Comparison of Sociodemographic and Radiographic Features in Distal Radio Fracture Treatment: Hand Surgeons versus Non-specialists / Comparação de características sociodemográficas e radiográficas no tratamento de fratura de rádio distal: Cirurgiões de mão versus não especialistas

Abstract Objective: This study evaluated sociodemographic and radiographic features of patients with distal radial fractures treated at a trauma hospital in southern Brazil, comparing those treated by hand surgery specialists (group 1) and non-specialists (group 2). Methods: This study consists of a retrospective cohort of 200 patients treated in 2020. After reviewing medical records and radiographs, the following parameters were analyzed: age, gender, trauma mechanism, laterality, associated comorbidities and fractures, fracture classification (AO), radial height, radial inclination, and volar inclination. Comparison of the two groups used the Student t-test, chi-square test, or Fisher exact test. Results: Most subjects were women (54%), sustained low-energy traumas (58%), and were left-handed (53%). Group 1 had a lower mean age (50.2 years); most of their subjects sustained high-energy trauma (54%) and had type C fractures (73%); type A fractures prevailed in group 2 (72%). Radiographs showed a significant difference regarding the mean radial inclination (21.5° in group 1 and 16.5° in group 2 [p < 0.001] in women, and 21.3° in group 1 and 17° in group 2 [p < 0.001] in men) and volar inclination (10.1° and 12.8° in groups 1 and 2, respectively [p < 0.001]). In addition, the absolute number of cases with reestablished anatomical parameters per the three evaluated variables was also significantly different; all parameters were better in group 1. Conclusion: Hand surgeons treated the most severe fractures and had the best radiographic outcomes.

Resumo Objetivo: Avaliar as características sociodemográficas e radiográficas dos pacientes com fratura de rádio distal tratados em um hospital de trauma no sul do Brasil, comparando os casos tratados pelos especialistas em cirurgia da mão (grupo 1) com aqueles tratados por não especialistas (grupo 2). Métodos: Coorte retrospectiva realizada com 200 pacientes, no ano de 2020. Por meio da revisão de prontuários e radiografias, analisaram-se: idade, sexo, mecanismo de trauma, lateralidade, presença de comorbidades e fraturas associadas, classificação da fratura (AO), altura radial, inclinação radial e, inclinação volar. Comparou-se os dois grupos por meio do teste t de Student, qui-quadrado ou exato de Fisher. Resultados: A maioria era de pacientes do sexo feminino (54%), traumas de baixa energia (58%) e lateralidade esquerda (53%). O grupo 1 apresentou média de idade menor (50,2 anos), traumas de alta energia (54%), e fraturas tipo C (73%), enquanto no grupo 2 fraturas tipo A prevaleceram (72%). As radiografias apresentaram diferença significativa quanto à média de valores de inclinação radial (21,5° no grupo 1 e 16,5° no grupo 2 [p < 0,001] nas mulheres e, 21,3° no grupo 1 e 17° no grupo 2 [p < 0,001] nos homens) e inclinação volar (10,1° e 12,8° no grupo 1 e 2, respectivamente [p < 0,001]), bem como no número absoluto de casos que reestabeleceram os parâmetros anatômicos nas três variáveis avaliadas, sendo todos melhores no grupo 1. Conclusão: Os cirurgiões de mão trataram as fraturas mais graves e apresentaram os melhores resultados radiográficos.

Short-term clinical efficacy observation of lesion removal, bone graft fusion, and external brace treatment for late-stage wrist tuberculosis / 中国骨伤

OBJECTIVE@#To observe the clinical efficacy of lesion removal, bone grafting, fusion, and external fixation in the treatment of late-stage wrist tuberculosis.@*METHODS@#From October 2015 to May 2019, 25 patients with late-stage wrist tuberculosis were treated using lesion removal, bone grafting, fusion, and external fixation. Among these patients, there were 14 males and 11 females, aged from 40 to 74 years old, with an average age of (60.72±8.45) years old. The duration of the disease ranged from 5 to 24 months, with an average of (11.52±7.61) months. There were 11 cases of left wrist tuberculosis and 14 cases of right wrist tuberculosis, with 5 cases accompanied by sinus formation. Postoperative regular anti-tuberculosis treatment was continued. Visual analogue score (VAS), inflammatory indicators, Gartland-Werley wrist function score, and upper limb function score were observed before and after treatment.@*RESULTS@#All 25 patients were followed up for ranging from 12 to 36 months with an average of (19.7±6.3) months. At the latest follow-up, all wounds were healed satisfactorily, and there was no recurrence of tuberculosis or infection. VAS at one week before operation and three months after operation were (5.16±1.14) score and (1.68±0.80) score respectively. One week before operation and three months after operation, erythrocyte sedimentation rate (ESR) was (44.20±20.56) mm·h-1 and (14.44±1.14) mm·h-1, and C-reactive protein (CRP) was (12.37±7.95) mg·L-1 and (4.3±3.37) mg·L-1. The differences in all three data sets were statistically significant (P<0.01). According to Gartland-Werley wrist function scoring, the scores at one week before operation and one year after operation were (21.32±3.44) and (14.96±1.37) respectively, showed a statistically significant difference (P<0.01). According to the upper limb function score (disabilities of the arm, shoulder, and hand, DASH), the score was (70.52±7.95) at one week before operation and(28.84±2.30) at one year after operation. The difference was statistically significant (P<0.01). At the latest follow-up, no patient had a recurrence of tuberculosis.@*CONCLUSION@#The short-term clinical efficacy of treating wrist tuberculosis with lesion removal, bone grafting, fusion, and external fixation is satisfactory.

Radiological Evaluation of Volar Cortical Angle in the Anatolian Population / Evaluación Radiológica del Ángulo Cortical Volar en la Población Anatoliana

SUMMARY: Distal radius fractures are the most common fractures of the upper limb. The most commonly used method in the repair of these fractures is volar locking plates. Recently, the frequency of removal of volar locking plates after surgery has increased. There are many factors in its reduction. Anatomically, incompatibility of the distal end of the radius with volar locking plates is one of them. In previous studies, different volar cortical angle (VCA) values were found in other races. For this reason, this study aimed to determine the mean values by making VCA measurements of the Anatolian population. The study was designed retrospectively. In the study, measurements were made on computed tomography (CT) images of the distal end of the radius of 53 men and 28 women. Radial width, intermediate volar angle, and radial volar angle were measured in the images. On average, the radius width was 23.35±1.96 mm, and the intermediate volar angle was 26.02±.3.83°, radial volar angle was 24±3.07°. Radial width, intermediate volar angle, and radial volar angle differed significantly by gender (p<0.001). A significant correlation was found between radius width, intermediate volar angle, and radial volar angle values (p<0.001). It has been determined that the Anatolian population has a different VCA value than the European, Asian, and other populations. When using volar locking plates in distal radius fracture surgery, volar locking plates should be selected by considering the average values of the races.

Las fracturas del radio distal son las fracturas más comunes del miembro superior. El método más utilizado en la reparación de estas fracturas son las placas de bloqueo volar. Recientemente, ha aumentado la frecuencia de extracción de placas de bloqueo volar después de la cirugía. Existen muchos factores en su reducción y anatómicamente, la incompatibilidad de la extremidad distal del radio con las placas de bloqueo volar es una de ellas. En estudios anteriores, se encontraron diferentes valores del ángulo cortical volar (VCA) en otras grupos. Por esta razón, este estudio tuvo como objetivo determinar los valores medios, realizando mediciones de VCA de la población de Anatolia. El estudio fue diseñado de manera retrospectiva. En el estudio, se realizaron mediciones en imágenes de tomografía computarizada (TC) de la extremidad distal del radio de 53 hombres y 28 mujeres. En las imágenes se midieron el ancho radial, el ángulo volar intermedio y el ángulo volar radial. En promedio, el ancho del radio fue de 23,35 ± 1,96 mm, el ángulo volar intermedio fue de 26,02 ± 3,83° y el ángulo volar radial fue de 24 ± 3,07°. El ancho radial, el ángulo volar intermedio y el ángulo volar radial difirieron significativamente según el sexo (p<0,001). Se encontró una correlación significativa entre los valores del ancho del radio, el ángulo volar intermedio y el ángulo volar radial (p<0,001). Se ha determinado que la población de Anatolia tiene un valor de VCA diferente al de las poblaciones europeas, asiáticas y otras. Cuando se utilizan placas de bloqueo volar en cirugía de fractura de la extremidad distal del radio, las placas deben seleccionarse considerando los valores promedio de los individuos de diferentes grupos.

Analysis of Wrist Morphology Through Hamate and Lunate Bone Variations in Anatolian Population Using Plain Radiography / Análisis de la Morfología de la Articulación Radiocarpiana a Través de las Variaciones de los Huesos Hamato y Semilunar en la Población de Anatolia Mediante Radiografía Simple

SUMMARY: The present study aimed to evaluate wrist (lunate) anatomy in terms of the incidence of lunatum morphology on plain-radiographs among the Anatolian (Turkey) population, accompanied by demographic analysis. We obtained all the patients' data regarding demographical features, diagnosis, and posteroanterior (PA) X-ray imaging. Two radiograph-reviewers repeated the analysis twice, one month later, blinded to their findings before the previous review. The lunatum structure was determined as Type-1 (n:293) and Type-2 (n:207) for each radiograph. Most of the 500 wrists' radiographs [n:293 (58.6 %)] were type-I lunate. The mean age was 36.7±13.3 (range:18-90) years. Sex distribution was as follows: 185 (63.1 %) males to 108 (36.9 %) females. Type-2 lunate was seen in 207 participants (41.4 %). The mean age for type-2 was 41.6±15.2 (18-88) years. 142 (68.6 %) participants were male sex, while 65 (31.4 %) were females. The mean age of subjects with type-I showed a difference with type-II (p=0.007). There was no relationship in terms of sex (p=0.206) between the groups. In the Anatolian region, type-1 lunate was dominant compared to type-2. The incidence rate of lunate type in Anatolian population was similar to the Arab population.

El presente estudio tuvo como objetivo evaluar la anatomía de la articulación radiocarpiana en términos de la incidencia de la morfología del hueso semilunar en radiografías simples entre la población de Anatolia (Turquía), acompañado de un análisis demográfico. Obtuvimos todos los datos de los pacientes con respecto a las características demográficas, el diagnóstico y las imágenes de rayos X posteroanteriores (PA). Dos revisores de radiografías repitieron el análisis dos veces, un mes después, sin conocer sus hallazgos antes de la revisión anterior. La estructura del lunatum se determinó como Tipo-1 (n:293) y Tipo-2 (n:207) para cada radiografía. La mayoría de las 500 radiografías de muñecas [n:293 (58,6 %)] fueron semilunar tipo I. La edad media fue de 36,7±13,3 (rango: 18-90) años. La distribución por sexos fue la siguiente: 185 (63,1 %) hombres y 108 (36,9 %) mujeres. El semilunar tipo 2 se observó en 207 participantes (41,4 %). La edad media para el tipo 2 fue de 41,6±15,2 (18-88) años. 142 (68,6 %) participantes eran del sexo masculino, mientras que 65 (31,4 %) eran del sexo femenino. La edad media de los sujetos con tipo I mostró una diferencia con el tipo II (p = 0,007). No hubo relación en cuanto al sexo (p=0,206) entre los grupos. En la región de Anatolia, el semilunar tipo 1 era dominante en comparación con el tipo 2. La tasa de incidencia del tipo semilunar en la población de Anatolia fue similar a la de la población árabe.

Total Wrist Arthrodesis: A Preoperative Test to Predict Functional Outcomes / Artrodese total do punho: Um teste pré-operatório para prever resultados funcionais

Abstract Objective The study aims to demonstrate an evaluation method to predict the functional success of total wrist arthrodesis (TWA) and assist its indication. Methods A prospective study including ten patients submitted to (TWA) posttraumatic arthritis. Exclusion criteria were patients who lost postoperative follow-up or incomplete information in the medical record. The objective functional assessment (handgrip strength, three-point pinch, lateral pinch and pulp-pulp pinch) and the subjective functional assessment (DASH, PRWE, EVA) were evaluated in 3 different periods: (1) Before surgery without articular anesthesia, (2) Before surgery under articular anesthesia and (3) 12 weeks after the surgical procedure. Results There was an increase in handgrip strength in all three pinches measurements after pain relief, both after joint anesthesia and after the consolidation of the arthrodesis (p < 0.05). In the comparisons between the subjective evaluations (DASH, PRWE and VAS), the patients had better scores in the postoperative evaluation after 12 weeks (p < 0.05). There was no statistical difference when comparing the mean strength values found after anesthesia and after 12 weeks of TWA. Conclusion the outcomes could propose an assessment protocol for patients with indication for TWA, in which patients with good response to intra-articular anesthetic infiltration would benefit from the effects of the surgical procedure.

Resumo Objetivo O estudo tem como objetivo demonstrar um método de avaliação para predizer o sucesso funcional da artrodese total do punho (ATP) e auxiliar na sua indicação. Métodos Um estudo prospectivo incluindo dez pacientes submetidos a ATP por artrite pós-traumática. Os critérios de exclusão foram pacientes que perderam o acompanhamento pós-operatório ou informações incompletas no prontuário. A avaliação funcional objetiva (força de preensão manual, pinça de três pontos, pinça lateral e pinça polpa-a-polpa) e a avaliação funcional subjetiva (DASH, PRWE, EVA) foram avaliadas em 3 momentos diferentes: (1) Antes da cirurgia sem anestesia articular, (2) Antes da cirurgia sob anestesia articular e (3) 12 semanas após o procedimento cirúrgico. Resultados Houve aumento da força de preensão palmar nas três medidas de pinça após o alívio da dor, tanto após a anestesia articular quanto após a consolidação da artrodese (p < 0,05). Nas comparações entre as avaliações subjetivas (DASH, PRWE e VAS), os pacientes tiveram melhores escores na avaliação pós-operatória após 12 semanas (p < 0,05). Não houve diferença estatística ao comparar os valores médios de força encontrados após a anestesia e após 12 semanas de ATP.

Validity of the Maturation Stage Method in the Individual Assessment of Midpalatal Suture Ossification Before Maxillary Expansion: A Systematic Review / Validez del Método de la Etapa de Maduración en la Evaluación Individual de la Osificación de la Sutura Palatina Mediana Previo a la Expansión Maxilar: Una Revisión Sistemática

In 2013, midpalatal suture maturation stage assessment was proposed for the evaluation of patients before performing maxillary expansion. In this study, we aimed to analyze the association between the midpalatal suture maturation stages assessed by CBCT, according to the method described by Angelieri et al., and other objective methods used to assess skeletal maturation or bone fusion. A computerized database search was conducted using PubMed, Cochrane Library, SciELO, LILACS, Web of Science, and Scopus, without language restriction. Unpublished literature was searched on ClinicalTrials.gov, the National Research Register, and Pro-Quest Dissertation Abstracts and Thesis database. Authors were contacted when necessary, and reference lists of the included studies were screened. Search terms included midpalatal suture, maturation, correlation, diagnostic performance, classification, evaluation, assessment, and relationship. Quality assessment was performed using the Observational Cohort and Cross-Sectional Studies tool developed by the National Heart, Lung, and Blood Institute. Eleven studies met the inclusion criteria. Of all the studies included, 81.9% had fair qualit y and 18.1% good quality, respectively. Eight out of eleven studies assessed the correlation between the midpalatal suture maturation method and the skeletal maturity evaluated by CVM method (Spearman's correlation coefficient: 0.244-0.908). Two out of eleven studies evaluated the correlation between midpalatal suture maturation method and the skeletal maturity assessed by HWM method (Spearman's correlation coefficient: 0.904-0.905) Even though midpalatal suture maturation stage assessment needs an exhaustive training and calibration process, it is a valid method to evaluate skeletal maturation or bone fusion. From a clinical perspective, for patients at CS4, CS5 and CS6, an assessment of the midpalatal suture on CBCT is indicated. A similar assessment should be done in patients at SMI 7-9.

En 2013, se propuso un nuevo método para la evaluación del estadio de maduración de la sutura palatina mediana para la evaluación de los pacientes antes de realizar la expansión maxilar. En este estudio, nuestro objetivo fue analizar la asociación entre las etapas de maduración de la sutura palatina mediana evaluada en CBCT, según el método descrito por Angelieri et al., y otros métodos objetivos utilizados para evaluar la maduración esquelética o la fusión ósea. Se realizó una búsqueda en las bases de datos PubMed, Cochrane Library, SciELO, LILACS, Web of Science y Scopus, sin restricción de idioma. Se buscó literatura no publicada en ClinicalTrials.gov, el Registro Nacional de Investigación y la base de datos Pro-Quest Dissertation Abstracts and Thesis. Se estableció contacto con los autores cuando fue necesario y se revisaron las listas de referencias de los estudios incluidos. Los términos de búsqueda incluyeron sutura palatina mediana, maduración, correlación, rendimiento diagnóstico, clasificación, evaluación, valoración y relación. La evaluación de la calidad se realizó mediante la herramienta de Estudios transversales y de cohortes observacionales desarrollada por el Instituto Nacional del Corazón, los Pulmones y la Sangre. Once estudios cumplieron con los criterios de inclusión. Del total de estudios incluidos, el 81.9% tuvo calidad regular y el 18.1% calidad buena, respectivamente. Ocho de once estudios evaluaron la correlación entre el método de maduración de la sutura palatina mediana y la madurez esquelética evaluada por el método CVM (coeficiente de correlación de Spearman: 0.244-0.908). Dos de once estudios evaluaron la correlación entre el método de maduración de la sutura palatina mediana y la madurez esquelética evaluada por el método HWM (coeficiente de correlación de Spearman: 0.904-0.905). Aunque la evaluación del estado de maduración de la sutura palatina mediana necesita un proceso exhaustivo de entrenamiento y calibración, es un método válido para evaluar la maduración esquelética o la fusión ósea. Desde una perspectiva clínica, para pacientes en CS4, CS5 y CS6, está indicada una evaluación de la sutura palatina mediana en CBCT. Se debe realizar una evaluación similar en pacientes con SMI 7-9.

Reparación del músculo pronador cuadrado en fracturas de radio distal tratadas con fijación interna por abordaje palmar: una revisión sistemática y metaanálisis / Repair of the pronator quadratus muscle in distal radius fractures treated with internal fixation through a palmar approach: a systematic review and meta-analysis

Introducción: el músculo pronador cuadrado funciona como un estabilizador dinámico de la articulación radiocubital distal. Su reparación posterior a la fijación interna con placa de bloqueo volar en fracturas distales del radio es controvertida. Objetivo: determinar si la reparación del músculo pronador cuadrado influye en los resultados clínicos y funcionales de pacientes con fractura de radio distal que se sometieron a reducción abierta y fijación interna con placa de bloqueo volar. Materiales y métodos: se realizó una revisión sistemática y metanálisis. Las bases de datos analizadas fueron PubMed/Medline, Embase y Bireme/Lilacs (búsqueda realizada hasta el 20 de febrero del año 2023). Los términos de búsqueda fueron: distal radius fracture AND volar plate AND pronator quadratus. Se determinó la calidad metodológica según el manual de revisiones Cochrane. Resultados: en total se incluyeron 4 ensayos clínicos aleatorizados de adecuada calidad metodológica, lo cual corresponde al análisis de 213 participantes. Existen mejores resultados en la puntuación DASH a los 12 meses de seguimiento en el grupo de no reparación del músculo pronador cuadrado DM 2,8 [IC 95%: 0,51;5,10]. No hubo diferencias significativas al año de seguimiento en las puntuaciones de dolor, rangos de movilidad de la muñeca, fuerza de agarre e incidencia de complicaciones. Conclusión: no existe evidencia que sustente la reparación rutinaria del músculo pronador cuadrado posterior a la fijación interna con placa de bloqueo volar en las fracturas de radio distal. (AU)

Introduction: the pronator quadratus muscle functions as a dynamic stabilizer of the distal radioulnar joint, and its repair after internal fixation with volar locking plate in distal radius fractures is controversial. Objective: to determine whether the repair of the pronator quadratus muscle influences the clinical and functional outcomes of patients with distal radius fracture who underwent open reduction and internal fixation with volar locking plate. Materials and methods: a systematic review and meta-analysis were conducted. The analyzed databases were Pubmed/Medline, Embase, and Bireme/Lilacs (search performed until February 20th, 2023). The search terms were distal radius fracture AND volar plate AND pronator quadratus. Methodological quality was determined according to the Cochrane Reviewer's Handbook. Results: a total of 4 randomized clinical trials of adequate methodological quality, corresponding to the analysis of 213 participants, were included. Better DASH scores were observed at 12 months of follow-up in the non-repair group of the pronator quadratus muscle, with a mean difference of 2.8 [95% CI 0.51; 5.10]. There were no significant differences at one-year follow-up in pain scores, wrist mobility ranges, grip strength, and incidence of complications. Conclusion: there is no evidence to support routine repair of the pronator quadratus muscle after internal fixation with volar locking plate in distal radius fractures. (AU)

Use of Smartphones as a Risk Factor for the Development of Morbidities in the Wrist and Fingers / Uso de smartphones como fator de risco para o desenvolvimento de morbidades no punho e nos dedos*

Abstract Objective To investigate the long-term use of smartphones as a risk factor for the development of morbidities in the wrist and fingers. Methods The present is a descriptive, exploratory study with a quantitative approach based on injury prevalence among one hundred smartphone users of a private university in the state of Pernambuco, Northeastern Brazil. We applied a semi-structured questionnaire and the Boston Carpal Tunnel Questionnaire (BCTQ), as well as the Visual Analog Scale (VAS) and the Finkelstein, Phalen, reverse Phalen, and Tinel signal tests on the wrist. Results The average of the sample was of 22.73 years, with a prevalence of single, right-handed female participants. Most of them had been using smartphones for 5 to 10 years, and 85% reported discomfort in the wrist and fingers while using the device, with numbness as the most prevalent symptom. Most clinical tests were negative, and the Finklestein test showed greater positivity. The BCTQ is composed of a symptom severity scale (S scale) and a functional status scale (F scale): the overall score on the S scale was of 1.61, indicating mild to moderate symptoms, and the F scale revealed that the symptoms did not affect functionality. Conclusion There was a significant correlation between the length of use of smartphones and discomfort in the wrist and fingers; as such, smartphones are a risk factor for the development of morbidities.

Resumo Objetivo Investigar o uso de smartphones em longo prazo como fator de risco para o desenvolvimento de morbidades no nível do punho e dos dedos. Métodos Realizou-se um estudo descritivo, exploratório, de abordagem quantitativa, para a obtenção de medidas de prevalência com cem acadêmicos usuários de smartphones de uma faculdade privada localizada no sertão de Pernambuco. Foram aplicados um questionário semiestruturado e o Questionário de Síndrome doTúnel do Carpo de Boston (Boston Carpal Tunnel Questionnaire, BCTQ, na sigla em inglês), além da Escala Visual Analógica (EVA) e dos testes de Finkesltein, Phalen, Phalen reverso, e sinal de Tinel no punho. Resultados A idade média da amostra foi de 22,73 anos, com prevalência de solteiros, de destros, e do sexo feminino. O tempo de uso do smartphone indicado pela maioria dos participantes era entre 5 e 10 anos, e 85% da amostra relatou já ter sentido desconforto no punho e nos dedos durante o uso do aparelho, sendo a dormência o sintoma mais prevalente. Com relação aos testes clínicos, houve prevalência de resultados negativos, e o de Finklestein apresentou maior positividade. Quanto ao BCTQ, dividido em duas escalas, uma de gravidade dos sintomas (escala G) e uma de estado funcional (escala F), a média geral das pontuações foi de 1,61 na escala G, o que indica sintomas de leve a moderados, já a escala F revelou que os sintomas não afetavam a funcionalidade. Conclusão Foi possível observar uma correlação significativa entre o tempo de uso dos smartphones e a presença de desconforto no punho e nos dedos, o que indica que se trata de um fator de risco para o desenvolvimento de morbidades.

Late consolidation of the scaphoid. Case report and literature review / Consolidación tardía del escafoides. Reporte de un caso y revisión de la literatura

Abstract: Scaphoid fractures are a common wrist injury accounting for 2-7% of all adult fractures. Nonunion is described in 5-12% of cases leading to osteoarthritis. Several classifications have been developed focused on this pathology and its complication. We present a case of a 28 years old male patient with a scaphoid fracture and nonunion who spontaneously consolidates without treatment. We performed a literature review to recognize this pathology, its common evolution and possible treatment options.

Resumen: Las fracturas de escafoides son una lesión frecuente de la muñeca y representan de 2-7% de todas las fracturas en adultos. La no unión se describe en 5-12% de los casos y conduce a la osteoartritis. Se han desarrollado varias clasificaciones centradas en esta patología y su complicación. Presentamos el caso de un paciente varón de 28 años con fractura y no unión de escafoides que consolida espontáneamente sin tratamiento. Realizamos una revisión bibliográfica para reconocer esta patología, su evolución habitual y las posibles opciones de tratamiento.

Radial-sided wrist pain differentials: presentation, pathoanatomy, diagnosis, and management / Dolor radial de muñeca: diferencias en la presentación, anatomía patológica, diagnóstico y tratamiento

Abstract Patients with radial-sided wrist pain can be challenging to diagnose and treat. Various physicians, including emergency physicians, primary care physicians, and orthopedic or plastic surgeons can be involved in the initial and subsequent evaluation. We delve into the differential diagnosis of radial-sided wrist pain including osteoarticular, ligament, tendon, nerve, and other pathologies. We review the physical exam findings, diagnostic studies, and treatment options for each pathology based on recent and updated literature.

Resumen Los casos de pacientes que presentan dolor radial de muñeca pueden ser de difícil diagnóstico y tratamiento. Varias especialidades médicas, incluidas emergentólogos, médicos de atención primaria, cirujanos ortopédicos o cirujanos plásticos, pueden estar involucrados desde el inicio de la patología y subsecuente evaluación. Pro fundizamos aquí en el diagnóstico diferencial del dolor radial de muñeca incluyendo las debidas a patologías osteoarticulares, ligamentosas, tendinopatías y neuropatías, entre otras. Esta revisión incluye examen físico, estudios diagnósticos, y opciones terapéuticas para cada condición con base en la literatura reciente y actualizada.

Percutaneous Suspensory Stabilization of Chronic Distal Radioulnar Joint (DRUJ) Dislocation Using an Adjustable Loop Endobutton Construct: Case Report / Fixação suspensiva percutânea de luxação crônica da articulação radioulnar distal (ARUD) usando um dispositivo de endobutton de laço ajustável: Relato de caso

Abstract Chronic distal radioulnar joint (DRUJ) dislocation has been treated historically with complex osteotomies and reconstructive procedures, often resulting in intractable stiffness and loss of function. It is desirable to use a technique of fixation that will not only restore the wrist biomechanics but also be cosmetically appealing to the individual. We present a novel technique of reduction and fixation of a chronically dislocated DRUJ in a 26-year-old male using a minimally invasive approach, with successful restoration of DRUJ function and no postoperative complications.

Resumo Luxação crônica da articulação radioulnar distal (ARUD) foi tratada historicamente com osteotomias complexas e procedimentos reconstrutivos, geralmente resultando em rigidez intratável e perda de função. É desejável usar uma técnica de fixação que não apenas restaure a biomecânica do punho, mas também seja esteticamente atraente para o indivíduo. Apresentamos uma nova técnica de redução e fixação de uma ARUD deslocada cronicamente em um homem de 26 anos, usando uma abordagem minimamente invasiva, com restauração bem-sucedida da função da ARUD e sem complicações pós-operatórias.

Abordajes quirúrgicos para el extremo distal del radio

Introducción: Las fracturas del radio distal se encuentran entre las más comunes y deben incrementarse por su relación con el envejecimiento poblacional. Su tratamiento quirúrgico ha aumentado gracias a un mejor conocimiento de la anatomía, la introducción de nuevos implantes y los beneficios de la movilización precoz. Objetivo: Revisar la anatomía regional del radio distal, la articulación de la muñeca y los actuales abordajes quirúrgicos para esta región. Métodos: Se realizó una búsqueda en PubMed con los términos: anatomía del radio distal, anatomía de la muñeca, abordajes quirúrgicos para radio distal, fracturas de radio distal. Se revisaron artículos del servicio ClinicalKey e Hinari. Desarrollo: El extremo óseo distal del radio posee 5 superficies; los tendones y numerosas estructuras vasculonerviosas obligan a un conocimiento profundo. Existen múltiples abordajes quirúrgicos para el adecuado manejo de las fracturas del extremo distal del radio. Conclusiones: Los abordajes quirúrgicos para el radio distal pueden ser volares, radiales y dorsales. La visualización de la superficie articular se logra mejor artroscópicamente. Cada abordaje requiere una comprensión profunda de la anatomía local del radio distal para poder disecar y exponer las fracturas.

Introduction: Fractures of the distal radius are among the most common and they should increase due to their relationship with population aging. Its surgical treatment has increased thanks to better knowledge of the anatomy, the introduction of new implants and the benefits of early mobilization. Objective: To review the regional anatomy of the distal radius, the wrist joint, and the current surgical approaches for this region. Methods: A PubMed search was performed using the terms distal radius anatomy, wrist anatomy, distal radius surgical approaches, distal radius fractures. Articles from the Clinical key and Hinari service were reviewed. Development: The distal bony end of the radius has 5 surfaces, the tendons and numerous neurovascular structures that require in-depth knowledge. There are multiple surgical approaches for the proper management of fractures of the distal end of the radius. Conclusions: The surgical approaches for the distal radius can be volar, radial and dorsal. Visualization of the articular surface is best achieved arthroscopically. Each approach requires a thorough understanding of the local anatomy of the distal radius in order to dissect and expose fractures.

Spontaneous rupture of the extensor pollicis longus tendon after conservative treatment of a non-displaced distal radius fracture in an adolescent / Rotura espontánea del tendón del extensor largo del pulgar tras el tratamiento conservador de una fractura no desplazada del radio distal en un adolescente

Abstract: A spontaneous rupture of the extensor pollicis longus (EPL) tendon after a fracture of the distal radius is a known complication in adults. In contrast, there are a paucity of reports concerning EPL tendon ruptures in children and adolescents. The authors present a case of a spontaneous rupture of the EPL tendon in a 15-year-old girl after a non-displaced distal radius fracture. The patient had no predisposing factors including rheumatoid arthritis or steroid injection. During surgery, the EPL tendon was found to be ruptured at the extensor retinaculum (third compartment). Extensor indicis proprius (EIP) to EPL transfer was performed. At the 18-month follow-up, the patient was asymptomatic and showed satisfactory thumb function, with normal active extension.

Resumen: La rotura espontánea del tendón del extensor largo del pulgar (EPL) tras una fractura distal del radio es una complicación conocida en adultos. En cambio, son escasos los informes sobre roturas del tendón del EPL en niños y adolescentes. Los autores presentan un caso de rotura espontánea del tendón del EPL en una niña de 15 años tras una fractura distal del radio no desplazada. La paciente no presentaba factores predisponentes como artritis reumatoide o inyección de esteroides. Durante la intervención quirúrgica, se descubrió que el tendón del EPL estaba roto a la altura del retináculo extensor (tercer compartimento). Se realizó una transferencia del extensor indicis proprius (EIP) al EPL. A los 18 meses de seguimiento, el paciente estaba asintomático y mostraba una función satisfactoria del pulgar, con una extensión activa normal.

Anatomical and histomorphometric study of the ulnar nerve at the wrist / Estudio anatómico e histomorfométrico del nervio ulnar en la muñeca

SUMMARY: The ulnar nerve (UN) is the main nerve responsible for innervation of the intrinsic musculature of the hand. It is of great importance to have a deep anatomical knowledge of the UN. The aim of this study is to enrich the knowledge of the UN anatomy at the wrist and provide useful reference information for clinical and surgical applications. In this descriptive cross-sectional study, 44 upper limbs of fresh cadavers were evaluated. The UN, the superficial branch of the ulnar nerve (SBUN), and the deep branch of the ulnar nerve (DBUN) were evaluated. Morphometric variables were measured using a digital caliper, and samples of nervous tissue were taken to evaluate the histomorphometry. Before entering the Guyon's canal, the UN had a diameter of 3.2 ± 0.4 mm. In 36 samples (82 %) the UN presented a bifurcation pattern and in the remaining 8 samples (18 %) a trifurcation was shown. The diameter of the DBUN was 1.9 ± 0.33 mm and that of the SBUN was 1.29 ± 0.22 mm. In the bifurcation patterns, the SBUN had a trunk of 5.71 ± 1.53 mm before bifurcating into the common digital nerve (fourth and fifth fingers) and an ulnar digital collateral nerve (fifth finger). The DBUN had an area of 2.84 ± 0.7 mm2 and was made up of 8 ± 1.4 fascicles and 3595 ± 465 axons. The SBUN area was 1.31 ± 0.27 mm2, it was made up of 6 ± 1.1 fascicles and 2856 ± 362 axons. The reported findings allow the hand surgeon to improve his understanding of the clinical signs of patients with UN pathologies at the wrist level and thus achieve greater precision while planning and performing surgical approaches and dissections.

El nervio ulnar (NU) es el principal nervio responsable de la inervación de la musculatura intrínseca de la mano. Es de gran importancia tener un profundo conocimiento anatómico del NU. El objetivo de este estudio fue enriquecer el conocimiento de la anatomía del NU en la muñeca y proporcionar información de referencia útil para aplicaciones clínicas y quirúrgicas. En este estudio descriptivo transversal se evaluaron 44 miembros superiores de cadáveres frescos. Se evaluó el NU, el ramo superficial del nervio ulnar (RSNU) y el ramo profundo del nervio ulnar (RPNU). Las variables morfométricas se midieron con un caliper digital y se tomaron muestras del nervio para evaluar la histomorfometría. Antes de ingresar al canal del nervio ulnar (canal Guyon), el ONU tenía un diámetro de 3,2 ± 0,4 mm. En 36 muestras (82 %) el ONU presentó un patrón de bifurcación y en las 8 muestras restantes (18 %) se presentó una trifurcación. El diámetro del RPNU fue de 1,9 ± 0,33 mm y el del RSNU de 1,29 ± 0,22 mm. En los patrones de bifurcación, el RSNU presentó un tronco de 5,71 ± 1,53 mm antes de bifurcarse en el nervio digital común (cuarto y quinto dedo) y un nervio digital colateral ulnar (quinto dedo). El RPNU tenía un área de 2,84 ± 0,7 mm2 y estaba formado por 8 ± 1,4 fascículos y 3595 ± 465 axones. El área del RSNU fue de 1,31 ± 0,27 mm2, estaba formado por 6 ± 1,1 fascículos y 2856 ± 362 axones. Los hallazgos reportados permiten al cirujano de mano mejorar su comprensión de los signos clínicos de los pacientes con patologías del NU a nivel de la muñeca y así lograr una mayor precisión en la planificación y realización de abordajes y disecciones quirúrgicas.

Osteosynthesis of a scaphoid neck fracture with a cannulated compression screw: evaluation of 52 patients / Osteossíntese de fratura no colo do escafoide com parafuso canulado de compressão: avaliação de 52 pacientes

ABSTRACT Objective: To evaluate the effectiveness of the dorsal fixation technique with a cannulated compression screw (CCS) for transverse scaphoid neck fractures. Methods: A case series study was carried out with patients treated with a CSS between April 2014 and May 2021. The main outcome was the healing of the fracture, verified by radiographic evaluation that used images of the wrist in anteroposterior, lateral, radial deviation, ulnar deviation and oblique views, obtained in the postoperative period. Results: Fifty-two patients aged between 15 and 65 years were analyzed, of which 43 (83%) were male. Of the 52 patients, 19 (36.53%) had a right-hand injury and 33 (63.46%) had a left-hand injury. Results were excellent in 47 patients (90.38%); good in 4 patients (7.69%), with reduced mobility compared to contralateral and poor in 1 patient (1.92%), with failure of consolidation and breakage of the synthesis material. In 51 cases (99%) there was bone consolidation at the end of six months. Conclusion: Osteosynthesis with a cannulated compression screw is a safe, effective and promising method for the treatment of scaphoid neck fractures. Level of Evidence IV, Case Series.

RESUMO Objetivo: Avaliar a eficácia da técnica de fixação dorsal com parafuso canulado de compressão (CCS) para fraturas transversas do colo do escafoide. Métodos: Foi realizado um estudo de série de casos com pacientes tratados com CSS entre abril de 2014 e maio de 2021. O desfecho principal foi a consolidação da fratura, verificada por meio da avaliação radiográfica das imagens do punho em anteroposterior, perfil, desvio radial, desvio ulnar e oblíquo obtidas no pós-operatório. Resultados: Foram analisados 52 pacientes com idade entre 15 e 65 anos, sendo 43 (83%) do sexo masculino. Dos 52 pacientes, 19 (36,53%) tinham lesão na mão direita e 33(63,46%) na mão esquerda. Os resultados foram excelentes em 47 dos pacientes (90,38%); bons em quatro (7,69%), com mobilidade reduzida comparada ao membro contralateral; e ruim em um (1,92%), com falha da consolidação e quebra do material de síntese. Em 51 casos (99%) houve consolidação óssea ao final de seis meses. Conclusão: A osteossíntese com parafuso canulado de compressão é um método seguro, eficaz e promissor para o tratamento das fraturas no colo do escafoide. Nível de Evidência IV, Série de Casos.

Analysis of hitting method and wrist strength of student tennis players / Análise sobre o método de tacada e a força do pulso de tenistas estudantes / Análisis del método de golpeo y de la fuerza de la muñeca de estudiantes de tenis

ABSTRACT Introduction: Wrist joint strength is important in tennis for angle control and racquet direction. Objective: Study the changes in muscle strength in the wrist region and the characteristics of joint movement under different tennis stroke styles. Methods: 50 students from a professional tennis club team at a university were selected as study subjects, and systematic professional wrist strength training was performed in the experimental group. In contrast, routine training was performed in the control class. The experimental training lasted for six weeks. During this period, the learning time of all groups remained the same, and no additional training or learning was added. Results: The experimental group's stability increased significantly, from 1.78 ± 0.67 to 2.25 ± 1.34 before training, and backstroke strength increased significantly, from 6.21 to 10.21; total stroke score also increased from 8.02 to 12.69. Conclusion: Improving wrist strength in tennis students may improve overall sports performance. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: A força da articulação do pulso é de grande importância no esporte do tênis para controle de ângulo e a direção da raquete. Objetivo: Estudar as alterações da força muscular na região do pulso e as características de movimentação articular sob diferentes estilos de tacadas no tênis. Métodos: 50 alunos de uma equipe profissional de um clube de tênis de uma universidade foram selecionados como sujeitos de estudo e o treinamento profissional sistemático da força do pulso foi realizado no grupo experimental, enquanto o treinamento de rotina foi realizado na classe de controle. O treinamento experimental durou 6 semanas. Durante este período, o tempo de aprendizado de todos os grupos permaneceu o mesmo, e nenhum treinamento ou aprendizado adicional foi acrescentado. Resultados: A estabilidade do grupo experimental aumentou significativamente, de 1,78 ± 0,67 para 2,25 ± 1,34 antes do treinamento, e a força de tacada de costas aumentou significativamente, de 6,21 para 10,21; a pontuação total da tacada também aumentou de 8,02 para 12,69. Conclusão: A melhoria da força no pulso dos estudantes de tênis pode aprimorar o desempenho esportivo global. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: La fuerza de la articulación de la muñeca es de gran importancia en el deporte del tenis para el control del ángulo y la dirección de la raqueta. Objetivo: Estudiar los cambios de la fuerza muscular en la región de la muñeca y las características del movimiento articular bajo diferentes estilos de golpe de tenis. Métodos: Se seleccionaron 50 estudiantes de un equipo profesional de un club de tenis universitario como sujetos de estudio y se realizó un entrenamiento profesional sistemático de la fuerza de la muñeca en el grupo experimental, mientras que en la clase de control se realizó un entrenamiento rutinario. El entrenamiento experimental duró 6 semanas. Durante este periodo, el tiempo de aprendizaje de todos los grupos siguió siendo el mismo y no se añadió ninguna formación o aprendizaje adicional. Resultados: La estabilidad del grupo experimental aumentó significativamente, de 1,78 ± 0,67 a 2,25 ± 1,34 antes del entrenamiento, y la fuerza en la brazada de espalda aumentó significativamente, de 6,21 a 10,21; la puntuación total de brazada también aumentó de 8,02 a 12,69. Conclusión: Mejorar la fuerza de la muñeca en los estudiantes de tenis puede mejorar el rendimiento deportivo en general. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Evaluation of outcomes in intervention randomized clinical trials - distal radius fractures / Avaliação dos desfechos em ensaios clínicos randomizados de intervenção - fraturas distais do rádio

ABSTRACT Objectives: Describe the frequency and types of outcomes in randomized clinical trials (RCT) of intervention for distal radius fractures, analyze how confusing outcome presentations can lead to misinterpretations, and suggest strategies to improve the reader's understanding of the decision-making process. Methods: A retrospective study was conducted through a systematized search on the PubMed® database in the last 10 years, in which only intervention RCT was included for distal radius fractures, and outcomes were analyzed. Results: Of the primary outcomes analyzed in the 75 selected articles, 46.6% were classified as clinical outcomes, 20% as surrogate, 30.6% as composite, 1.3% as complex scales, and 1.3% as safety outcomes. 34.7% of the articles did not report adverse events. Conclusion: The presentation of outcomes with little clinical relevance represented more than half of the sample (53.4%) - such studies can harm the reader since they confuse the interpretation of scientific evidence; the Core Outcome Measures in Effectiveness Trials (COMET) initiative could help health professionals in understanding and selecting the most appropriate therapeutic interventions for patients. Level of Evidence III; Retrospective comparative study .

RESUMO Objetivos: Descrever a frequência e os tipos de desfechos em ensaios clínicos randomizados (RCT) de intervenção para fraturas distais do rádio, analisar como apresentações confusas de desfechos podem levar a interpretações equivocadas e sugerir estratégias para melhorar a compreensão do leitor sobre o processo de tomada de decisão. Métodos: Foi realizado estudo retrospectivo mediante busca sistematizada na base de dados PubMed® nos últimos 10 anos, na qual foram incluídos apenas RCT de intervenção para fraturas do segmento distal do rádio, cujos desfechos foram analisados. Resultados: Dos desfechos primários analisados nos 75 artigos selecionados, 46,6% foram classificados como desfechos clínicos, 20% como substitutos, 30,6% como compostos, 1,3% como escalas complexas e em 1,3% como desfechos de segurança. 34,7% dos artigos não reportaram eventos adversos. Conclusão: A apresentação de desfechos com pouca relevância clínica representou mais da metade da amostra (53,4%) - tais estudos podem prejudicar o leitor, uma vez que confundem a interpretação das evidências científicas; a iniciativa Core Outcome Measures in Effectiveness Trials (COMET) auxilia os profissionais de saúde na compreensão e seleção das intervenções terapêuticas mais adequadas para os pacientes. Nível de Evidência III; Estudo retrospectivo comparativo .

Effect of wrist wrap in handgrip strength in crossfit / Influência da munhequeira na força de preensão manual em praticantes de crossfit

ABSTRACT Objectives: Analyze wrist wrap influence on the values of maximum handgrip strength and dynamic resistance. Methods: A controlled randomized cross-over trial including 54 Crossfit participants randomly assigned to two groups. Group 1 began the series of tests with control wrapping, and Group 2 started with functional wrapping. Alternate series of four dynamic grip strength resistance tests were performed, and the resistance and fatigue values were calculated. Results: The values obtained from the grip tests did not indicate any effect from the wrist wrap for an increase in maximum grip strength (35.7 vs. 35.6 kg; p=0.737) or greater endurance (78.2 vs. 77.8%; p=0.549). Fatigue was also equal in both groups (mean differences between the groups: 0.1 kg, CI= -0.7-0.8; p=0.779). Conclusion: The hypothesis that using a wrist wrap increases maximum strength and dynamic handgrip endurance was rejected in this study. Evidence Level I; Randomized control trial .

RESUMO Objetivos: Analisar a influência do uso da munhequeira no valor máximo de força e na resistência dinâmica de preensão palmar. Métodos: Foi feito um ensaio controlado randomizado cruzado (cross-over) incluindo 54 praticantes de Crossfit. Os participantes foram alocados em dois grupos de forma aleatorizada. O grupo 1 iniciou a bateria de testes com enfaixamento placebo e o grupo 2 iniciou com enfaixamento funcional. Séries alternadas de quatro testes dinâmicos de resistência foram realizadas e os valores de resistência e fadiga foram calculados. Resultados: Os resultados apontaram para uma ausência de efeito do enfaixamento do punho tanto para um suposto aumento da força máxima de preensão (35,7 vs 35,6 kg; p=0,737) quanto para uma maior resistência (78,2 vs 77,8%; p=0,549). A fadiga também foi igual entre os dois grupos (média das diferenças entre os grupos: 0,1kg, CI: -0,7 - 0,8; p=0,779). Conclusão: A hipótese de que o uso da munhequeira aumenta o valor máximo de força e a resistência dinâmica de preensão palmar foram rejeitadas neste estudo. Nível de evidência I; Estudo clínico randomizado .

Association between wrist pain and awkward postures among workers in 10 key industries / 环境与职业医学

Background Prolonged awkward postures during occupational activities can lead to excessive musculoskeletal load on the wrist of workers and symptoms such as wrist pain or discomfort. Objective To survey the prevalence of wrist pain among workers in 10 key industries and analyze its correlation with wrist working postures. Methods By using stratified cluster sampling method, workers from 10 key industries, such as footwear manufacturing industry, shipbuilding manufacturing industry, and automobile manufacturing industry, were selected from seven regions in North China, East China, Central China, South China, Southwest China, Northwest China, and Northeast China. The demographic information, wrist working postures, pain in wrist of the workers were collected through a cross-sectional survey. Pearson χ2 test was used to compare prevalence by selected factors, trend χ2 test for between group comparison, and unconditional logistic regression models for the association of wrist working postures with wrist pain. Results There were 64052 workers enrolled in this survey, and 56286 provided valid questionnaires (the effective rate was 87.8%). According to the survey, the prevalence of wrist pain was 23.3% (13112/56286), and the industries with higher prevalences were footwear manufacturing (27.1%, 1927/7106), automobile manufacturing (24.9%, 5378/21560), and shipbuilding and related equipment manufacturing (24.4%, 850/3488) industries. Finger pinching (OR=2.09, 95%CI: 1.95-2.24), frequent wrist bending (OR=2.03, 95%CI: 1.92-2.15), fixed wrist bending (OR=1.77, 95%CI: 1.69-1.85), wrist on hard edge (OR=1.34, 95%CI: 1.28-1.40), and arms over shoulders (OR=1.11, 95%CI: 1.05-1.17) increased the risk of reporting wrist pain. Conclusion Awkward postures are related to wrist pain among workers in selected 10 key industries. The related factors are wrist on hard edge, frequent wrist bending, finger pinching, fixed wrist bending, and arms over shoulders.

Influencing factors and attribution analysis of hand/wrist musculoskeletal disorders among welders in an automobile factory / 环境与职业医学

Background Welders in automobile manufacturers are prone to hand/wrist musculoskeletal disorders (MSDs), which seriously affect workers' physical and mental health. Objective To investigate the factors influencing hand/wrist MSDs of welders in an automobile factory and the population attributable risk percentage (PARP). Methods Five branches of an automobile factory were selected by convenient sampling method, and all qualified welders in the selected branches were enrolled as research participants. The Chinese Musculoskeletal Disorders Questionnaire was used to collect information such as general characteristics of welders, presentation of MSDs in the wrists and hands, and selected ergonomic factors. Log-binomial model in the SAS program was used to calculate the prevalence ratio (PR) of each influencing factor and PARP. Results The prevalence rate of MSDs in the hands/wrists of welders in the automobile factory was 44.1% (345/782). The results of multiple analysis showed that female (PR=1.25, 95%CI: 1.10-1.44), being very tired after work (versus not tired, PR=2.22, 95%CI: 1.16-4.25), twisting wrists (PR=1.44, 95%CI: 1.19-1.74), insufficient operating space (PR=1.22, 95%CI: 1.07-1.40), and holding or pinching objects by hands (PR=1.58, 95%CI: 1.18-2.12) increased the risk of reporting hand/wrist MSDs symptoms. The PARP of major occupational risk factors was: holding or pinching objects by hands, 32.46%; twisting wrists, 21.50%; being very tired after work, 15.28%; and insufficient operating space, 8.18%. Conclusion The prevalence of MSDs symptoms in hands/wrists of welders in this automobile factory is high. Gender, holding or pinching objects by hands, twisting wrists, being very tired after work, and insufficient operating space are the factors affecting hand/wrist MSDs, among which holding or pinching objects by hands and twisting wrists are the priority intervention factors.