Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 101
Filtrar
Más filtros

Bases de datos
Tipo del documento
Intervalo de año de publicación
1.
Artículo en Inglés | MEDLINE | ID: mdl-37470791

RESUMEN

BACKGROUND: Musculoskeletal conditions are the leading cause of disability worldwide and disproportionally affect individuals in low-income and middle-income countries. There is a dearth of evidence on musculoskeletal problems among refugees, 74% of whom reside in low-income and middle-income countries. QUESTIONS/PURPOSES: (1) What proportion of refugees in Nyarugusu Camp, Kigoma, western Tanzania, are affected by musculoskeletal problems and what are the characteristics of those individuals? (2) What are the characteristics of these musculoskeletal problems, including their causes, location, and duration? (3) What forms of healthcare do those with musculoskeletal problems seek, including those for both musculoskeletal and nonmusculoskeletal problems? METHODS: We conducted a cross-sectional study among refugees in Nyarugusu Camp, using the Surgeons OverSeas Assessment of Surgical Need tool. The Surgeons OverSeas Assessment of Surgical Need tool is a validated population-based survey tool developed for use in limited-resource settings that is intended to determine the prevalence of surgical disease in a community. It uses a cluster random sampling methodology with house-to-house data collection in the form of a verbal head-to-toe examination that is performed by a trained community healthcare worker. A total of 99% responded, and 3574 records were analyzed. The mean age of respondents was 23 ± 18 years, with under 18 as the most-represented age group (44% [1563]). A total of 57% (2026) of respondents were women, 79% (2802 of 3536) were generally healthy, and 92% (3297 of 3570) had visited a camp medical facility. Only records endorsing musculoskeletal problems (extremity or back) were included in this analysis. Using all refugees surveyed as our denominator and refugees who endorsed a musculoskeletal problem (extremity or back) as the numerator, we calculated the proportion of refugees who endorsed a musculoskeletal problem. We then analyzed the characteristics of those endorsing musculoskeletal problems, including their healthcare-seeking behavior, and the characteristics of the musculoskeletal problems themselves. RESULTS: Among 3574 refugees interviewed, 22% (769) reported musculoskeletal problems, with 17% (609) reporting extremity problems and 7% (266) reporting back problems. Among all people surveyed, 8% (290) reported current extremity problems while 5% (188) reported current back problems. Among those reporting musculoskeletal problems, respondents younger than 18 years were the most-represented age group (28% [169 of 609]) whereas respondents between 30 and 44 years of age were the most-represented age group for back problems (29% [76 of 266]). Wounds from an injury or trauma (24% [133 of 557]) and acquired disability (24% [133 of 557]) were the most-common causes of extremity problems, whereas acquired disability (53% [97 of 184]) followed by a wound not from injury or trauma (25% [45 of 184]) were the most common causes of back problems. Fifty percent (303) of those with extremity problems characterized it as disabling, whereas 76% (203) of those with back problems did. CONCLUSION: Over one of five refugees endorsed musculoskeletal problems, which are most often caused by acquired disease and injury. These musculoskeletal problems are often characterized as disabling, yet only slightly more than half have sought treatment for problems. This warrants further research on care-seeking behavior in this setting, and emphasizes that investing in the spectrum of musculoskeletal health systems, including medical management and rehabilitation services, is critical to decreasing disability caused by musculoskeletal problems. LEVEL OF EVIDENCE: Level IV, prognostic study.

2.
J Surg Orthop Adv ; 32(3): 187-192, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38252607

RESUMEN

Outcomes of the Surgical Implant Generation Network (SIGN) nail have been reported for femur and tibial fractures, but its use in tibiotalocalcaneal arthrodesis (TTCA) is not well studied. Radiographic and clinical outcomes of TTCA using the SIGN database in patients with > 6 months of radiographic follow up were analyzed. Rates of tibiotalar (TT) fusion and subtalar (ST) fusion at final follow up were assessed by two independent reviewers. Of the 62 patients identified, use of the SIGN nail for TCCA resulted in 53% rate of fusion in the TT joint and 20% in the ST joint. Thirty-seven patients (60%) demonstrated painless weight bearing at final follow up. There were no differences in incidence of painless weight bearing between consensus fused and not fused cohorts for TT and ST joints (p > 0.05). There were five implant failures, no cases of infection, and seven cases of reoperation. (Journal of Surgical Orthopaedic Advances 32(3):187-192, 2023).


Asunto(s)
Países en Desarrollo , Ortopedia , Tiazolidinas , Humanos , Reoperación , Artrodesis
3.
J Foot Ankle Surg ; 2023 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-37595678

RESUMEN

Total ankle arthroplasty is increasingly being used for the treatment of ankle osteoarthritis when compared to arthrodesis. However, there has been limited investigation into disparities in utilization of these comparable procedures. This study examined racial/ethnic, socioeconomic, and payer status disparities in the likelihood of undergoing total ankle arthroplasty compared with ankle arthrodesis. Patients with a diagnosis of ankle osteoarthritis from 2006 through 2019 were identified in the National Inpatient Sample, then subclassified as undergoing total ankle arthroplasty or arthrodesis. Multivariable logistic regression models, adjusted for hospital location, primary or secondary osteoarthritis diagnosis, and patient characteristics (age, sex, infection, and Elixhauser comorbidities), were used to examine the effect of race/ethnicity, socioeconomic status, and payer status on the likelihood of undergoing total ankle arthroplasty versus arthrodesis. Black and Asian patients were 34% and 41% less likely than White patients to undergo total ankle arthroplasty rather than arthrodesis (p < .001). Patients in income quartiles 3 and 4 were 22% and 32% more likely, respectively, than patients in quartile 1 to undergo total ankle arthroplasty rather than arthrodesis (p = .001 and p = .01, respectively). In patients <65 years of age, privately insured and Medicare patients were 84% and 37% more likely, respectively, than Medicaid patients to undergo total ankle arthroplasty rather than arthrodesis (p < .001). Racial/ethnic, socioeconomic, and payer status disparities exist in the likelihood of undergoing total ankle arthroplasty versus arthrodesis for ankle osteoarthritis. More work is needed to establish drivers of these disparities and identify targets for intervention, including improvements in parity in relative procedure utilization.

4.
J Surg Res ; 268: 389-393, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34403856

RESUMEN

BACKGROUND: The COVID-19 pandemic led to large-scale cancellation and deferral of elective surgeries. We quantified volume declines, and subsequent recoveries, across all hospitals in Maryland. MATERIALS AND METHODS: Data on elective inpatient surgical volumes were assembled from the Maryland Health Service Cost Review Commission for years 2019-2020. The data covered all hospitals in the state. We compared the volume of elective inpatient surgeries in the second (Q2) and fourth quarters (Q4) of 2020 to those same quarters in 2019. Analysis was stratified by patient, hospital, and service characteristics. RESULTS: Surgical volumes were 55.8% lower in 2020 Q2 than in 2019 Q2. Differences were largest for orthopedic surgeries (74.3% decline), those on Medicare (61.4%), and in urban hospitals (57.3%). By 2020 Q4, volumes for most service lines were within 15% of volumes in 2019 Q4. Orthopedic surgery remained most affected (44.5% below levels in 2019 Q4) and Plastic Surgery (21.9% lower). CONCLUSIONS: COVID-19 led to large volume declines across hospitals in Maryland followed by a partial recovery. We observed large variability, particularly across service lines. These results can help contextualize case-specific experiences and inform research studying potential health effects of these delays and cancellations.


Asunto(s)
COVID-19 , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Anciano , Hospitales Urbanos , Humanos , Pacientes Internos , Maryland/epidemiología , Medicare , Pandemias , Estados Unidos/epidemiología
5.
J Foot Ankle Surg ; 59(2): 423-426, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32131015

RESUMEN

Soft-tissue masses on the anterior ankle result from a broad range of underlying processes, often presenting a diagnostic challenge. Appropriate treatment of these tumors can be determined by using a combination of patient history, interpretation of pathologic findings, physical examination, and radiographic appearance. We present a case of an exceptionally rare malignant cutaneous adnexal tumor, highlighting the importance of adherence to fundamental biopsy principles for diagnosing and managing musculoskeletal lesions.


Asunto(s)
Articulación del Tobillo/patología , Procedimientos Ortopédicos/métodos , Neoplasias de las Glándulas Sudoríparas/diagnóstico , Anciano , Articulación del Tobillo/cirugía , Biopsia , Humanos , Hidroxietilrutósido , Imagen por Resonancia Magnética , Masculino , Neoplasias de las Glándulas Sudoríparas/cirugía
6.
Foot Ankle Surg ; 25(4): 495-502, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30321961

RESUMEN

BACKGROUND: Our purpose was to assess the reliability of measurements of adult-acquired flatfoot deformity (AAFD) taken by investigators of different levels of clinical experience using weightbearing computed tomography (WBCT). METHODS: Nineteen AAFD patients underwent WBCT. Three investigators with different levels of clinical experience made AAFD measurements in axial, coronal, and sagittal planes. Intra- and interobserver reliability were assessed. Mean values for each measurement were compared between investigators. RESULTS: After a training protocol, substantial to perfect intra- and interobserver reliability was observed for most measures, regardless of the investigator's experience level. Significant differences between investigators were observed in 2 of 21 measured parameters: medial cuneiform-first metatarsal angle (P=0.003) and navicular-medial cuneiform angle (P=0.001). CONCLUSIONS: AAFD radiographic measurements can be performed reliably by investigators with different levels of clinical experience using WBCT. LEVEL OF EVIDENCE: Level II, prospective comparative study.


Asunto(s)
Competencia Clínica , Pie Plano/diagnóstico por imagen , Soporte de Peso , Adulto , Pesos y Medidas Corporales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Estudios Prospectivos , Reproducibilidad de los Resultados , Tomografía Computarizada por Rayos X
7.
Foot Ankle Surg ; 25(6): 771-781, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30442425

RESUMEN

BACKGROUND: To investigate the reliability and reproducibility of syndesmosis measurements on weightbearing (WB) cone-beam computed tomography (CBCT) images and compare them with measurements obtained using non-weightbearing (NWB) images. METHODS: In this IRB-approved, retrospective study of 5 men and 9 women with prior ankle injuries, simultaneous WB and NWB CBCT scans were taken. A set of 21 syndesmosis measurements using WB and NWB images were performed by 3 independent observers. Pearson/Spearman correlation and intra-class correlation (ICC) were used to assess intra- and inter-observer reliability, respectively. RESULTS: We observed substantial to perfect intra-observer reliability (ICC=0.72-0.99) in 20 measurements. Moderate to perfect agreement (ICC=0.45-0.97) between observers was noted in 19 measurements. CONCLUSION: Measurements evaluating the distance between tibia and fibula in the axial plane 10mm above the plafond had high intra- and inter-observer reliability. Mean posterior tibio-fibular distance, diastasis, and angular measurement were significantly different between WB and NWB images.


Asunto(s)
Articulación del Tobillo/diagnóstico por imagen , Tomografía Computarizada de Haz Cónico , Inestabilidad de la Articulación/diagnóstico por imagen , Soporte de Peso/fisiología , Adulto , Anciano , Traumatismos del Tobillo/fisiopatología , Articulación del Tobillo/fisiopatología , Diástasis Ósea/diagnóstico por imagen , Diástasis Ósea/fisiopatología , Femenino , Humanos , Inestabilidad de la Articulación/fisiopatología , Persona de Mediana Edad , Reproducibilidad de los Resultados , Estudios Retrospectivos , Rotación , Adulto Joven
8.
Instr Course Lect ; 66: 635-645, 2017 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-28594533

RESUMEN

An Institute of Medicine report published in 2000 brought attention to the devastating consequences of medical errors. The report estimated that 98,000 deaths occurred in US hospitals each year as a result of medical errors and spawned investigations into factors that are associated with medical errors as well as strategies to avoid them. Taking cues from high-reliability organizations, such as the airline industry, evidence-based tools were developed to minimize human risk factors and foster teamwork, communication, and other skills that are essential to patient safety and quality. Orthopaedic surgeons are in a unique position to advocate for patients and to lead healthcare teams through the cultural changes that are necessary to avoid harm and improve outcomes. The American Academy of Orthopaedic Surgeons has made a commitment to educate interdisciplinary healthcare teams and uses TeamSTEPPS to educate orthopaedic surgeons on the knowledge, skills, and attitudes that are necessary to develop teamwork and improve patient safety and the quality of care. Orthopaedic surgeons should understand the need for improved teamwork and the resources that are available to shape the cultural changes that are necessary to avoid harm and improve outcomes.


Asunto(s)
Comunicación , Ortopedia , Grupo de Atención al Paciente , Seguridad del Paciente , Humanos , Reproducibilidad de los Resultados
9.
J Surg Orthop Adv ; 25(2): 89-92, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27518292

RESUMEN

The Military Orthopaedic Trauma Registry (MOTR) orginally began as part of the Department of Defense Trauma Registry (DoDTR) and became a live registry in 2013. As a quality improvement process, this study examined MOTR data for 20 female amputees compared with DoDTR data. The DoDTR provided diagnosis and procedure codes as a list but no details. The MOTR provided additional data, including specific limb, fracture classifications, and associated injuries per limb. The MOTR allowed for construction of a treatment time line for each limb, including number and timing of debridements, antibiotics, and implant types. Orthopaedic-specific complications were also coded more frequently in the MOTR and clearly identified with a specific injury and treatment. During initial quality control checks, the MOTR provides a greater volume and granularity of detail for orthopaedic-specific injury and treatment information, indicating that the MOTR is on track to provide a valuable repository for data-driven orthopaedic management of combat injury.


Asunto(s)
Exactitud de los Datos , Medicina Militar , Ortopedia , Sistema de Registros , Heridas y Lesiones , Amputación Quirúrgica , Traumatismos por Explosión/cirugía , Calcáneo/lesiones , Desbridamiento , Fasciotomía , Femenino , Humanos , Traumatismos de la Pierna/cirugía , Traumatismo Múltiple/cirugía , Mejoramiento de la Calidad , Infección de la Herida Quirúrgica , Fracturas de la Tibia , Adulto Joven
10.
Eur J Orthop Surg Traumatol ; 26(6): 665-70, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27379606

RESUMEN

OBJECTIVE: To investigate the risk and determinants of knee replacement (KR) in subjects with or at risk of osteoarthritis (OA) and a history of arthroscopy. METHODS: Data from the osteoarthritis initiative cohort were analyzed (n = 4796, up to the seventh year of follow-up). Cox proportional hazard analysis was used to determine the risk of KR according to the history of arthroscopy. A multivariable model was used to determine the risk factors for KR among subjects with a history of arthroscopy (n = 842), including age, gender, body mass index, history of knee injury, and baseline physical activity scale for the elderly, Western Ontario and McMaster (WOMAC) total score, and radiographic Kellgren and Lawrence (KL) score. RESULTS: History of arthroscopy was associated with risk of KR after adjustments for the mentioned determinants of OA (HR: 1.90 (1.49-2.44); P value <0.001). Female gender (HR: 1.86 (1.30-2.68); P value <0.001), higher WOMAC (HR: 1.02 (1.01-1.03); P value <0.001), and KL score (HR: 2.64 (2.08-3.35); P value <0.001) increased the risk of KR among subjects with a history of arthroscopy. Subjects with a history of knee injury had 50 % lower risk of KR (HR: 0.50 (0.35-0.72); P value <0.001) after arthroscopy. CONCLUSION: Female gender, more clinical symptoms and radiographic signs of OA, was associated with higher risk of future KR in subjects with a history of arthroscopy. Subjects with arthroscopy in the setting of concomitant knee injury were 50 % less likely to undergo KR compared to subjects who underwent arthroscopy without a history of concomitant knee injury.


Asunto(s)
Artroplastia de Reemplazo de Rodilla , Artroscopía , Osteoartritis de la Rodilla , Anciano , Artroplastia de Reemplazo de Rodilla/métodos , Artroplastia de Reemplazo de Rodilla/estadística & datos numéricos , Artroscopía/efectos adversos , Artroscopía/métodos , Artroscopía/estadística & datos numéricos , Estudios de Cohortes , Femenino , Humanos , Articulación de la Rodilla/cirugía , Masculino , Persona de Mediana Edad , Osteoartritis de la Rodilla/diagnóstico , Osteoartritis de la Rodilla/cirugía , Dimensión del Dolor/métodos , Radiografía/métodos , Medición de Riesgo , Factores de Riesgo , Índice de Severidad de la Enfermedad
11.
J Am Acad Orthop Surg ; 22(1): 57-62, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24382880

RESUMEN

The 2013 Extremity War Injury symposium focused on the sequelae of combat-related injuries, including posttraumatic osteoarthritis, amputations, and infections. Much remains to be learned about posttraumatic arthritis, and there are few circumstances in which a definitive arthroplasty should be performed in an acutely injured and open joint. Although the last decade has seen tremendous advances in the treatment of combat upper extremity injuries, many questions remain unanswered, and continued research focusing on improving reconstruction of large segmental defects remains critical. Discussion of infection centered on the need for novel methods to reduce the bacterial load following the initial débridement procedures. Novel methods of delivering antimicrobial therapy and anti-inflammatory medications directly to the wound were discussed as well as the need for near real-time assessment of bacterial and fungal burden and further means of prevention and treatment of biofilm formation and the importance of animal models to test therapies discussed. Moderators and lecturers of focus groups noted the continuing need for improved prehospital care in the management of junctional injuries, identified optimal strategies for both surgical repair and/or reconstruction of the ligaments in multiligamentous injuries, and noted the need to mitigate bone mineral density loss following amputation and/or limb salvage as well as the necessity of developing better methods of anticipating and managing heterotopic ossification.


Asunto(s)
Ligamentos Articulares/lesiones , Medicina Militar , Personal Militar , Extremidad Superior/lesiones , Guerra , Heridas y Lesiones/terapia , Amputación Traumática , Miembros Artificiales , Vasos Sanguíneos/lesiones , Grupos Focales , Humanos , Recuperación del Miembro , Resultado del Tratamiento , Heridas y Lesiones/cirugía
12.
J Surg Orthop Adv ; 23(2): 57-63, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24875334

RESUMEN

This study examines the amputees from the Army and Marine Corps, the two military branches that have sustained the majority of combat-related amputations. All U.S. service members who sustained major extremity amputations from October 2001 through July 2011 were analyzed. Amputation levels, demographics, and mounted or dismounted status at injury were examined. There were 835 Army and 344 Marine amputees; 52.9% of all Marine amputees occurred during 2010 and 2011. Over 50% of Marine and 44% of Army amputees sustaining an amputation during 2010 and 2011 sustained multiple amputations. Dismounted service members had significantly (p < .0001) higher Injury Severity Scores and were significantly more likely to sustain double (p = .0082) and triple (p < .0001) amputations than mounted personnel. Marine amputees were significantly (p < .0001) more likely to be dismounted than Army amputees. The number of multiple amputees increased substantially in 2010 and 2011. Marine amputees, particularly dismounted, are at an increased risk of sustaining multiple amputations.


Asunto(s)
Amputación Traumática/epidemiología , Personal Militar/estadística & datos numéricos , Adulto , Campaña Afgana 2001- , Femenino , Humanos , Guerra de Irak 2003-2011 , Masculino , Estudios Retrospectivos , Adulto Joven
13.
J Surg Orthop Adv ; 23(2): 64-7, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24875335

RESUMEN

The clinical application of evidence-based medicine is influenced by the quality of the published literature. Journals assign objective levels of evidence to articles to describe the quality and reliability of individual articles. Studies assigned levels I to III are considered higher quality studies. This study reviewed 60 continuous years of the American edition of the Journal of Bone and Joint Surgery to analyze trends in the quality of research published by U.S. military orthopaedic surgeons. Three hundred and six of 371 identified articles were assigned a level of evidence from I to V. These were then analyzed to determine if military orthopaedic surgeons were producing higher quality studies over time. Over time, the total number of articles published decreased. However, the number of higher quality studies and average level of evidence per decade improved over time. This trend toward publishing higher quality studies is consistent with the general orthopaedic community and highlights the need for continued work by the military orthopaedic community to conduct higher quality studies.


Asunto(s)
Medicina Basada en la Evidencia/estadística & datos numéricos , Medicina Militar/normas , Ortopedia/normas , Medicina Basada en la Evidencia/tendencias , Medicina Militar/estadística & datos numéricos , Medicina Militar/tendencias , Ortopedia/estadística & datos numéricos , Ortopedia/tendencias
14.
J Bone Joint Surg Am ; 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38502726

RESUMEN

ABSTRACT: Gun violence is an epidemic throughout the United States and is increasing around the world-it is a public health crisis. The impact of gun violence is not limited to the victims (our patients); it also extends to the physicians and caregivers who are taking care of these patients every day. Even more broadly, gun violence affects those living and going to work in potentially dangerous environments. The "vicarious trauma" that is experienced in these situations can have long-term effects on physicians, nurses, and communities. Importantly, socioeconomic disparities and community deprivation strongly correlate with gun violence. Systemic factors that are deeply ingrained in our society can increase concerns for these underrepresented patient populations and cause increased stressors with substantial health consequences, including delayed fracture-healing and poorer overall health outcomes. It is incumbent on us as physicians to take an active role in speaking up for our patients. The importance of advocacy efforts to change policy (not politics) and continue to push for improvement in the increasingly challenging environments in which patients and physicians find themselves cannot be overstated. Multiple national organizations, including many orthopaedic and general surgery associations, have made statements advocating for change. The American College of Surgeons, in collaboration with many other medical organizations, has supported background checks, registration, licensure, firearm education and training, safe storage practices, red flag laws, addressing mental health issues, and more research to better inform an approach going forward and to address the root causes of violence. We encourage the orthopaedic surgery community to stand together to protect each other and our patients, both physically and mentally, with agreement on these principles.

15.
Bone Res ; 12(1): 16, 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38443372

RESUMEN

Bone is a mechanosensitive tissue and undergoes constant remodeling to adapt to the mechanical loading environment. However, it is unclear whether the signals of bone cells in response to mechanical stress are processed and interpreted in the brain. In this study, we found that the hypothalamus of the brain regulates bone remodeling and structure by perceiving bone prostaglandin E2 (PGE2) concentration in response to mechanical loading. Bone PGE2 levels are in proportion to their weight bearing. When weight bearing changes in the tail-suspension mice, the PGE2 concentrations in bones change in line with their weight bearing changes. Deletion of cyclooxygenase-2 (COX2) in the osteoblast lineage cells or knockout of receptor 4 (EP4) in sensory nerve blunts bone formation in response to mechanical loading. Moreover, knockout of TrkA in sensory nerve also significantly reduces mechanical load-induced bone formation. Moreover, mechanical loading induces cAMP-response element binding protein (CREB) phosphorylation in the hypothalamic arcuate nucleus (ARC) to inhibit sympathetic tyrosine hydroxylase (TH) expression in the paraventricular nucleus (PVN) for osteogenesis. Finally, we show that elevated PGE2 is associated with ankle osteoarthritis (AOA) and pain. Together, our data demonstrate that in response to mechanical loading, skeletal interoception occurs in the form of hypothalamic processing of PGE2-driven peripheral signaling to maintain physiologic bone homeostasis, while chronically elevated PGE2 can be sensed as pain during AOA and implication of potential treatment.


Asunto(s)
Interocepción , Osteoartritis , Animales , Ratones , Dinoprostona , Tobillo , Encéfalo , Dolor
16.
Res Sq ; 2023 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-37790467

RESUMEN

Bone is a mechanosensitive tissue and undergoes constant remodeling to adapt to the mechanical loading environment. However, it is unclear whether the signals of bone cells in response to mechanical stress are processed and interpreted in the brain. In this study, we found that the hypothalamus of the brain regulates bone remodeling and structure by perceiving bone PGE2 concentration in response to mechanical loading. Bone PGE2 levels are in proportion to their weight bearing. When weight bearing changes in the tail-suspension mice, the PGE2 concentrations in bones change in line with their weight bearing changes. Deletion of Cox2 or Pge2 in the osteoblast lineage cells or knockout Ep4 in sensory nerve blunts bone formation in response to mechanical loading. And sensory denervation also significantly reduces mechanical load-induced bone formation. Moreover, mechanical loading induces CREB phosphorylation in the hypothalamic ARC region to inhibit sympathetic TH expression in the PVN for osteogenesis. Finally, we show that elevated PGE2 is associated with ankle osteoarthritis (AOA) and pain. Together, our data demonstrate that in response to mechanical loading, skeletal interoception occurs in the form of hypothalamic processing of PGE2-driven peripheral signaling to maintain physiologic bone homeostasis, while chronically elevated PGE2 can be sensed as pain during AOA and implication of potential treatment.

17.
Orthopedics ; 46(1): 47-53, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36314878

RESUMEN

The purpose of this study was to assess the association between social media presence (Twitter and Instagram), diversity in orthopedic surgery residency programs, and the number of applications received by a program. Data from Twitter and Instagram for 179 orthopedic residency programs accredited by the Accreditation Council for Graduate Medical Education were collected, including the presence of a social media account, date of first post, number of posts, and number of followers. Residency program data were collected from the Association of American Medical Colleges Residency Explorer Tool and included percentage of Whiteresidents, percentage of male residents, residency ranking, and number of applications submitted during the 2019 application cycle. Bivariate and multivariable analyses were performed with adjustment for program ranking. Of 179 residency programs, 34.6% (n=62) had Twitter, and 16.7% (n=30) had Instagram. Overall, 39.7% (n=71) had a social media presence, defined as having at least one of the two forms of social media. Programs with social media presences had higher average rankings (48.1 vs 99.6 rank, P<.001). After adjusting for program ranking, social media presence was associated with increased applications during the 2019 application cycle (odds ratio [OR]=2.76, P=.010). Social media presence was associated with increased odds of gender diversity (OR=3.07, P=.047) and racial diversity (OR=2.21, P=.041). Individually, Twitter presence was associated with increased odds of gender (OR=4.81, P=.018) and racial diversity (OR=4.00, P=.021), but Instagram was not (P>.05). Social media presence is associated with more residency program applications and increased resident diversity. Social media can be used to highlight inclusivity measures and related opportunities. [Orthopedics. 2023;46(1):47-53.].


Asunto(s)
Internado y Residencia , Procedimientos Ortopédicos , Ortopedia , Medios de Comunicación Sociales , Humanos , Masculino , Educación de Postgrado en Medicina
18.
Trauma Surg Acute Care Open ; 8(1): e001073, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37564125

RESUMEN

Objective: US trauma centers (TCs) must remain prepared for mass casualty incidents (MCIs). However, trauma surgeons may lack formal MCI training. The recent COVID-19 pandemic drove multiple patient surges, overloaded Emergency Medical Services (EMS) agencies, and stressed TCs. This survey assessed trauma surgeons' MCI training, experience, and system and personal preparedness before the pandemic compared with the pandemic's third year. Methods: Survey invitations were emailed to all 1544 members of the American Association for the Surgery of Trauma in 2019, and then resent in 2022 to 1575 members with additional questions regarding the pandemic. Questions assessed practice type, TC characteristics, training, experience, beliefs about personal and hospital preparedness, likelihood of MCI scenarios, interventions desired from membership organizations, and pandemic experiences. Results: The response rate was 16.7% in 2019 and 12% in 2022. In 2022, surgeons felt better prepared than their hospitals for pandemic care, mass shootings, and active shooters, but remained feeling less well prepared for cyberattack and hazardous material events, compared with 2019. Only 35% of the respondents had unintentional MCI response experience in 2019 or 2022, and even fewer had experience with intentional MCI. 78% had completed a Stop the Bleed (STB) course and 63% own an STB kit. 57% had engaged in family preparedness activities; less than 40% had a family action plan if they could not come home during an MCI. 100% of the respondents witnessed pandemic-related adverse events, including colleague and coworker illness, patient surges, and resource limitations, and 17% faced colleague or coworker death. Conclusions: Trauma surgeons thought that they became better at pandemic care and rated themselves as better prepared than their hospitals for MCI care, which is an opportunity for them to take greater leadership roles. Opportunities remain to improve surgeons' family and personal MCI preparedness. Surgeons' most desired professional organization interventions include advocacy, national standards for TC preparedness, and online training. Level of evidence: VII, survey of expert opinion.

19.
Disaster Med Public Health Prep ; : 1-15, 2023 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-37702089

RESUMEN

BACKGROUND: Monoclonal antibody (mAb) treatment for COVID-19 has been underutilized due to logistical challenges, lack of access and variable treatment awareness among patients and healthcare professionals. The use of telehealth during the pandemic provides an opportunity to increase access to COVID-19 care. METHODS: This is a single-center descriptive study of telehealth-based patient self-referral for mAb therapy between March 1, 2021, to October 31, 2021 at Baltimore Convention Center Field Hospital (BCCFH). RESULTS: Among the 1001 self-referral patients, the mean age was 47, and most were female (57%) white (66%), and had a primary care provider (62%). During the study period, self-referrals increased from 14 per month in March to 427 in October resulting in a 30-fold increase. About 57% of self-referred patients received a telehealth visit, and of those 82% of patients received mAb infusion therapy. The median time from self-referral to onsite infusion was 2 days (1-3 IQR). DISCUSSION: Our study shows the integration of telehealth with a self-referral process improved access to mAb infusion. A high proportion of self-referrals were appropriate and led to timely treatment. This approach helped those without traditional avenues for care and avoided potential delay for patients seeking referral from their PCPs.

20.
J Am Acad Orthop Surg ; 20 Suppl 1: S23-30, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22865131

RESUMEN

Orthopaedic disorders account for significant disability among adults in the United States. Previous studies have demonstrated long-term disability in military personnel with musculoskeletal conditions. However, these studies focused primarily on battlefield-injured service members and did not evaluate the entire population. The goal of this study was to determine and compare the disabling conditions of the entire United States Army during peacetime and war. We identified the conditions leading to separation from military service before and during Operation Iraqi Freedom and Operation Enduring Freedom. During war, more soldiers are found to be unfit for duty, and they have more conditions per individual that make them unfit. Orthopaedic conditions account for the greatest number of soldiers separated from military service at both time points studied (ie, January through March 2001, January through March 2009). Back pain and osteoarthritis are the two most common causes of separation from military service; these conditions are responsible for the most disability during peacetime and war.


Asunto(s)
Campaña Afgana 2001- , Personas con Discapacidad/estadística & datos numéricos , Guerra de Irak 2003-2011 , Personal Militar/estadística & datos numéricos , Enfermedades Musculoesqueléticas/epidemiología , Adulto , Dolor de Espalda/epidemiología , Humanos , Osteoartritis/epidemiología , Jubilación/estadística & datos numéricos , Estudios Retrospectivos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA