages of osteoblast differentiation. Medium containing 5.5 mM glucose was sufficient to achieve maximal proliferation of primary calvarial osteoblasts and human osteoblast cell lines, with some added benefit of additional glutamine supplementation. However, when cells were stimulated to mineralize, glucose was insufficient to support their energetic requirements. Only when cells were supplemented with glucose together with glutamine were high levels of osteocalcin expression observed together with mineralized nodules in culture, suggesting that this would be a useful combination to assess in cultures of primary human osteoblasts to determine whether it may have beneficial effects during fracture surgery, bone grafting, and fixation of uncemented arthroplasty implants.


Assuntos
Diferenciação Celular , Glutamina/farmacologia , Osteoblastos/citologia , Crânio/metabolismo , Animais , Calcificação Fisiológica , Células Cultivadas , Humanos , Camundongos , Camundongos Endogâmicos C57BL , Osteoblastos/metabolismo , Osteocalcina/metabolismo , Fenótipo , Ácido Pirúvico/metabolismo , Crânio/citologia
4.
Inhal Toxicol ; 20(9): 829-38, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18645723

RESUMO

Methamphetamine (MA) is currently the most widespread illegally used stimulant in the United States. Use of MA by smoking is the fastest growing mode of administration, which increases concerns about potential pulmonary and other medical complications. A murine exposure system was developed to study the pulmonary affects of inhaled MA. Mice were exposed to 25-100 mg vaporized MA and assessments were made 3 h following initiation of exposure to model acute lung injury. Inhalation of MA vapor resulted in dose-dependent increases in MA plasma levels that were in the range of those experienced by MA users. At the highest MA dose, histological changes were observed in the lung and small but significant increases in lung wet weight to body weight ratios (5.656 +/- 0.176 mg/g for the controls vs. 6.706+/- 0.135 mg/g for the 100 mg MA-exposed mice) were found. In addition, there was 53% increase in total protein in bronchoalveolar lavage (BAL) fluid, greater than 20% increase in albumin levels in the BAL fluid, greater than 2.5-fold increase in lactate dehydrogenase levels in the BAL fluid, and reduced total BAL cell numbers (approximately 77% of controls). Levels of the early response cytokines tumor necrosis factor (TNF)-alpha and interleukin (IL)-6 were dose-dependently increased in BAL fluid of MA-exposed mice. Exposure to 100 mg MA significantly increased free radical generation in the BAL cells to 107-146% of controls and to approximately 135% of the controls in lung tissue in situ. Together, these data show that acute inhalation exposure to relevant doses of volatilized MA is associated with elevated free radical formation and significant lung injury.


Assuntos
Estimulantes do Sistema Nervoso Central/toxicidade , Pneumopatias/induzido quimicamente , Pulmão/efeitos dos fármacos , Metanfetamina/toxicidade , Doença Aguda , Administração por Inalação , Albuminas/análise , Animais , Líquido da Lavagem Broncoalveolar/química , Líquido da Lavagem Broncoalveolar/citologia , Citocinas/análise , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , L-Lactato Desidrogenase/análise , Pulmão/patologia , Pneumopatias/patologia , Camundongos , Camundongos Endogâmicos BALB C , Tamanho do Órgão/efeitos dos fármacos , Espécies Reativas de Oxigênio/análise
5.
Mediators Inflamm ; 2008: 640659, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19125188

RESUMO

INTRODUCTION: Posttraumatic psychopathology (PTP) describes the spectrum of conditions that can complicate the recovery from commonly occurring musculoskeletal trauma. There is a clear association with the activation of the hypothalamic-pituitary-adrenal axis (HPAA), and we wished to examine the predictive value of proinflammatory markers of the HPAA and of the GABA, which acts as an inhibitory regulator. METHODS: Levels of proinflammatory markers and GABA were measured in 84 patients who had suffered musculoskeletal injuries requiring hospitalisation. PTP was assessed by the use of the General Health Questionnaire (GHQ) at presentation and again at two- and six-month reviews. RESULTS: Significant psychological disturbance was noted in 39% of patients at two months and falling back to 18% by six months. There was no correlation between any of the markers tested at presentation and PTP at follow-up. DISCUSSION: The HPAA response to trauma and the development of PTP are extremely complex. It is unlikely that a simple blood assay will provide significant predictive information, while incident specific information and patient perception are of more practical use.


Assuntos
Biomarcadores/metabolismo , Inflamação/metabolismo , Doenças Musculoesqueléticas/imunologia , Doenças Musculoesqueléticas/psicologia , Sistema Musculoesquelético , Transtornos de Estresse Pós-Traumáticos/imunologia , Adolescente , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Musculoesqueléticas/patologia , Doenças Musculoesqueléticas/fisiopatologia , Sistema Musculoesquelético/imunologia , Sistema Musculoesquelético/lesões , Estudos Prospectivos , Transtornos de Estresse Pós-Traumáticos/fisiopatologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Inquéritos e Questionários , Adulto Jovem
6.
J Trauma Acute Care Surg ; 84(5): 762-770, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29370062

RESUMO

BACKGROUND: Trauma center designation in excess of need risks dilution of experience, reduction in research and training opportunities, and increased costs. The objective of this study was to evaluate the use of a novel data-driven approach (whole-system mathematical modeling of patient flow) to compare the configuration of an existing trauma system with a mathematically optimized design, using the State of Colorado as a case study. METHODS: Geographical network analysis and multiobjective optimization, 105,448 patients injured in the State of Colorado between 2009 and 2013, who met the criteria for inclusion in the state-mandated trauma registry maintained by the Colorado Department of Public Health and Environment were included. We used the Nondominant Sorting Genetic Algorithm II to conduct a multiobjective optimization of possible trauma system configurations, with the objectives of minimizing total system access time, and the number of casualties who could not reach the desired level of care. RESULTS: Modeling suggested that system configurations with high-volume Level I trauma centers could be mathematically optimized with two centers rather than the current three (with an estimated annual volume of 970-1,020 and 715-722 severely injured patients per year), four to five Level II centers, and 12 to 13 Level III centers. Configurations with moderate volume Level I centers could be optimized with three such centers (with estimated institutional volumes of 439-502, 699-947, and 520-726 severely injured patients per year), two to five Level II centers, and eight to ten Level III centers. CONCLUSION: The modeling suggested that the configuration of Colorado's trauma system could be mathematically optimized with fewer trauma centers than currently designated. Consideration should be given to the role of optimization modeling to inform decisions about the ongoing efficiency of trauma systems. However, modeling on its own cannot guarantee improved patient outcome; thus, the use of model results for decision making should take into account wider contextual information. LEVEL OF EVIDENCE: Epidemiological, Level IV.


Assuntos
Avaliação de Resultados em Cuidados de Saúde/organização & administração , Sistema de Registros , Centros de Traumatologia/economia , Triagem/organização & administração , Ferimentos e Lesões/economia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Colorado/epidemiologia , Feminino , Humanos , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Ferimentos e Lesões/diagnóstico , Ferimentos e Lesões/epidemiologia , Adulto Jovem
7.
Orthop Trauma ; 30(2): 117-122, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27418950

RESUMO

Older patients presenting with hip fractures are some of the frailest and sickest patients in hospital. In addition to complex medical problems and comorbidities, they have to overcome the additional physiological challenges posed by the hip fracture itself, and subsequent surgery. Hip fracture associated morbidity and mortality at one year remains high. Published guidelines stress the need for a multidisciplinary approach and the importance of the care environment for good outcomes. A combined management approach identifies and addresses not only the surgical but also the complex analgesic, medical, cognitive, nutritional, social and rehabilitation needs of our patients, thereby improving outcome for our patients.

8.
Injury ; 47(2): 439-43, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26657888

RESUMO

INTRODUCTION: Hip fractures are a significant cause of morbidity and mortality to the increasing elderly population. The Scottish Hip Fracture Audit started in 1993 with national audits from 2002. It was a national prospective audit reporting on clinical standards in hip fracture care and produced an annual report. Due to national funding changes the continual audit was discontinued in 2008. In 2013, the MSK Audit Group published a "snapshot" into a 4 month period of hip fracture care in Scotland. Our purpose was to identify whether there had been an initial improvement in hip fracture care and whether this improvement was sustained with the discontinuation of the annual audit. METHODS: The reported outcomes from the annual Scottish Hip Fracture Audit from 2003 to 2008 were compared to the latest MSK Hip Fracture Audit published in 2013. Some data is available from the 2014 MSK Hip Fracture Audit and this was also used for comparison purposes. Local audit co-ordinators at each participating site collected a data-set for all patients admitted with a hip fracture. The case mix variables and management variables were compared for the reported years. RESULTS: The continual audit demonstrated an improvement in the percentage of patients discharged from accident and emergency in 4h (80.5% 2003 vs. 96% 2008) which was not maintained 5 years later. An improvement in the percentage of patients having surgery within 48 h of admission (89.9-98.4%) was also not maintained after 5 years (91.8%). 30 day mortality improved with continual audit, a trend which continued in 2013. The re-introduction of continuous audit in 2014 demonstrated an improvement in accident and emergency waiting times and time to theatre. DISCUSSION: The Scottish Hip Fracture Audit demonstrated improved standards of care until it was discontinued in 2008. The improvement was not sustained throughout all variables with the 2013 audit. With the re-introduction of regular audit, standards once again improved. We would recommend a more regular audit in an effort to not only improve standards of care for patients with a hip fracture but to maintain them.


Assuntos
Bases de Dados Factuais , Fraturas do Quadril/epidemiologia , Auditoria Médica , Melhoria de Qualidade/normas , Qualidade da Assistência à Saúde/normas , Pesquisa sobre Serviços de Saúde , Fraturas do Quadril/terapia , Humanos , Avaliação de Resultados em Cuidados de Saúde , Encaminhamento e Consulta , Padrão de Cuidado , Reino Unido/epidemiologia
9.
Injury ; 47(7): 1543-6, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27173091

RESUMO

INTRODUCTION: The geometrical shape of the proximal femur has previously been shown to predict primary hip fractures. Hip fractures are routinely diagnosed on plain radiographs of the pelvis, and these have both hips viewable. We have investigated if statistical shape modelling of the uninvolved hip on plain radiographs, at the time of the first hip fracture episode, could predict a subsequent 'second fracture' on that (uninvolved) side. MATERIALS AND METHODS: 60 radiographs taken at the time of the index hip fracture were blinded and separated into two arms; patients sustaining one hip fracture only (n=30), and those who went on to sustain a second fracture (n=30), over the three-year follow-up period. Two separate shape models were used for these groups and compared using t-tests or Mann-Whitney U-tests, along with Cohen's d to measure the effect size of each measure. RESULTS: We found no statistically significant difference in the shape of the femur between the first fracture and second fracture group (p>0.05) and no results reached a "medium" effect size (Cohen's d <0.5). CONCLUSIONS: Shape modelling is feasible and can be applied in the routine clinical setting. However, we were unable to elucidate any predictive value in this relatively small sample. A reliable radiograph-based method of identifying patients at risk of second fracture would be of value in planning prevention, service provision, and cost analysis. Further work is required and a study with more patients might exclude the type 2 error in our work.


Assuntos
Fêmur/patologia , Fraturas do Quadril/patologia , Articulação do Quadril/patologia , Interpretação de Imagem Radiográfica Assistida por Computador , Radiografia , Idoso , Idoso de 80 Anos ou mais , Densidade Óssea , Análise Custo-Benefício , Feminino , Fêmur/diagnóstico por imagem , Seguimentos , Fraturas do Quadril/diagnóstico por imagem , Fraturas do Quadril/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Anatômicos , Modelos Estatísticos , Valor Preditivo dos Testes , Reprodutibilidade dos Testes
10.
Disabil Rehabil ; 27(18-19): 1099-105, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16278178

RESUMO

PURPOSE: To report on experience of national-level audit, guidelines and standards for hip fracture care in Scotland. METHODS: Scottish Hip Fracture Audit (from 1993) documents case-mix, process and outcomes of hip fracture care in Scotland. Evidence-based national guidelines on hip fracture care are available (1997, updated 2002). Hip fracture serves as a tracer condition by the health quality assurance authority for its work on older people, which reported in 2004. RESULTS: Audit data are used locally to document care and support and monitor service developments. Synergy between the guidelines and the audit provides a means of improving care locally and monitoring care nationally. External review by the quality assurance body shows to what extent guideline-based standards relating to A&E care, pre-operative delay, multidisciplinary care and audit participation are met. CONCLUSION: Three national-level initiatives on hip fracture care have delivered: Reliable and large-scale comparative information on case-mix, care and outcomes; evidence-based recommendations on care; and nationally accountable standards inspected and reported by the national health quality assurance authority. These developments are linked and synergistic, and enjoy both clinical and managerial support. They provide an evolving framework for clinical governance, with casemix-adjusted outcome assessment for hip fracture care as a next step.


Assuntos
Fraturas do Quadril/reabilitação , Auditoria Médica , Grupos Diagnósticos Relacionados , Fraturas do Quadril/cirurgia , Humanos , Avaliação de Resultados em Cuidados de Saúde , Guias de Prática Clínica como Assunto , Instituições Residenciais/estatística & dados numéricos , Escócia
11.
Disabil Rehabil ; 27(18-19): 1117-22, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16278180

RESUMO

PURPOSE: To examine the carer's role regarding early hospital rehabilitation. METHOD: A qualitative study, using semi-structured interviews with 30 carers. A convenience sample was obtained through participants volunteering for the study. Interviews were of 30 - 45 minutes duration and were audiotaped. The transcripts were read in their entirety by all authors. Main themes were identified and coded. RESULTS: Twenty women and ten men were recruited, who cared for 22 women and eight men. A third of the interviewees reported other caring responsibilities. Carers performed a range of tasks for the patient and most revolved around the key activity of hospital visiting. A range of functions were undertaken, including: help with eating and drinking; providing the opportunity for social interaction; acting as a link between the external world and hospital; and offering emotional support. CONCLUSIONS: Carers not only provided practical help but also offered psychological support. Our study highlights the key role of carers in the rehabilitation of patients with hip fracture and provides support for the recommendation that family members should be provided with information regarding rehabilitation. Carers need to be regarded as a resource by hospital staff, given their key role in enhancing patient motivation.


Assuntos
Cuidadores , Fraturas do Quadril/reabilitação , Idoso de 80 Anos ou mais , Cuidadores/psicologia , Estudos de Avaliação como Assunto , Família/psicologia , Feminino , Fraturas do Quadril/psicologia , Hospitalização , Humanos , Masculino , Estresse Psicológico/prevenção & controle
12.
J Clin Med Res ; 7(1): 45-51, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25368702

RESUMO

BACKGROUND: Hyponatremia (serum sodium < 135 mmol/L) is the commonest electrolyte imbalance encountered in clinical practice. It is associated with multiple poor clinical outcomes including increased length of hospital stay, institutionalization and mortality. Prevalence of hyponatremia is higher in frail patient groups, and elderly patients with fragility fractures (EPFF) are particularly susceptible. This study aimed to establish the impact of hyponatremia on total length of inpatient stay (TLOS), need for inpatient rehabilitation and mortality in EPFF. METHODS: Prospective observational study of consenting adults aged ≥ 65 years admitted with a fragility fracture to a university hospital between January 7, and April 4, 2013. Demographic and clinical data, length of hospital stay, discharge destination and any participant deaths were recorded. Prevalence of hyponatremia on admission and incidence of cases developing in hospital were reported. Basic demographic data and serum sodium results were included in multivariate linear regression models for TLOS. Difference in mortality rate and proportion of individuals discharged to inpatient rehabilitation between the hyponatremic and normonatremic group were tested using Chi-squared and Fisher's exact tests. Unadjusted odds ratios (ORs) and 95% confidence intervals (CIs) were also calculated. RESULTS: Of 212 cases, 127 (60%) EPFF were recruited (mean age 79 years, 78% female). Of those not recruited, 66 had incapacity to consent and 19 refused participation. Thirty-three cases of hyponatremia were identified; point prevalence on admission was 13.4% and a further 12.6% developed hyponatremia during admission. There were no statistically significant differences in patient characteristics between the hyponatremic and normonatremic group. Hyponatremic participants had a 66.7% increased time from admission to surgery (P = 0.014) and a 51.5% increased length of index hospital stay (P = 0.006). Factors independently associated with increased TLOS were age (P = 0.03) and drop in sodium during admission (P < 0.001). Mortality rate and proportion of participants discharged to inpatient rehabilitation were higher in the hyponatremic group (OR 4.2 (95% CI: 0.9 - 19.8) and 2.2 (95% CI: 0.9 - 5.1), respectively), but figures did not reach statistical significance. CONCLUSIONS: Hyponatremia is highly prevalent in EPFF, seen in 33/127 cases (26%), and is associated with increased length of index hospital stay. Drop in serum sodium during admission was independently associated with increased TLOS.

13.
Geriatr Orthop Surg Rehabil ; 6(4): 295-302, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26623165

RESUMO

PURPOSE/INTRODUCTION: We have examined the immune status of elderly patients who underwent surgery for a hip fracture, an injury associated with poor postoperative outcomes, to identify specific immune defects. METHODS: In a cohort observational study, 16 patients undergoing surgery for hip fractures had immune function evaluation prior to surgery, and then at 3 and 7 days postoperatively, using flow cytometry for phenotype and for monocyte and granulocyte phagocytic function and respiratory burst. Serum samples were stored and batch analyzed using a human cytokine 25-plex panel. RESULTS: We report significant loss of innate immune function, related specifically to reduced granulocyte numbers by day 7 (P < .0001, flow cytometry; P < .05 white blood cells), and although granulocyte ability to take up opsonized Escherichia coli was increased (P < .05), the ability of those cells to generate a respiratory burst was reduced at days 3 and 7 (P < .05). Monocyte respiratory burst was also significantly reduced (P < .05). Serum cytokine levels indicated very poor T-cell function. CONCLUSION: We have demonstrated that the antimicrobial immune response is profoundly reduced after surgery in elderly patients with hip fractures. The effect was sustained up to 7 days postoperatively, identifying these patients as particularly vulnerable to bacterial infections.

14.
J Trauma Acute Care Surg ; 79(5): 756-65, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26335775

RESUMO

BACKGROUND: The optimal geographic configuration of health care systems is key to maximizing accessibility while promoting the efficient use of resources. This article reports the use of a novel approach to inform the optimal configuration of a national trauma system. METHODS: This is a prospective cohort study of all trauma patients, 15 years and older, attended to by the Scottish Ambulance Service, between July 1, 2013, and June 30, 2014. Patients underwent notional triage to one of three levels of care (major trauma center [MTC], trauma unit, or local emergency hospital). We used geographic information systems software to calculate access times, by road and air, from all incident locations to all candidate hospitals. We then modeled the performance of all mathematically possible network configurations and used multiobjective optimization to determine geospatially optimized configurations. RESULTS: A total of 80,391 casualties were included. A network with only high- or moderate-volume MTCs (admitting at least 650 or 400 severely injured patients per year, respectively) would be optimally configured with a single MTC. A network accepting lower-volume MTCs (at least 240 severely injured patients per year) would be optimally configured with two MTCs. Both configurations would necessitate an increase in the number of helicopter retrievals. CONCLUSION: This study has shown that a novel combination of notional triage, network analysis, and mathematical optimization can be used to inform the planning of a national clinical network. Scotland's trauma system could be optimized with one or two MTCs. LEVEL OF EVIDENCE: Care management study, level IV.


Assuntos
Serviços Médicos de Emergência/organização & administração , Acessibilidade aos Serviços de Saúde/organização & administração , Especialização/estatística & dados numéricos , Centros de Traumatologia/organização & administração , Triagem/organização & administração , Ferimentos e Lesões/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Atenção à Saúde/organização & administração , Serviço Hospitalar de Emergência/organização & administração , Feminino , Geografia , Necessidades e Demandas de Serviços de Saúde , Humanos , Sistemas de Informação/organização & administração , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos , Escócia , Ferimentos e Lesões/diagnóstico , Ferimentos e Lesões/mortalidade
15.
PLoS One ; 9(2): e88272, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24505459

RESUMO

INTRODUCTION: Hyponatremia (serum sodium<135 mMol/L) is the commonest electrolyte imbalance encountered in clinical practice. It is associated with multiple poor clinical outcomes including increased mortality, longer hospital stay, falls and fractures. Prevalence is higher in frail patient groups, and elderly patients with fragility fractures (EPFF) are particularly susceptible. Euvolemic hyponatremia due to syndrome of inappropriate anti-diuretic hormone (SIADH) is widely assumed to be the commonest cause. However, little is known about the epidemiology and etiology of hyponatremia in EPFF. This study established prevalence, incidence and etiology of hyponatremia in EPFF. METHODS: Prospective observational study of consenting adults aged ≥65 years admitted with a fragility fracture to a university hospital between 7th January and 4th April 2013. Prevalence of hyponatremia on admission and incidence of cases developing in hospital were reported. Etiology of cases of hyponatremia was determined by consensus of an expert panel using pre-specified data collected daily. RESULTS: 127/212 (60%) EPFF were recruited (mean age 79 yrs, 78% female). Two participants withdrew mid-study. Of those not recruited, 66 had incapacity to consent and 19 refused participation. Point prevalence of hyponatremia on admission was 13.4% and a further 12.6% developed hyponatremia during admission. Hypovolemic hyponatremia was predominant (70%). 73% of cases were multi-factorial in etiology. The commonest potentially causative factors in cases of hyponatremia were thiazide diuretics (76%), dehydration (70%), proton pump inhibitors (70%), SIADH (27%) and mirtazapine (15%). CONCLUSION: Hyponatremia is highly prevalent in EPFF, seen in 26% of cases. Dehydration and prescription of thiazide diuretics and proton pump inhibitors were the commonest potentially causative factors, not SIADH.


Assuntos
Fraturas Ósseas/complicações , Fraturas Ósseas/epidemiologia , Hiponatremia/complicações , Hiponatremia/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Hiponatremia/etiologia , Masculino , Prevalência , Estudos Prospectivos
16.
Trials ; 15: 44, 2014 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-24484541

RESUMO

BACKGROUND: Approximately 20% of patients are not satisfied with the outcome of total knee replacement, great volumes of which are carried out yearly. Physiotherapy is often provided by the NHS to address dysfunction following knee replacement; however the efficacy of this is unknown. Although clinically it is accepted that therapy is useful, provision of physiotherapy to all patients post-operatively does not enhance outcomes at one year. No study has previously assessed the effect of targeting therapy to individuals struggling to recover in the early post-operative phase.The aim of the TRIO study is to determine whether stratifying care by targeting physiotherapy to those individuals performing poorly following knee replacement is effective in improving the one year outcomes. We are also investigating whether the structure of the physiotherapy provision itself influences outcomes. METHODS/DESIGN: The study is a multi-centre prospective randomised controlled trial (RCT) of patients undergoing primary total knee replacement, with treatment targeted at those deemed most susceptible to gain from it. Use of the national PROMS programme for pre-operative data collection allows us to screen all patients at initial post-operative clinical review, and recruit only those deemed to be recovering slowly.We aim to recruit 440 patients through various NHS orthopaedic centres who will undergo six weeks of physiotherapy. The intervention will be either 'intensive' involving both hospital and home-based functional exercise rehabilitation, or 'standard of care' consisting of home exercises. Patients will be randomised to either group using a web-based system. Both groups will receive pre and post-intervention physiotherapy review. Patients will be followed-up to one year post-operation. The primary outcome measure is the Oxford Knee Score. Secondary outcomes are patient satisfaction, functional ability, pain scores and cost-effectiveness. TRIAL REGISTRATION: Current Controlled Trials ISRCTN23357609. ClinicalTrials.gov NCT01849445.


Assuntos
Artroplastia do Joelho/reabilitação , Articulação do Joelho/cirurgia , Modalidades de Fisioterapia , Projetos de Pesquisa , Artroplastia do Joelho/economia , Fenômenos Biomecânicos , Protocolos Clínicos , Análise Custo-Benefício , Avaliação da Deficiência , Custos de Cuidados de Saúde , Humanos , Articulação do Joelho/fisiopatologia , Medição da Dor , Satisfação do Paciente , Seleção de Pacientes , Modalidades de Fisioterapia/economia , Estudos Prospectivos , Recuperação de Função Fisiológica , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Reino Unido
17.
J Bone Joint Surg Am ; 94(19): 1801-8, 2012 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-23032591

RESUMO

BACKGROUND: Hip fracture is a common cause of morbidity and mortality in the elderly. As the risk factors for hip fracture often persist after the original injury, patients remain at risk for sequential fractures. Our aim was to report the incidence, epidemiology, and outcome of sequential hip fracture in the elderly. METHODS: Data were collected during the acute hospital stay and at 120 days after admission from twenty-two acute orthopaedic units across Scotland between January 1998 and December 2005. These data were analyzed according to two separate time periods: by six-month intervals up to eight years after the primary fracture and by twenty-day intervals for the first two years after the primary fracture. RESULTS: The risk of sequential fracture was highest in the first twelve months, affecting 3% of surviving patients and decreasing to 2% per survival year thereafter. Survival to twelve months after sequential fracture was 63% compared with 68% for those with a single fracture (p = 0.03). Sequential hip fracture was also associated with greater loss of independent mobility and changes in residential status compared with single fractures. CONCLUSIONS: Sequential hip fracture is a relatively rare injury. Individuals who sustain this injury combination have poorer outcomes both in terms of survival and functional status. LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Fixação Interna de Fraturas/mortalidade , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/cirurgia , Mortalidade Hospitalar/tendências , Amplitude de Movimento Articular/fisiologia , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Intervalos de Confiança , Bases de Dados Factuais , Feminino , Seguimentos , Fixação Interna de Fraturas/métodos , Consolidação da Fratura/fisiologia , Avaliação Geriátrica/métodos , Fraturas do Quadril/diagnóstico por imagem , Humanos , Incidência , Escala de Gravidade do Ferimento , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Radiografia , Recidiva , Estudos Retrospectivos , Medição de Risco , Distribuição por Sexo , Análise de Sobrevida
18.
BMJ Open ; 2(4)2012.
Artigo em Inglês | MEDLINE | ID: mdl-22786947

RESUMO

OBJECTIVES: This study set out to pursue means of reducing mismatch in schoolboy rugby players. The primary objective was to determine whether application of previously reported thresholds of height and grip strength could be used to distinguish those 15-year-old boys appropriate to play under-18 school rugby from their peers. A secondary objective was to obtain normative data for height, weight and grip strength and to assess the variation within that data of current schoolboy rugby players. DESIGN: Cross-sectional cohort study. SETTING: 3 Scottish schools and 'Regional Assessment Centres' organised by the Scottish Rugby Union. PARTICIPANTS: 472 rugby playing youths aged 15 years (Regional Assessment Centres) and 382 schoolboys aged between 12 and 18 years (three schools). OUTCOME MEASURES: Height, weight and grip strength. RESULTS: 97% of 15-year-olds achieved the height and grip strength thresholds based on previous reported values. Larger mean values and wide variation of height, weight and grip strength were recorded in the schoolboy cohort. However, using the mean values of the cohort of 17-year-olds as a new threshold, only 7.7% of 15-year-olds would pass these thresholds. CONCLUSIONS: Large morphological variation was observed in schoolboy rugby players of the same age. Physical maturity tests described in earlier literature as pre-participation screening for contact sports were not applicable to current day 15-year-old rugby players. New criteria were measured and found to be better at identifying those 15-year-old players who had sufficient physical development to play senior school rugby.

19.
J Orthop Trauma ; 25(4): 228-32, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21399473

RESUMO

OBJECTIVES: Posttraumatic psychopathology may complicate recovery from musculoskeletal injury. This article details the 5-year follow-up of a cohort study examining the relationship between posttraumatic psychopathology and recovery after musculoskeletal trauma. DESIGN: A prospective cohort study of patients with musculoskeletal injuries (Grampian Trauma Outcomes Study) assessed 5 years after their injury. SETTING: Orthopaedic trauma unit, Level I equivalent. PATIENTS: One hundred four of the initial group of 200 patients with musculoskeletal injuries. INTERVENTION: Trauma care and prospective evaluation of physical and psychologic recovery. MAIN OUTCOME MEASURES: Development of psychopathology (measured by the General Health Questionnaire [GHQ]) and functional outcome (measured by Short Form-36 [SF-36] and Musculoskeletal Function Assessment [MFA]). RESULTS: Follow-up at 5 years was 104 patients (52%). GHQ caseness was predictive of physical dysfunction (SF-36, MFA), which had not returned to baseline levels by 5 years. Although injury severity was strongly predictive of psychological disturbance (GHQ caseness) at 5 years, linear regression analysis demonstrated that GHQ score was an important predictor of outcome, whereas Injury Severity Score contributed very little. CONCLUSIONS: Psychologic disturbance after musculoskeletal trauma is related to adverse functional outcome. This is not influenced by preinjury state, but constitutes a sustained posttraumatic effect that is only weakly related to severity of injury.


Assuntos
Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Sistema Musculoesquelético/lesões , Qualidade de Vida , Recuperação de Função Fisiológica , Ferimentos e Lesões/epidemiologia , Ferimentos e Lesões/psicologia , Atividades Cotidianas , Adolescente , Adulto , Idoso , Comorbidade , Feminino , Seguimentos , Humanos , Incidência , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos , Estados Unidos/epidemiologia
20.
J Trauma ; 61(6): 1408-14, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17159684

RESUMO

BACKGROUND: Posttraumatic psychopathology (PTP) is important to the orthopedic surgeon because it appears to be much more common than might have been suspected and may complicate the recovery from musculoskeletal injury. We have investigated the relationship between physical and psychological recovery in victims of musculoskeletal trauma. METHODS: A prospective cohort of 200 patients with musculoskeletal injuries were studied, correlating development of psychopathology (measured by the General Health Questionnaire) and functional outcome (measured by Short Form-36, Sickness Impact Profile, and Musculoskeletal Function Assessment) 2 and 6 months after their injuries. RESULTS: Pre-existing psychological disturbance was found in 11% of our patients; this figure rose to 46% of patients at 2 months but fell to 22% at 6 months. The posttraumatic disturbance correlated strongly with impaired functional outcome as measured by all three outcomes measures (total and category scores) (p < 0.05). CONCLUSIONS: The strong correlation of PTP with impaired functional outcome after musculoskeletal trauma stresses that it is a significant problem. Further research is required to determine whether an approach that combines physical and psychological treatment can improve patient outcomes.


Assuntos
Transtornos Mentais/etiologia , Sistema Musculoesquelético/lesões , Recuperação de Função Fisiológica/fisiologia , Ferimentos e Lesões/fisiopatologia , Ferimentos e Lesões/psicologia , Adolescente , Adulto , Idoso , Feminino , Seguimentos , Humanos , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos
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