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BACKGROUND: Despite the heavy demand for and knowledge of the benefits of diversity, there is a persistent lack of racial, ethnic, and gender diversity in orthopaedic surgery. Since the implementation of diversity initiatives, data have shown that general surgery has been one of the top competitive surgical fields and has demonstrated growth in racial, ethnic, and gender diversity, making general surgery a good point of reference and comparison when analyzing racial and ethnic growth in orthopaedic surgery. QUESTIONS/PURPOSES: (1) What were the growth rates for Black and Hispanic orthopaedic residency applicants and residents between 2015 and 2022? (2) How did the growth rates of Black and Hispanic individuals in orthopaedic surgery compare with those of general surgery? (3) How did applicant recruitment and resident acceptance differ between Black and Hispanic people in orthopaedic surgery? METHODS: Applicant data were obtained from historical specialty-specific data from the Association of American Medical Colleges Electronic Residency Application Service Statistics database between 2018 and 2022, and resident data were obtained from the Accreditation Council of Graduate Medical Education Data Resource Book between 2015 and 2021. Between 2018 and 2022, the number of residency applicants totaled 216,677, with 17,912 Black residency applicants and 20,413 Hispanic residency applicants. Between 2015 and 2021, the number of active residents totaled 977,877, with 48,600 Black residents and 62,605 Hispanic residents. Because the applicant and resident data do not overlap throughout all years of observation, a sensitivity analysis of overlapping years (between 2018 and 2021) was conducted to ensure observed trends were consistent and valid throughout the study. All datasets obtained were used to establish the different racial and ethnic proportions of Black and Hispanic residency applicants and residents in four nonsurgical primary care specialties and four surgical subspecialties. A reference slope was created using data from the Association of American Medical Colleges and Accreditation Council of Graduate Medical Education to represent the growth rate for total residency applicants and residents, independently, across all residency specialties reported in each database. This slope was used for comparison among the resident and applicant growth rates for all eight selected specialties. Datapoints were placed into a scatterplot with regression lines, using slope equations to depict rate of growth and R 2 values to depict linear fit. Applicant growth corresponded to applicant recruitment and resident growth corresponded to resident acceptance. Chi-square tests were used to compare residents and residency applicants for the Black and Hispanic populations, separately. Two-way analysis of variance with a time-by-specialty interaction term (F-test) was conducted to determine differences between growth slopes. RESULTS: There was no difference in the growth rate of Black orthopaedic surgery applicants between 2018 and 2022, and there was no difference in the growth rate of Hispanic orthopaedic surgery applicants (R 2 = 0.43; p = 0.23 and R 2 = 0.63; p = 0.11, respectively). However, there was a very slight increase in the growth rate of Black orthopaedic surgery residents between 2015 and 2021, and a very slight increase in the growth rate of Hispanic orthopaedic surgery residents (R 2 = 0.73; p = 0.02 and R 2 = 0.79; p = 0.01, respectively). There were no differences in orthopaedic and general surgery rates of growth for Black applicants between 2018 and 2022 (0.004 applicants/year versus -0.001 applicants/year; p = 0.22), and no differences were found in orthopaedic and general surgery rates of growth for Black residents between 2015 and 2021 (0.003 residents/year versus 0.002 residents/year; p = 0.59). Likewise, Hispanic orthopaedic applicant growth rates did not differ between 2018 and 2022 from the rates of general surgery (0.004 applicants/year versus 0.005 applicants/year; p = 0.68), and there were no differences in orthopaedic and general surgery rates of growth for Hispanic residents (0.007 residents/year versus 0.01 residents/year; p = 0.35). Furthermore, growth rate comparisons between Black orthopaedic applicants and residents between 2018 and 2021 showed applicant growth was larger than resident growth, illustrating that the recruitment of Black applicants increased slightly more rapidly than resident acceptance. Growth rate comparisons between Hispanic applicants and residents showed a larger rate of resident growth, illustrating Hispanic resident acceptance increased slightly faster than applicant recruitment during that time. CONCLUSION: We found low acceptance of Black residents compared with the higher recruitment of Black applicants, as well as overall low proportions of Black and Hispanic applicants and residents. Future studies might explore the factors contributing to the higher acceptances of Hispanic orthopaedic residents than Black orthopaedic residents. CLINICAL RELEVANCE: We recommend that more emphasis should be placed on increasing Black and Hispanic representation at the department level to ensure cultural considerations remain at the forefront of applicant recruitment. Internal or external reviews of residency selection processes should be considered, and more immersive, longitudinal orthopaedic surgery clerkships and research mentorship experiences should be targeted toward Black and Hispanic students. Holistic reviews of applications and selection processes should be implemented to produce an increased racially and ethnically diverse applicant pool and a diverse residency work force, and implicit bias training should be implemented to address potential biases and diversity barriers that are present in residency programs and leadership.
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Negro o Afroamericano , Hispánicos o Latinos , Internado y Residencia , Humanos , Internado y Residencia/estadística & datos numéricos , Hispánicos o Latinos/estadística & datos numéricos , Negro o Afroamericano/estadística & datos numéricos , Estados Unidos , Femenino , Masculino , Cirugía General/educación , Ortopedia/educación , Educación de Postgrado en Medicina , Selección de Personal/tendencias , Diversidad Cultural , Cirujanos Ortopédicos/educación , Cirujanos Ortopédicos/tendencias , Cirujanos Ortopédicos/estadística & datos numéricosRESUMEN
BACKGROUND: There are numerous reasons for the increased use of telemedicine in orthopaedic surgery, one of which is the perception that virtual visits are more cost-effective than in-person visits. However, to our knowledge, no studies have compared the cost and time investment of virtual versus in-person visits using the time-driven activity-based costing (TDABC) method. Unlike methods that estimate cost based on charges for services rendered, TDABC provides a more precise measurement of costs, which is essential for assessing cost-effective innovations and moving to value-based healthcare. QUESTIONS/PURPOSES: (1) Are virtual visits less costly than analogous in-person visits, as measured by TDABC? (2) Does TDABC yield cost estimates that are lower or higher than the ratio of costs to charges (RCC), which is a simple, frequently used costing method? (3) Do the total time commitments of healthcare personnel, and that of the surgeon specifically, vary between the virtual and in-person settings? METHODS: Patients for this prospective, observational study were recruited from the practices of the highest-volume virtual-visit surgeons of three subspecialties (joints, hand, and sports) in a multihospital, tertiary-care academic institution in a metropolitan area in the Midwestern United States. Each surgeon had at least 10 years of clinical practice. Between June 2021 and September 2021, we analyzed both in-person and virtual return visits with patients who had an established relationship with the surgeon, because this represented the most frequent type of virtual visits and enabled a direct comparison between the two settings. New patients were not included in the study because of the limited availability of new-patient virtual visits; such patients often benefit from in-person physical examinations and on-site imaging. Additionally, patients seen for routine postoperative care were excluded because they were primarily seen in person by a physician assistant. Data were acquired during this period until 90 in-person and 90 virtual visits were collected according to selection criteria; no patients were lost to follow-up. Distinct process maps, which represent the steps involved in a clinic visit used to measure healthcare personnel time invested, were constructed for in-person and virtual clinic visits and used to compare total personnel and surgeon time spent. To calculate TDABC-derived costs, time allocated by personnel to complete each step was measured and used to calculate cost based on each personnel member's yearly salary. From the accounting department of our hospital, we acquired RCC cost data according to the level of service for a return visit. RESULTS: The total median cost, as measured by TDABC, was USD 127 (IQR USD 111 to 163) for an in-person visit and USD 140 (IQR USD 113 to 205) for a virtual visit (median difference USD 13; p = 0.16). RCC overestimated TDABC-calculated direct variable cost in five of six service levels (in-person levels 3, 4, and 5 and virtual levels 3 and 5) by a range of USD 25 to 88. Additionally, we found that virtual visits consumed 4 minutes less of total personnel time (in-person: 17 minutes [IQR 13.5 to 23.5 minutes], virtual: 13 minutes [IQR 11 to 19 minutes]; p < 0.001); however, this difference in personnel time did not equate to cost savings because surgeons spent 2 minutes longer on virtual visit activities than they did on in-person activities (in-person: 6 minutes [IQR 4.5 to 9.5 minutes], virtual: 8 minutes [IQR 5.5 to 13 minutes]; p = 0.003). CONCLUSION: Orthopaedic virtual visits did not deliver cost savings compared with in-person visits because surgeons spent more time on virtual visits and participated in virtual visits at the clinical site. Additionally, as anticipated, RCC overestimated costs as calculated by TDABC. These findings suggest that cost is not a primary advantage of transitioning to virtual visits, and that factors such as patient preference and satisfaction should be considered instead. LEVEL OF EVIDENCE: Level II, economic and decision analysis.
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Carcinoma de Células Renales , Neoplasias Renales , Ortopedia , Humanos , Estudios Prospectivos , Atención AmbulatoriaRESUMEN
BACKGROUND: To better define the clinical significance of patient-reported outcomes, the concept of a minimum clinically important difference (MCID) exists. The MCID is the minimum change that a patient will perceive as meaningful. Prior attempts to determine the MCID after carpal tunnel release are limited by methodologic concerns, including the lack of a true anchor-based MCID calculation. QUESTIONS/PURPOSES: To address previous methodologic concerns in existing studies, as well as establish a clinically useful value for clinicians, we asked: What are the MCID values for the Patient-Reported Outcomes Measurement Information System (PROMIS) Upper Extremity (UE), PROMIS Pain Interference (PI), and the QuickDASH after carpal tunnel release? METHODS: We conducted a prospective cohort study at an urban, Midwest, multihospital, academic health system. One hundred forty-seven adult patients undergoing unilateral carpal tunnel release between September 2020 and February 2022 were identified. PROMIS UE, PI, and QuickDASH scores were collected preoperatively and 3 months postoperatively. We also collected responses to an anchor-based question: "Since your treatment, how would you rate your overall function?" (much worse, worse, slightly worse, no change, slightly improved, improved, or much improved). Patients who did not respond to the 3-month postoperative surveys were excluded. A total of 122 patients were included in the final analysis (83% response proportion [122 of 147]). The mean age was 57 years (range 23 to 87 years), and 68% were women. The MCID was calculated using both anchor-based and distribution-based methods. Although anchor-based calculations are generally considered more clinically relevant because they consider patients' perceptions of improvement, an estimation of the minimum detectable change (which represents measurement error) relies on a distribution-based calculation. We determined a range of MCID values to propose a final MCID value for all three instruments. A negative MCID value for the PROMIS PI instrument represents a decrease in pain, whereas a positive value for the PROMIS UE instrument represents an improvement in function. A negative value for the QuickDASH instrument represents an increase in function. RESULTS: The final proposed MCID values were 6.2 (interquartile range [IQR] 5.4 to 9.0) for the PROMIS UE, -7.8 (IQR -6.1 to -8.5) for the PROMIS PI, and -18.2 (IQR -13.3 to -34.1) for the QuickDASH. CONCLUSION: We recommend that clinicians use the following values as the MCID after carpal tunnel release: 6 for the UE, -8 for the PI, and -18 for the QuickDASH. Surgeons may find these values useful when counseling patients postoperatively regarding improvement. Future studies could examine whether a single MCID (or small range) for PROMIS instruments is applicable to a variety of conditions and interventions. LEVEL OF EVIDENCE: Level II, therapeutic study.
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Síndrome del Túnel Carpiano , Adulto , Humanos , Femenino , Adulto Joven , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Masculino , Estudios Prospectivos , Síndrome del Túnel Carpiano/diagnóstico , Síndrome del Túnel Carpiano/cirugía , Diferencia Mínima Clínicamente Importante , Extremidad Superior , Medición de Resultados Informados por el Paciente , DolorRESUMEN
Introduction: The objectives of this study are to develop a decision aid for orthopedic patients to decide between virtual or in-person care and assess patient preferences for these modalities in hand clinic. Methods: An orthopedic virtual care decision aid was developed alongside orthopedic surgeons and a virtual care expert. Subject participation involved 5 steps: Orientation, Memory, and Concentration Test (OMCT), knowledge pretest, decision aid, postdecision aid questionnaire, and Decisional Conflict Scale (DCS) assessment. Patients presenting to hand clinic were initially provided the OMCT to assess decision-making capacity, with those failing excluded. Subjects were then administered a pretest to assess their understanding of virtual and in-person care. Subsequently, the validated decision aid was provided to patients, after which a postdecision aid questionnaire and DCS assessment were administered. Results: This study enrolled 124 patients. Pre- to postdecision aid knowledge test scores increased by 15.3% (p < 0.0001), and the average patient DCS score was 18.6. After reading the decision aid, 47.6% of patients believed that virtual and in-person care provided similar physician interaction, 46.0% felt little difference in effectiveness between the modalities, and 39.5% had no preference for either. Most patients understood their options (79.8%) and were ready to make a care modality decision (65.4%) following decision aid administration. Conclusion: Significant improvements in knowledge scores, strong DCS scores, and high levels of understanding and decision-making readiness support decision aid validity. Hand patients appear to have no consensus preferences for care modality, emphasizing the need for a decision aid to help determine individual care preferences.
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Técnicas de Apoyo para la Decisión , Médicos , Humanos , Prioridad del Paciente , Pacientes , Instituciones de Atención Ambulatoria , Toma de Decisiones , Participación del PacienteRESUMEN
First Report of Didymella rhei causing leaf spot on rhubarb in New York E. J. Indermaur1, C. T. C. Day1, and C. D. Smart1 1School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Geneva NY 14456 Corresponding author: C. D. Smart; Email: cds14@cornell.edu Rhubarb (Rheum spp.) is a perennial grown across the northern United States for petiole production (Foust & Marshall 1991). In August 2021, leaf spots were observed on rhubarb growing in a two-acre field in Erie Co., NY (Fig. S1). Approximately 30% of the plants in the field had leaf spot with disease severity of 5%. Initial symptoms on leaves were light brown, circular lesions with red margins that later coalesced into irregular spots. Lesion centers were dry with concentric rings, often perforating as they enlarged. Lesions on petioles were light brown, fusiform, and sunken with red margins. To identify the causal agent(s), symptomatic leaves and petioles from 50 plants (cultivar unknown) were collected with a W-shape sampling scheme. Lesion margins were surface sterilized with 70% ethanol for 60 s, 10% bleach for 60 s, rinsed in sterile water, plated on acidified potato dextrose agar (PDA), and incubated for two to four days at 20ËC. Hyphal tips from colony edges were transferred to new PDA plates. After 20 days, colonies (n=53) were olivaceous buff to grey olivaceous, producing white to grey, sparse aerial mycelium. Brown to black pycnidia were produced within five days in concentric rings around plate centers. Pycnidia were globose to subglobose, with one to two non-papillate or slightly papillate ostioles, and with mean diameter 75.8 (30.8 to 113.5) µm (n=20). Conidia were hyaline, ellipsoid or allantoid, and aseptate with mean ± SD dimensions of 6.2 ± 0.4 (4.9 to 8.1) x 2.2 ± 0.4 (1.3 to 3.3) µm (n=30) (Fig. S2). Based on these morphological characteristics, the isolates were initially identified as Didymella rhei [Ellis & Everh] (Qian Chen & L. Cai) (Boerema 2004). To confirm the identity, mycelia were scraped from PDA plates and homogenized using a TissueLyser II (Qiagen Inc.). Genomic DNA was extracted with a DNeasy Plant Mini Kit following manufacturer's instructions (Qiagen Inc.). PCR assays with primers ITS 4 and ITS 5 and fRPB2-7cR and RPB2-5F2 (Liu et al. 1999; Sung et al. 2007) were used to amplify the internal transcribed spacer (ITS) and the rpb2 gene regions of one representative isolate (strain RHU21204). Products were sequenced using Sanger chemistry. The sequences were deposited in GenBank with accession numbers OM903952 (ITS) and OM925897 (rpb2). The ITS and rpb2 sequences exhibited 99% (492/494 bp) and 100% (846/846 bp) identity with D. rhei accessions KF531831.1 and KP330428.1, respectively. Based on morphological and molecular characteristics, the pathogen was identified as D. rhei. To fulfill Koch's postulates, healthy leaves and petioles of four rhubarb seedlings (cultivars unknown) were spray-inoculated with a conidial suspension (1 × 107 conidia/ml) containing 0.2% Tween-20 from strain RHU21204. A tween suspension with no conidia was used as a control. Each treatment had three replicates. After inoculation, plants were placed in a 19ËC growth chamber with a 12-h photoperiod and misted for 30 min twice daily to maintain humidity above 80%. Initial symptoms were observed five days post inoculation (dpi), while control plants were asymptomatic. The pathogen was isolated 21 dpi from inoculated leaves and petioles with symptoms as described above (Fig. S1) and identified morphologically and molecularly as D. rhei. A representative isolate was deposited in the Cornell Plant Pathology Herbarium as CUP-070923. To our knowledge, this is the first report of D. rhei causing rhubarb leaf spot in New York and reducing the health and marketability of its host. Funding Source This project was funded by the College of Agriculture and Life Sciences, Cornell University. Literature Cited Boerema, G. H. et al. 2004. CABI Publishing. 288. Foust, C. M. and Marshall, D. E. 1991. HortScience 26:1360. DOI: 10.21273/HORTSCI.26.11.1360 Liu, Y. J. et al. 1999. Mol. Biol. Evol. 16:1799. Sung, G. H. et al. 2007. Mol. Phylogenet. Evol. 44:1204. DOI: 10.1016/j.ympev.2007.03.011.
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Diffusion of proteins and lipids in lipid membranes plays a pivotal role in almost all aspects of cellular biology, including motility, exo-/endocytosis and signal transduction. For this reason, gaining a detailed understanding of membrane structure and function has long been a major area of cell biology research. To better elucidate this structure-function relationship, various tools have been developed for diffusion measurements, including Fluorescence Recovery After Photobleaching (FRAP). Because of the complexity of cellular microenvironments, biological diffusion is often correlated over time and described by a time-dependent diffusion coefficient, D(t), although the underlying mechanisms are not fully understood. Since D(t) provides important information regarding cellular structures, such as the existence of subresolution barriers to diffusion, many efforts have been made to quantify D(t) by FRAP assuming a single power law, D(t) = Γt α - 1 where Γ and α are transport coefficient and anomalous exponent. However, straightforward approaches to quantify a general form of D(t) are lacking. In this study, we develop a novel mathematical and computational framework to compute the mean square displacement of diffusing molecules and diffusion coefficient D(t) from each individual time point of confocal FRAP data without the single power law assumption. Additionally, we developed an auxiliary equation for D(t) which can readily distinguish normal diffusion or single power law anomalous diffusion from other types of anomalous diffusion directly from FRAP data. Importantly, by applying this approach to FRAP data from a variety of membrane markers, we demonstrate the single power law anomalous diffusion assumption is not sufficient to describe various types of D(t) of membrane proteins. Lastly, we discuss how our new approaches can be applied to other fluorescence microscopy tools such as Fluorescence Correlation Spectroscopy (FCS) and Single Particle Tracking (SPT).
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Membrana Celular/metabolismo , Membrana Celular/fisiología , Difusión , Fluorescencia , Recuperación de Fluorescencia tras Fotoblanqueo , Lípidos de la Membrana/metabolismo , Proteínas de la Membrana/metabolismo , Microscopía Fluorescente/métodosRESUMEN
How the plasma membrane is bent to accommodate clathrin-independent endocytosis remains uncertain. Recent studies suggest Shiga and cholera toxin induce membrane curvature required for their uptake into clathrin-independent carriers by binding and cross-linking multiple copies of their glycosphingolipid receptors on the plasma membrane. But it remains unclear if toxin-induced sphingolipid crosslinking provides sufficient mechanical force for deforming the plasma membrane, or if host cell factors also contribute to this process. To test this, we imaged the uptake of cholera toxin B-subunit into surface-derived tubular invaginations. We found that cholera toxin mutants that bind to only one glycosphingolipid receptor accumulated in tubules, and that toxin binding was entirely dispensable for membrane tubulations to form. Unexpectedly, the driving force for tubule extension was supplied by the combination of microtubules, dynein and dynactin, thus defining a novel mechanism for generating membrane curvature during clathrin-independent endocytosis.
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Membrana Celular/metabolismo , Endocitosis , Microtúbulos/metabolismo , Animales , Células COS , Chlorocebus aethiops , Toxina del Cólera/metabolismo , Clatrina/metabolismo , Dineínas/metabolismo , Células HeLa , Humanos , Unión Proteica , Receptores de Transferrina/metabolismoRESUMEN
The integration of membrane proteins into "lipid raft" membrane domains influences many biochemical processes. The intrinsic structural properties of membrane proteins are thought to mediate their partitioning between membrane domains. However, whether membrane topology influences the targeting of proteins to rafts remains unclear. To address this question, we examined the domain preference of three putative raft-associated membrane proteins with widely different topologies: human caveolin-3, C99 (the 99 residue C-terminal domain of the amyloid precursor protein), and peripheral myelin protein 22. We find that each of these proteins are excluded from the ordered domains of giant unilamellar vesicles containing coexisting liquid-ordered and liquid-disordered phases. Thus, the intrinsic structural properties of these three topologically distinct disease-linked proteins are insufficient to confer affinity for synthetic raft-like domains.
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Precursor de Proteína beta-Amiloide/química , Caveolina 3/química , Microdominios de Membrana/química , Modelos Moleculares , Proteínas de la Mielina/química , Fragmentos de Péptidos/química , Precursor de Proteína beta-Amiloide/genética , Precursor de Proteína beta-Amiloide/metabolismo , Caveolina 3/genética , Caveolina 3/metabolismo , Colesterol/química , Colesterol/metabolismo , Colorantes Fluorescentes/química , Colorantes Fluorescentes/metabolismo , Humanos , Interacciones Hidrofóbicas e Hidrofílicas , Microdominios de Membrana/metabolismo , Microscopía Confocal , Microscopía Fluorescente , Proteínas de la Mielina/genética , Proteínas de la Mielina/metabolismo , Fragmentos de Péptidos/genética , Fragmentos de Péptidos/metabolismo , Fosfatidilcolinas/química , Fosfatidilcolinas/metabolismo , Fosfatidiletanolaminas/química , Conformación Proteica , Dominios y Motivos de Interacción de Proteínas , Proteínas Recombinantes/química , Proteínas Recombinantes/metabolismo , Rodaminas/química , Esfingomielinas/química , Esfingomielinas/metabolismo , Liposomas UnilamelaresAsunto(s)
Clavícula , Depresión , Depresión/diagnóstico , Depresión/terapia , Fijación Interna de Fracturas , Mano , HumanosRESUMEN
Injury to the scapholunate interosseous ligament is one of the most common causes of carpal instability and can impart considerable compromise to the patient's hand function. However, the management of scapholunate ligament injuries remains a dynamic concept, especially with regard to the multitude of options and techniques that exist for its surgical treatment. We present a thorough review of scapholunate anatomy and morphology, and the role of the scapholunate articulations in the kinetics and pathomechanics of wrist instability. We also review the current literature on the biomechanical properties of the scapholunate ligament and its subcomponents. A sound understanding of the anatomy and biomechanics of the scapholunate ligament can clarify its instability and may better orient current reconstructive procedures or pioneer better future techniques.
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Articulaciones del Carpo , Ligamentos Articulares/anatomía & histología , Ligamentos Articulares/fisiología , Hueso Semilunar , Hueso Escafoides , Humanos , Rango del Movimiento Articular , Articulación de la MuñecaRESUMEN
PURPOSE: To evaluate whether the lack of diversity in plastic and orthopedic surgery persists into hand surgery through assessment of trainee demographics. METHODS: Demographic data were obtained from compilations on graduate medical education by the Journal of the American Medical Association. Ethnic diversity was assessed using the proportions of minority trainees. We analyzed the trends in ethnic diversity in hand, orthopedic, and plastic surgery from 1995 to 2012 by evaluating changes in proportions of African American, Hispanic, and Asian trainees. In addition, we compared the proportions of minority trainees in various surgical specialties during 2009 to 2012. Trends in gender diversity were similarly analyzed using the proportions of female trainees. RESULTS: During 1995 to 2012, the proportions of minority and female trainees increased significantly in the fields of orthopedic, plastic, and hand surgery. To assess the current state of diversity in various specialties, we compared minority and female population proportions using pooled 2009 to 2012 data. The percentage of non-Caucasian trainees in hand surgery was significantly higher than that in orthopedic sports medicine and orthopedic surgery and significantly lower than in general surgery. The percentage of female trainees in hand surgery was significantly higher than that in orthopedic sports medicine and orthopedic surgery and significantly lower than in plastic and general surgery. CONCLUSIONS: Ethnic and gender diversity in hand surgery increased significantly between 1995 and 2012. Women constitute a fifth of hand surgery trainees. Efforts to increase diversity should be further pursued using proven strategies and innovating new ones. CLINICAL RELEVANCE: Diversity in the medical field has shown to be a beneficial factor in many aspects including research productivity and patient care. Understanding how the field of hand surgery has changed with regard to the diversity of its trainees may aid in providing more equitable and effective health care.
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Becas/estadística & datos numéricos , Mano/cirugía , Ortopedia , Cirujanos/estadística & datos numéricos , Etnicidad/estadística & datos numéricos , Femenino , Humanos , Masculino , Ortopedia/educación , Cirugía Plástica/educación , Recursos HumanosRESUMEN
Quantitative measurements of diffusion can provide important information about how proteins and lipids interact with their environment within the cell and the effective size of the diffusing species. Confocal fluorescence recovery after photobleaching (FRAP) is one of the most widely accessible approaches to measure protein and lipid diffusion in living cells. However, straightforward approaches to quantify confocal FRAP measurements in terms of absolute diffusion coefficients are currently lacking. Here, we report a simplified equation that can be used to extract diffusion coefficients from confocal FRAP data using the half time of recovery and effective bleach radius for a circular bleach region, and validate this equation for a series of fluorescently labeled soluble and membrane-bound proteins and lipids. We show that using this approach, diffusion coefficients ranging over three orders of magnitude can be obtained from confocal FRAP measurements performed under standard imaging conditions, highlighting its broad applicability.
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Recuperación de Fluorescencia tras Fotoblanqueo/métodos , Microscopía Confocal/métodos , Animales , Células COS , Chlorocebus aethiops , Interpretación Estadística de DatosRESUMEN
Every year since 1982, the American Society for Surgery of the Hand has sponsored a young member as its Bunnell Traveling Fellow. Named eponymously for the late physician and father of hand surgery, the Sterling Bunnell Traveling Fellowship enables young hand surgeons to foster national and international relationships that contribute to their higher learning and advance the principles of scholarship by improving treatment of hand and upper extremity disorders. This report is an account of the experiences and insights I gained while exploring national health care initiatives and wrist surgery innovations.
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Difusión de Innovaciones , Educación de Postgrado en Medicina , Becas , Mano/cirugía , Calidad de la Atención de Salud/normas , Sociedades , Muñeca/cirugía , Humanos , Administración de la Práctica Médica/normas , Mejoramiento de la Calidad/normas , Estados UnidosRESUMEN
STUDY DESIGN: Retrospective cohort comparison. INTRODUCTION: Using acetic acid iontophoresis (AAI) as a treatment modality significantly improved the functionality of hand in patients with recalcitrant scarring. METHODS: Open trigger finger release patients followed up exclusively at a hand clinic between 2009 and 2011 were analyzed. Group I recovered optimal total active range of motion (TAM) after 14 standard of care (SOC) therapy sessions but Group II (10 digits) could only reach optimal recovery after 7 additional AAI sessions. RESULTS: After SOC therapy, Group I's TAM recovery plateaued at 245 and Group II's at 219 (p < 0.01). After undergoing AAI, the TAM of Group II increased from 219 to 239 (p < 0.01). DISCUSSION: Clinical studies suggest that AAI can modify collagen structure in scars. AAI could be a novel non-surgical treatment for restoring functionality to areas affected by difficult, recalcitrant scars. CONCLUSION: AAI significantly improved the TAM of hand surgical patients who could not recover optimally with SOC therapy alone. LEVEL OF EVIDENCE: Level 3.
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Ácido Acético/administración & dosificación , Cicatriz/prevención & control , Iontoforesis , Complicaciones Posoperatorias/prevención & control , Trastorno del Dedo en Gatillo/cirugía , Anciano , Estudios de Cohortes , Terapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Terapia Ocupacional , Modalidades de Fisioterapia , Cuidados Posoperatorios , Estudios RetrospectivosRESUMEN
Ulnar-shortening osteotomy is a reliable solution to treat ulnar impaction syndrome, but it has a significant rate of nonunion as a known complication. Generally nonunion after the procedure is attributed to noninfectious causes. When infections happen, they follow the microbiological trends of nonunions elsewhere in the body. We present a case of ulnar-shortening osteotomy using an oblique-cut osteotomy system that resulted in septic nonunion. At the time of revision surgery, Cutibacterium acnes and Staphylococcus hominis were isolated from the osteotomy site. The patient was successfully treated using intravenous antibiotics and the two-stage Masquelet technique and eventually went on to bony union. As C acnes is rarely encountered in this context, this report highlights the need to consider all possible pathogens in the workup of a potentially septic nonunion. Surgeons should consider bacteria such as C acnes that require prolonged incubation for isolation from cultures, which may not be part of many institutions' usual protocol. [Orthopedics. 2024;47(4):e211-e213.].
Asunto(s)
Antibacterianos , Osteotomía , Humanos , Osteotomía/efectos adversos , Antibacterianos/uso terapéutico , Cúbito/cirugía , Infecciones por Bacterias Grampositivas/microbiología , Infecciones por Bacterias Grampositivas/diagnóstico , Fracturas no Consolidadas/cirugía , Fracturas no Consolidadas/microbiología , Masculino , Infección de la Herida Quirúrgica/microbiología , Infección de la Herida Quirúrgica/tratamiento farmacológico , Infección de la Herida Quirúrgica/diagnóstico , Infección de la Herida Quirúrgica/etiología , Femenino , Reoperación , Adulto , Propionibacteriaceae/aislamiento & purificaciónRESUMEN
BACKGROUND: Despite widespread acceptance of the importance of diversity in leadership, systemic challenges in leadership attainment in orthopaedic surgery still exist for several groups. We hypothesize that women, underrepresented in medicine groups, and Asians have decreased odds of achieving program director and chairperson positions compared with peers. METHODS: Demographic data were collected from the Association of American Medical Colleges for faculty, program directors, and chairpersons in orthopaedic surgery. Odds ratios were calculated treating race, ethnicity, or sex as the predictor variables and attainment of a leadership position as the outcome, comparing the composition of program directors in 2020 and chairpersons in 2019 with faculty in 2019. RESULTS: Significantly decreased odds were found for women at 0.37 (0.264 to 0.51 [P < 0.0001]) and the Other category at 0.16 (0.065 to 0.3864 [P = 0.0001]) while significantly increased odds were found for White and Black/African American faculty at 1.32 (1.02 to 1.71 [P = 0.0314]) and 1.95 (1.17 to 3.26 [P = 0.011]), respectively, in holding program director positions. Significantly decreased odds of attaining chairpersonship were found for women at 0.17 (0.07 to 0.41 [P = 0.0075]) and Asian faculty at 0.33 (0.14 to 0.75 [P = 0.0062]) while White faculty demonstrated significantly increased odds at 2.43 (1.41 to 4.19 [P = 0.0013]). CONCLUSIONS: Women showed markedly decreased odds of leadership attainment while Black/African American faculty had increased likelihood of becoming program directors but were not markedly more likely to become chairs. Asian faculty were less likely to become program directors and markedly less likely to become chairs. While decreased odds for women were expected based on current literature, decreased odds of Asians becoming chairs and an increased likelihood of Black/African American orthopaedic surgeons becoming program directors but not attaining the role of chairs at the same rate were novel findings, revealing concerning trends for these groups.
RESUMEN
Patient-reported outcome measures (PROs) are increasingly used in clinical assessment. Research on how patient support systems contribute to physician understanding of patient condition is limited. Thus, insights from significant others may provide value, especially when concerns exist regarding patient response validity. Patients recruited from the pre-operative environment undergoing orthopaedic hand procedures responded to PROMIS-Pain Interference (PI), PROMIS-Upper Extremity (UE), PROMIS-Depression (D), and QuickDASH. They then selected a significant other (SO) to do the same. Patients and SOs were also asked to complete the West Haven-Yale Multidimensional Pain Inventory (WHYMPI) as a measure of support-related responses. Patient and SO responses were compared, and support-related responses were added in subsequent analyses to examine their effect on SO PRO assessment.
RESUMEN
BACKGROUND: The purpose of this study is to compare outcomes of carpal tunnel release (CTR) in patients with and without double crush syndrome (DCS), defined as concurrent carpal tunnel syndrome (CTS) and cervical radiculopathy at C5-T1 on preoperative nerve conduction studies. METHODS: Patients with preoperative nerve conduction studies who underwent unilateral, isolated CTR were retrospectively identified. All patients completed preoperative and 3-month postoperative Patient-Reported Outcomes Measurement Information System (PROMIS) upper extremity (UE) and pain interference (PI), and Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaires, and responded to the anchor question: "Since your treatment, how would you rate your overall function?" (much worse, worse, slightly worse, no change, slightly improved, improved, much improved). Preoperative, postoperative, and changes in scores for UE, PI, and QuickDASH were compared, as were the anchor question responses and rates of achieving the minimal clinically important difference (MCID). RESULTS: Sixty-three patients with DCS and 115 patients with CTS only were included. At 3- to 4-month follow-up, absolute and change in UE, PI, and QuickDASH scores were not statistically different between patients with DCS and CTS. Rates of anchor question response and MCID achievement were comparable for patients with CTS only and DCS on each questionnaire. The MCID achievement ranged from 48.4% to 68.8% in the unmatched cohort and 48.4% to 60% in the matched group. CONCLUSIONS: At 3 to 4 months, patients with DCS experience similar patient-reported symptomatic and functional improvement, and achieve MCID of outcome measures at comparable rates to patients with CTS only. For patients with nerve compression at the carpal tunnel and cervical spine, CTR is a reasonable first step prior to proceeding with cervical spine decompression.