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BACKGROUND: Hip and knee arthritis are two of the most common conditions that result in referral to orthopaedic outpatient clinics. Many patients now use the internet to research their condition and to inform their decision about treatment options. This has implications for the process of informed consent. AIM: To assess the quality of patient information on the internet regarding hip and knee arthritis. METHODS: 'Hip arthritis' and 'Knee arthritis' were entered as search terms into a popular search engine. To adjust for temporal variation, the process was repeated one month and one year later. Of the 200 results analysed, 83 websites met the inclusion criteria. The quality of patient information presented on these websites was assessed using a validated scoring instrument by two independent observers. RESULTS: Most websites assessed were of poor quality; nearly half of all websites did not mention any risks or complications associated with surgical intervention for these conditions. CONCLUSIONS: As part of their professional obligation to provide a robust process of informed consent, clinicians should be aware of the variable quality of patient information available on the internet. As such, they should be prepared to advise their patients about quality websites where reliable information can be sought.
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Osteoartrite do Quadril , Osteoartrite do Joelho , Humanos , Osteoartrite do Joelho/cirurgia , Osteoartrite do Quadril/cirurgia , Ferramenta de Busca , Inquéritos e Questionários , InternetRESUMO
INTRODUCTION: Methoxyflurane is an historical anaesthetic agent that has undergone a renaissance with the introduction of a smaller dose in a handheld 'Penthrox' device. The benefits of Penthrox include its ease of use, with disposable individual packets, and the need for less monitoring and staff, when compared with deeper sedation. The literature acknowledges its use for analgesia and in the management of anterior shoulder dislocation but in no other procedural orthopaedic circumstance. METHODS: Following institutional approval, we undertook a retrospective review of all incidences of Penthrox use to facilitate minor procedures within a 2-month period starting 24 March 2020. Time to procedure and success were recorded using the surrogate markers of patient attendance and x-Ray occurrence times. RESULTS: Some 101 Penthrox doses were given to 89 patients over 97 unique episodes between 24 March and 26 May 2020. No complications were recorded following the use of Penthrox during this period. Patient demographics were explored. Fracture manipulations and casting (n=54) had a 100% success rate in achieving adequate and safe reduction. Joint dislocations (n=34) were treated with varying success. Native elbow dislocations were reduced most successfully (4/4, 100%). Native shoulder dislocations were seen in 17 patients and successful relocation was seen in 11 cases, giving a success rate of 65%. CONCLUSIONS: This is the first study, outside anterior shoulder dislocations, to report on the efficacy of Penthrox within emergent orthopaedic scenarios. We have demonstrated Penthrox to be a safe tool for helping to manage trauma procedures in the emergency department.
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Anestésicos Inalatórios , Fraturas Ósseas , Luxações Articulares , Metoxiflurano , Metoxiflurano/administração & dosagem , Metoxiflurano/uso terapêutico , COVID-19 , Pandemias , Anestésicos Inalatórios/uso terapêutico , Nebulizadores e Vaporizadores , Fraturas Ósseas/diagnóstico por imagem , Fraturas Ósseas/tratamento farmacológico , Luxações Articulares/diagnóstico por imagem , Luxações Articulares/tratamento farmacológico , Ferimentos e Lesões/diagnóstico por imagem , Ferimentos e Lesões/tratamento farmacológico , Estudos Retrospectivos , Resultado do Tratamento , Raios X , Alta do Paciente/estatística & dados numéricos , Humanos , Masculino , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Reino UnidoRESUMO
INTRODUCTION: Trauma patients are often required to make an informed decision about surgery within a short space of time. Coming to terms with their injury may mean they have limited bandwidth for absorbing information, and it may be that they don't appreciate the risks and benefits of surgery discussed during consent. Current consent practice puts the emphasis on the clinician to ensure that all reasonable steps have been taken to explain risks and benefits to patients. We propose the use of video animations that patients can watch prior to surgery as a means of improving their understanding and overall experience. METHODS: The video script was written and evaluated so that a high standard was achieved using the "Discern" instrument. The experiences of a focus group of 5 patients were used to guide script content. Using GoAnimate (GoAnimate Inc., San Mateo) a video was made with voice over provided by local drama students. The video was shown to 30 consecutive patients over a 2 month period. We included any patient with an ankle fracture managed operatively who had been consented (form 1). Evaluation consisted of interview with patients consisting of 2 focussed questions and one open. Responses to the questions were collated and grouped into positive and negative descriptors. RESULTS: 68 (81%) positive descriptors were recorded from patients' interviews versus 16 (19%) negative. Positive descriptors related to improved retention, information giving, technical detail, consolidations of information given during consent. Negatives were caveats that video couldn't replace face-to-face consent, the degree of detail being off-putting and not adding anything to standard consent. CONCLUSION: The video was well received by patients with subjective improvements being made to their understanding, retention and sharing of technical detail. The face-to-face discussion between patient and doctor remains very important to them and the video should look to augment this.
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Consentimento Livre e Esclarecido , HumanosRESUMO
INTRODUCTION We present a novel solution to ensure that information and contact details are always available to patients while in cast. An information sticker containing both telephone numbers and a Quick Response (QR) code is applied to the cast. When scanned with a smartphone, the QR code loads the plaster team's webpage. This contains information and videos about cast care, complications and enhancing recovery. METHODS A sticker was designed and applied to all synthetic casts fitted in our fracture clinic. On cast removal, patients completed a questionnaire about the sticker. A total of 101 patients were surveyed between November 2015 and February 2016. The questionnaire comprised ten binary choice questions. RESULTS The vast majority (97%) of patients had the sticker still on their cast when they returned to clinic for cast removal. Eighty-four per cent of all patients felt reassured by the presence of the QR code sticker. Nine per cent used the contact details on the cast to seek advice. Over half (56%) had a smartphone and a third (33%) of these scanned the QR code. Of those who scanned the code, 95% found the information useful. CONCLUSIONS This study indicates that use of a QR code reassures patients and is an effective tool in the proactive management of potential cast problems. The QR code sticker is now applied to all casts across our trust. In line with NHS England's Five Year Forward View calling for enhanced use of smartphone technology, our trust is continuing to expand its portfolio of patient information accessible via QR codes. Other branches of medicine may benefit from incorporating QR codes as portals to access such information.
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Moldes Cirúrgicos/estatística & dados numéricos , Sistemas de Identificação de Pacientes/métodos , Sistemas de Identificação de Pacientes/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto JovemRESUMO
Introduction Approximately 67,000 hip fractures occurred in England, Wales and Northern Ireland in 2014, and annual hospital costs for fracture are around £1.1 billion. We review the potential scope for improving length of stay (LOS). Methods Hospital Episode Statistics data on non-elective admissions to 137 hospital trusts between November 2013 and October 2015 with a primary diagnosis of fractured neck of femur were analysed. The primary outcome was superspell LOS, which is the total LOS for all related spells for a single patient during an episode of care. Secondary outcomes were discharge to home, readmission at 28 days and in-hospital mortality. Results The mean observed LOS was 22.1±3.8 days (range 12.3-33.7 days). The range for case mix-adjusted expected LOS was 21.5-24.4 days. On average, 6.7±1.5% (range 3.6%-10.9%) of patients died while in hospital, at a relative risk of in-hospital mortality of 28.2-182.9. A mean of 12.3±3.2% (range 3.9% to 23.0%) of patients were readmitted at 28 days, at a relative relative risk of 34.8-203.2. Conclusions The wide range of observed LOS in our study is unlikely to be due to the case mix, as the case mix-adjusted range of LOS is less than 3 days, but rather due to local processes and pathways. There is therefore considerable scope for quality and efficiency of care improvements in our hospitals. We propose this could be best achieved if clinicians experienced in enhanced recovery focused on FNOF pathways.
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Fraturas do Colo Femoral/cirurgia , Melhoria de Qualidade , Grupos Diagnósticos Relacionados , Fraturas do Colo Femoral/mortalidade , Mortalidade Hospitalar , Humanos , Tempo de Internação , Qualidade da Assistência à Saúde , Estudos RetrospectivosRESUMO
Management of the mobile elderly patient who sustains an intra-capsular neck of femur fracture remains controversial. Current evidence is mixed as to whether total hip arthroplasty (THA), which confers higher surgical and dislocation risk, is significantly superior in function and in reduced rates of reoperation when compared to bipolar hemi-arthroplasty. A group of 110 patients with an intra-capsular NOF fracture who had undergone either THA or Bipolar hemi-arthroplasty and were still alive at the time of follow up were retrospectively identified and matched using the National Hip Fracture Database. Matching criteria included ASA, age, sex, pre-op mobility, pre-op AMTS and source of admission. Follow up was by postal questionnaire. Mean follow up was 24 months in both groups (Range; Bipolar 12-36 months, THA 12-38 months). There was no significant difference in pre-operative Tonnis grade, postoperative Oxford Hip Score (OHS) or Short Form 36 (SF-36) scores between the two groups. 12 dislocations in 5 patients occurred in the THA group and none in the bipolar group. 33/55 Bipolar patients were discharged to their own home compared to 35/55 in the THA group. None of the bipolar hemi-arthroplasties were revised to THA. Higher complication rates were experienced in the THA group with no increase in function.
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Artroplastia de Quadril , Fraturas do Colo Femoral/cirurgia , Hemiartroplastia , Luxação do Quadril/cirurgia , Complicações Pós-Operatórias/cirurgia , Reoperação/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Artroplastia de Quadril/instrumentação , Artroplastia de Quadril/métodos , Estudos de Casos e Controles , Feminino , Fraturas do Colo Femoral/mortalidade , Seguimentos , Hemiartroplastia/instrumentação , Hemiartroplastia/métodos , Luxação do Quadril/mortalidade , Humanos , Masculino , Complicações Pós-Operatórias/mortalidade , Resultado do TratamentoRESUMO
INTRODUCTION: Dislocation following total hip replacement continues to be a problem for which no completely satisfactory solution has been found. Several methods have been proposed to reduce the incidence of hip dislocations with varying degrees of success, including elevated rim liners, constrained liners and large diameter bearings. We present our experience with the double mobility acetabular component in patients at high risk of instability. METHODS: This was a retrospective review of 65 primary total hip arthroplasties in 55 patients (15 men, 40 women), performed between October 2005 and November 2009. The majority (80%) of patients had at least two and 26% had at least three risk factors for instability. The mean age was 76 years (range: 44-92 years). The patients were followed up for a mean duration of 60 months (range: 36-85 months). RESULTS: Fourteen patients died and one was lost to follow-up, leaving fifty hips for final assessment. Until the final follow-up appointment, no patients had dislocation and none required revision surgery. The mean Oxford hip score improved from 45.0 to 26.5 (p<0.0001). The mean Merle d'Aubigné pain score improved from 1.4 to 4.9 (p<0.0001), the walking score from 2.3 to 3.1 (p<0.07) and the absolute hip function score from 5.4 to 10.8 (p<0.0001). There were no clinical or radiographic signs of loosening. CONCLUSIONS: The double mobility acetabular component was successful at preventing dislocation during early to medium-term follow-up. However, as data are still lacking with regard to polyethylene wear rates at the additional bearing surface, it would be prudent to restrict the use of this implant to selected patients at high risk of instability.
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Artroplastia de Quadril/métodos , Luxação do Quadril/etiologia , Prótese de Quadril , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Estudos Retrospectivos , Fatores de Risco , Resultado do TratamentoRESUMO
We aimed to determine whether cemented hemiarthroplasty is associated with a higher post-operative mortality and rate of re-operation when compared with uncemented hemiarthroplasty. Data on 19 669 patients, who were treated with a hemiarthroplasty following a fracture of the hip in a nine-year period from 2002 to 2011, were extracted from NHS Scotland's acute admission database (Scottish Morbidity Record, SMR01). We investigated the rate of mortality at day 0, 1, 7, 30, 120 and one-year post-operatively using 12 case-mix variables to determine the independent effect of the method of fixation. At day 0, those with a cemented hemiarthroplasty had a higher rate of mortality (p < 0.001) compared with those with an uncemented hemiarthroplasty, equivalent to one extra death per 424 procedures. By day one this had become one extra death per 338 procedures. Increasing age and the five-year co-morbidity score were noted as independent risk factors. By day seven, the cumulative rate of mortality was less for cemented hemiarthroplasty though this did not reach significance until day 120. The rate of re-operation was significantly higher for uncemented hemiarthroplasty. Despite adjusting for 12 confounding variables, these only accounted for 15% of the observed variability. The debate about the choice of the method of fixation for a hemiarthroplasty with respect to the rate of mortality or the risk of re-operation may be largely superfluous. Our results suggest that uncemented hemiarthroplasties may have a role to play in elderly patients with significant co-morbid disease.
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Artroplastia de Quadril/mortalidade , Cimentos Ósseos , Hemiartroplastia/mortalidade , Fraturas do Quadril/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Artroplastia de Quadril/instrumentação , Artroplastia de Quadril/métodos , Feminino , Hemiartroplastia/instrumentação , Hemiartroplastia/métodos , Fraturas do Quadril/mortalidade , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Resultado do TratamentoRESUMO
INTRODUCTION: Fifth metatarsal fractures are common and the outcome has been reported; however, prospective studies reporting the functional outcome using validated questionnaires are lacking in the literature. The aims of this study were to determine whether fifth metatarsal fractures remain symptomatic in the medium term and whether the fracture type influences outcome. METHODS: Over the course of a year, 117 patients (62 avulsion fractures, 26 Jones fractures, 29 shaft fractures) were followed up (1 month, 4 months, 12 months), with functional outcome assessed using the Foot Function Index (FFI)- and Short Form 36 (SF36)-validated questionnaires. RESULTS: The FFI reduced (function improved) over the course of the year from 22.0 (8.4-38.5) at 1 month to 0.0 (0.0-4.2) at 4 months, to 0.0 (0.0-1.3) at 1 year. There was no significant difference in the FFI scores with regard to gender or fracture type. Pain scores were also observed to decline over the year, with no significant differences between fracture types. However, while the severity of pain was low, the numbers of people reporting pain were relatively high. At 1 month, >80% of patients reported ongoing pain (83% avulsion, 88% Jones and 83% shaft), reducing to 38% at 4 months and 28% at 1 year. At final follow-up, 25% with an avulsion fracture, 28% with a Jones fracture and 33% with a shaft fracture reported pain. CONCLUSIONS: While 25-33% of patients continue to experience pain at 1 year, <10% experience any limitation of their activities. At the final follow-up at 1 year, there were no significant differences in functional outcome by fracture type, gender or patient age. Patients should be advised about the likelihood of ongoing low-level symptoms, even after a year from injury in this previously presumed innocuous injury.
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Traumatismos do Pé/fisiopatologia , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/fisiopatologia , Ossos do Metatarso/lesões , Seguimentos , Traumatismos do Pé/diagnóstico por imagem , Consolidação da Fratura , Fraturas Ósseas/diagnóstico por imagem , Humanos , Ossos do Metatarso/diagnóstico por imagem , Ossos do Metatarso/fisiopatologia , Radiografia , Fatores de Tempo , Índices de Gravidade do Trauma , Reino Unido/epidemiologiaRESUMO
INTRODUCTION: Orthopaedic enhanced recovery after surgery (ERAS) providers are encouraged to estimate the actual benefit of ERAS according to the patient's opinion by using patient generated data alongside traditional measures such as length of stay. The aim of this paper was to systemically review the literature on the use of patient generated information in orthopaedic ERAS across the whole perioperative pathway. METHODS: Publications were identified using Embase(™), MEDLINE(®), AMED, CINAHL(®) (Cumulative Index to Nursing and Allied Health Literature), the Cochrane Library and the British Nursing Index. Search terms related to experiences, acceptance, satisfaction or perception of ERAS and quality of life (QoL). FINDINGS: Of the 596 abstracts found, 8 papers were identified that met the inclusion criteria. A total of 2,208 patients undergoing elective hip and knee arthroplasty were included. Patient satisfaction was reported in 6 papers. Scores were high in all patients and not adversely affected by length of stay. QoL was reported in 2 papers and showed that QoL scores continued to increase up to 12 months following ERAS. Qualitative methods were used in one study, which highlighted problems with support following discharge. There is a paucity of data reporting on patient experience in orthopaedic ERAS. However, ERAS does not compromise patient satisfaction or QoL after elective hip or knee surgery. The measurement of patient experience should be standardised with further research.
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Artroplastia de Quadril/reabilitação , Artroplastia do Joelho/reabilitação , Artroplastia de Quadril/psicologia , Artroplastia do Joelho/psicologia , Dinamarca , Humanos , Tempo de Internação , Avaliação de Resultados da Assistência ao Paciente , Satisfação do Paciente , Cuidados Pós-Operatórios/reabilitação , Qualidade de Vida , Reino UnidoRESUMO
Osteoporosis is common and the health and financial cost of fragility fractures is considerable. The burden of cardiovascular disease has been reduced dramatically by identifying and targeting those most at risk. A similar approach is potentially possible in the context of fragility fractures. The World Health Organization created and endorsed the use of FRAX, a fracture risk assessment tool, which uses selected risk factors to calculate a quantitative, patient-specific, ten-year risk of sustaining a fragility fracture. Treatment can thus be based on this as well as on measured bone mineral density. It may also be used to determine at-risk individuals, who should undergo bone densitometry. FRAX has been incorporated into the national osteoporosis guidelines of countries in the Americas, Europe, the Far East and Australasia. The United Kingdom National Institute for Health and Clinical Excellence also advocates its use in their guidance on the assessment of the risk of fragility fracture, and it may become an important tool to combat the health challenges posed by fragility fractures.
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Fraturas Espontâneas/epidemiologia , Osteoporose/complicações , Osteoporose/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Feminino , Fraturas Espontâneas/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Osteoporose/diagnóstico , Medição de Risco , Fatores de RiscoRESUMO
INTRODUCTION: Minimally invasive hip and knee replacement surgery (MIS) continues to receive coverage in both the popular press and scientific literature. The cited benefits include a smaller scar, less soft tissue trauma, faster recovery, reduced hospital stay, decreased blood loss and reduced post-operative pain. These outcomes are highly desirable and consistent with the aims of fast track hip and knee pathways. This paper evaluates the literature and discusses whether performing MIS over conventional surgical techniques offers advantages in a fast track hip and knee pathway. METHODS: An English language literature search was performed using the MEDLINE and PubMed databases. Case series, randomised controlled trials and systematic reviews were included in the review. RESULTS: The reported improvements in recovery brought about by MIS must be considered multifactorial. In combination with improved clinical pathways, MIS can be associated with quicker recovery and shorter length of hospital stay. CONCLUSIONS: There is insufficient evidence to indicate that surgical technique alone makes a significant difference to recovery or reduces soft tissue trauma. No consensus on whether to use MIS techniques in fast track hip and knee replacement pathways can therefore be drawn. This is especially important given that the complication rates of MIS in the low to medium volume surgeon appear unacceptably high compared with standard approaches. It is also too early to assess the long-term effects of MIS on implant survival.
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Artroplastia de Quadril/métodos , Artroplastia do Joelho/métodos , Artroscopia/métodos , Artroplastia de Quadril/tendências , Artroplastia do Joelho/tendências , Artroscopia/tendências , Humanos , Complicações Intraoperatórias/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como Assunto , Literatura de Revisão como Assunto , Falha de TratamentoRESUMO
We present our experience with a double-mobility acetabular component in 155 consecutive revision total hip replacements in 149 patients undertaken between 2005 and 2009, with particular emphasis on the incidence of further dislocation. The mean age of the patients was 77 years (42 to 89) with 59 males and 90 females. In all, five patients died and seven were lost to follow-up. Indications for revision were aseptic loosening in 113 hips, recurrent instability in 29, peri-prosthetic fracture in 11 and sepsis in two. The mean follow-up was 42 months (18 to 68). Three hips (2%) in three patients dislocated within six weeks of surgery; one of these dislocated again after one year. All three were managed successfully with closed reduction. Two of the three dislocations occurred in patients who had undergone revision for recurrent dislocation. All three were found at revision to have abductor deficiency. There were no dislocations in those revised for either aseptic loosening or sepsis. These results demonstrate a good mid-term outcome for this component. In the 29 patients revised for instability, only two had a further dislocation, both of which were managed by closed reduction.
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Artroplastia de Quadril/métodos , Prótese de Quadril , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Articulação do Quadril/diagnóstico por imagem , Humanos , Instabilidade Articular/etiologia , Instabilidade Articular/cirurgia , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Falha de Prótese , Radiografia , Recidiva , Reoperação/instrumentação , Reoperação/métodos , Estudos Retrospectivos , Resultado do TratamentoRESUMO
Radiological imaging is necessary in a wide variety of trauma and elective orthopaedic operations. The evolving orthopaedic workforce includes an increasing number of pregnant workers. Current legislation in the United Kingdom, Europe and United States allows them to choose their degree of participation, if any, with fluoroscopic procedures. For those who wish to engage in radiation-prone procedures, specific regulations apply to limit the radiation dose to the pregnant worker and unborn child. This paper considers those aspects of radiation protection, the potential effects of exposure to radiation in pregnancy and the dose of radiation from common orthopaedic procedures, which are important for safe clinical practice.
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Pessoal de Saúde , Exposição Materna/prevenção & controle , Exposição Ocupacional/análise , Procedimentos Ortopédicos , Feminino , Feto/efeitos da radiação , Humanos , Concentração Máxima Permitida , Exposição Ocupacional/prevenção & controle , Gravidez , Doses de Radiação , Monitoramento de Radiação/métodos , Proteção Radiológica/métodosRESUMO
BACKGROUND: With a lack of data from randomized trials, the optimal management of men with nonmetastatic prostate carcinoma is controversial. The authors sought to define the outcomes of three common strategies for managing patients with nonmetastatic prostate carcinoma: expectant management, radiotherapy, and radical prostatectomy. METHODS: The authors conducted a retrospective cohort study with standardized collection of key prognostic data, including centralized assignment of Gleason grades from original biopsy specimens. Participants included all Connecticut hospitals (the expectant management cohort) and three academic medical centers in other states (the radiotherapy and surgery cohorts). Two thousand three hundred eleven consecutive men ages 55-74 years who were diagnosed during 1971-1984 with nonmetastatic prostate carcinoma and were treated at the participating sites were included. RESULTS: Kaplan-Meier estimates with 95% confidence intervals (95% CI) of overall survival at 10 years for each cohort were as follows: expectant management cohort, 42% of patients (95% CI, 38-46%); radiotherapy cohort, 52% of patients (95% CI, 46-58%); and radical prostatectomy cohort, 69% of patients (95% CI, 67-71%); for disease specific mortality, the estimates were as follows: expectant management cohort, 75% of patients (95% CI, 71-79%); radiotherapy cohort, 67% of patients (95% CI, 61-73%); and radical prostatectomy cohort, 86% of patients (95% CI, 84-88%). There were large differences in distributions of important prognostic factors among men in the different treatment groups. CONCLUSIONS: These data provide precise estimates of the outcomes of patients who have been treated with different modalities for nonmetastatic prostate carcinoma in the recent past. Direct comparisons of outcomes between treatment groups are inadvisable because of the different characteristics of patients who select these alternative management strategies.
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Neoplasias da Próstata/terapia , Idoso , Estudos de Coortes , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Prostatectomia , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/radioterapia , Neoplasias da Próstata/cirurgia , Estudos Retrospectivos , Taxa de SobrevidaRESUMO
Both benign prostatic hyperplasia and prostate-specific antigen (PSA) have been shown to increase with age and with prostate volume in men, but the influence of heredity on these relationships is not completely understood. This study has two aims: 1) to investigate the inter-relationships of age, PSA, and various zonal measurements in the prostate; and 2) to assess the impact of heritable influences on total PSA. Eighty-four monozygotic twin pairs and 83 dizygotic twin pairs were studied, and serum total PSA, free PSA, and PSA-alpha1-antichymotrypsin were measured. Their prostate volumes [total (TV), transition zone (TZ), and peripheral zone) were quantitated using transrectal ultrasound. Total PSA is significantly correlated with all zonal prostate measurements (TZ, peripheral zone, TV, and TZ/TV) and with age. When linear regression was applied, only age and TZ were retained in the final model. The proportion of variability in total PSA explained by these two factors, however, is below 24%. In contrast, estimates of heritability show that approximately 45% of the variability in total PSA can be explained by inherited factors. Whereas age and TZ are linearly related to total PSA, their influence is much less than that of familial and genetic factors. It is uncertain whether these factors predispose also to prostate cancer or if they are independent of those, whether they confound the accuracy of using total serum PSA level as a diagnostic tool.
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Envelhecimento/fisiologia , Antígeno Prostático Específico/genética , Próstata/anatomia & histologia , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Próstata/diagnóstico por imagem , Antígeno Prostático Específico/biossíntese , Análise de Regressão , UltrassonografiaRESUMO
PURPOSE: The American Urological Association Prostate Cancer Clinical Guidelines Panel reviewed 12,501 publications on prostate cancer from 1955 to 1992 to determine whether the complication rates of external beam radiation therapy, interstitial radiotherapy and radical prostatectomy have decreased. MATERIALS AND METHODS: Complications reported in at least 6 series, study duration and sample sizes were extracted. Year specific study weighted mean patient ages and complication rates were computed. Regression analysis was performed of the study year on weighted mean patient age and complication rate. RESULTS: Study year had a significant effect on mean patient age and rate of the majority of complications examined. Data indicated a gradual increase in study patient age and a simultaneous decrease in complications from 1960 to 1990. CONCLUSIONS: Complication rates in the treatment of localized prostate cancer have decreased during the last 20 to 40 years. This decrease occurred despite evidence that the average age of treated patients had increased during the same period.
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Prostatectomia/efeitos adversos , Neoplasias da Próstata/radioterapia , Neoplasias da Próstata/cirurgia , Lesões por Radiação/epidemiologia , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologiaRESUMO
OBJECTIVES: Both benign prostatic hyperplasia and lower urinary tract symptoms (LUTS) have been shown to increase with age in men, but a causal relationship between prostate volume and symptoms has not been established. This study had two aims, to investigate the inter-relationships of age, symptoms, and various zonal measurements in the prostate and to assess the impact of heritable influences on symptom score. METHODS: Eighty-three monozygotic twin pairs and 83 dizygotic twin pairs were studied to determine age and LUTS as assessed by the American Urological Association symptom score. Their prostate volumes (total, transition zone, and peripheral zone) were measured by transrectal ultrasound. RESULTS: There was significant evidence of pairwise correlation between transition zone and symptom score (P = 0.04) and between age and symptom score (P = 0.03). Age also showed significant correlation with all volume measurements. Heritability appears to account for 82.6% of the variability in symptom score in men older than 50 years. CONCLUSIONS: This study provides evidence that age and transition zone volume play a role in LUTS, but also that their influence is not strong. Estimates of heritability suggest that hereditary factors contribute substantially to LUTS.
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Hiperplasia Prostática/complicações , Hiperplasia Prostática/diagnóstico , Hiperplasia Prostática/genética , Transtornos Urinários/genética , Adulto , Fatores Etários , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Próstata/patologia , Índice de Gravidade de Doença , Transtornos Urinários/etiologiaRESUMO
We have compared prospectively the incidence of loosening of 20 femoral stems with a matt surface with that of 20 polished stems of an otherwise identical tapered, non-modular design of Exeter hip replacement. The stems were inserted using the same technique at operation and radiographs showed no difference in the adequacy of the cement mantle or of fixation. All the patients were reviewed regularly and none was lost to follow-up. After a minimum follow-up of nine years, four matt but no polished stems had been revised for aseptic loosening. Polished stems subsided slightly within the cement mantle early, but did not loosen.
Assuntos
Cimentação , Fêmur , Prótese de Quadril , Desenho de Prótese , Falha de Prótese , Acetábulo/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Ligas/química , Artrite Reumatoide/cirurgia , Artroplastia de Quadril , Feminino , Fraturas do Colo Femoral/cirurgia , Fêmur/diagnóstico por imagem , Fêmur/cirurgia , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Osteoartrite/cirurgia , Estudos Prospectivos , Radiografia , Reoperação , Propriedades de SuperfícieRESUMO
The effects of matte finish and modularity on loosening of tapered stems using the same cementing technique were studied prospectively. In 80 patients, 82 cemented Exeter primary stems were implanted at total hip revision by one surgeon using the same surgical and cementing technique throughout the series. The polished stems behaved differently than the matte surfaced stems behaved. Polished stems subsided in the cement mantle an average of 1 mm at 2 years after implantation, but without subsequent loosening of stems at as long as 12 years after implantation. Matte surfaced stems with metal centralizers had a higher loosening rate, and loss of fixation at the prosthesis to cement interface was identified as an early sign of loosening of these stems. At a mean 6-year followup, there were no revisions nor was there radiographic evidence of loosening of the polished modular stems. It is concluded that matte finish results in increased loosening of tapered stems but the introduction of modularity did not.