El síndrome del túnel carpiano y su abordaje terapéutico / Carpal Tunnel Syndrome and its Therapeutic Approach

Introducción: El síndrome del túnel carpiano es una de las causas más frecuentes de dolor crónico, su mayor incidencia está entre la quinta y sexta década de la vida; en Colombia tiene una alta incidencia, llegando al 14 por ciento especialmente en cierto grupo de trabajadores. El abordaje terapéutico incluye tratamiento médico y quirúrgico; en la actualidad ha sido ampliamente discutida la elección entre método endoscópico y cirugía abierta como primera línea de tratamiento. Objetivo: Desarrollar una revisión acerca de los aspectos clínicos y las diferentes opciones de abordaje terapéutico del síndrome del túnel carpiano a través de una exploración de la literatura científica existente. Métodos: Se realizó una búsqueda en las bases de datos SciELO, PubMed, ScienceDirect y Lilacs con las palabras clave indexadas en el DeCS. Conclusión: El síndrome de túnel carpiano es una entidad común con un impacto clínico importante en la vida del paciente, su sintomatología y sus complicaciones afectan las actividades diarias de quien lo padece; el abordaje terapéutico de esta enfermedad se establece comúnmente de forma escalonada, el abordaje quirúrgico es un tema ampliamente discutido; sin embargo, no hay evidencia contundente que establezca una de las opciones quirúrgicas como la definitiva(AU)

Introduction: Carpal tunnel syndrome is one of the most frequent causes of chronic pain, with its highest incidence between the fifth and sixth decades of life; in Colombia, it has a high incidence, reaching 14 percent especially in a certain group of workers. The therapeutic approach includes medical and surgical treatment; currently, the choice between the endoscopic method or open surgery as the first line of treatment has been widely discussed. Objective: To develop a review of the clinical aspects and the different options of therapeutic approach for carpal tunnel syndrome, through an exploration of the existing scientific literature. Methods: A search was carried out in the SciELO, PubMed, ScienceDirect and Lilacs databases, using the keywords indexed in the DeCS. Conclusion: Carpal tunnel syndrome is a common entity with an important clinical impact on the patient's life; its symptomatology and complications affect the daily activities of those who suffer from it. The therapeutic approach to this disease is commonly established in a stepwise manner; the surgical approach is a widely discussed topic. However, there is no conclusive evidence that establishes one of the surgical options as the definitive one/AU)

Trigger Finger or De Quervain Tenosynovitis after Surgical Treatment for Carpal Tunnel Syndrome / Dedo em gatilho ou tenossinovite de De Quervain após tratamento cirúrgico da síndrome do túnel do carpo

Abstract Objective To evaluate the open surgical treatment for carpal tunnel syndrome as a risk factor for the development of stenosing tenosynovitis that results in trigger finger and De Quervain disease. Materials and Methods A retrospective study analyzing the medical records of patients submitted to open surgical release of carpal tunnel syndrome between 2010 and 2021 in a secondary- and tertiary-level hospital. The following data were collected: pathological history, duration of the follow-up after the surgical treatment for carpal tunnel syndrome, development of trigger finger or De Quervain tenosynovitis, affected fingers, and the interval between the end of surgery and symptom onset. Results We evaluated 802 patients of both genders and with a mean age of 50.1 (±12.6) years. The mean follow-up was of 13 (±16.4) months. The mean time until the development of trigger finger was of 61.4 months, and of 73.7 months for De Quervain disease. The incidence of development of De Quervain disease was of 4.12%, and for trigger finger it was of 10.2%. The most affected digits were the thumb (47.6%), the middle (24.4%), and the ring finger (8.54%). Age was the only factor that showed an association with the risk of developing trigger finger, with an increase of 2% for each increase in age of 1 year. Conclusion The incidence rates for the development of De Quervain disease (4.12%) and trigger finger (10.2%) after the surgical treatment for carpal tunnel syndrome were like those described in the literature. Only age was a factor that influenced the development of trigger finger.

Resumo Objetivo Avaliar o tratamento cirúrgico aberto da síndrome do túnel do carpo como fator de risco para o desenvolvimento das tenossinovites estenosantes formadoras do dedo em gatilho e da doença de De Quervain. Materiais e Métodos Estudo retrospectivo com análise dos prontuários de pacientes submetidos a liberação cirúrgica aberta da síndrome do túnel do carpo entre 2010 e 2021 em hospital de níveis secundário e terciário. Os seguintes dados foram coletados: histórico patológico, tempo de acompanhamento após o tratamento cirúrgico da síndrome do túnel do carpo, desenvolvimento de dedo em gatilho ou tenossinovite de De Quervain, dedos acometidos, e tempo decorrido entre o fim da cirurgia e o aparecimento dos sintomas. Resultados Foram avaliados 802 pacientes de ambos os sexos com média de idade de 50,1 (±12,6) anos. O tempo médio de seguimento foi de 13 (±16,4) meses. O tempo médio de desenvolvimento de dedo em gatilho foi de 61,4 meses, e o da doença de De Quervain, de 73,7 meses. A incidência de desenvolvimento da doença de De Quervain foi de 4,12% e a de dedo em gatilho, de 10,2%. Os dedos mais acometidos foram o polegar (47,6%), o médio (24,4%) e o anular (8,54%). A idade foi único fator que demonstrou associação com o risco de desenvolvimento de dedo em gatilho, com aumento de 2% a cada ano a mais de idade. Conclusão As taxas de incidência de desenvolvimento de doença de De Quervain (4,12%) e de dedo em gatilho (10,2%) após tratamento cirúrgico da síndrome do túnel do carpo foram semelhantes às descritas na literatura. Apenas a idade se apresentou como fator influenciador no desenvolvimento de dedo em gatilho.

Ultrasound-Guided WALANT Technique in Carpal Tunnel Decompression Surgery* / Técnica WALANT guiada por ultrassom na cirurgia de descompressão do túnel do carpo

Abstract Carpal tunnel syndrome (CTS) is the most common compressive neuropathy in the human body. Its symptoms result from compression of the median nerve in the carpus. The treatment can be conservative, with medications and/or infiltrations that alleviate the symptoms, or surgical, which is more effective, with decompression of the median nerve by surgical section of the flexor retinaculum of the carpus. The anesthetic technique varies according to the anesthesia method: sedation, venous locoregional anesthesia and, more recently, wide-awake local anesthesia no tourniquet (WALANT), which can be performed by the surgeons themselves. The WALANT technique uses local anesthesia with a vasoconstrictor, and does not require the use of a tourniquet on the upper limb nor sedation. The median nerve block in ultrasound-guided WALANT provides better accuracy to the technique, with greater patient safety; in the present article, its use in the performance of carpal tunnel decompression is described, and the literature is reviewed.

Resumo A síndrome do túnel do carpo (STC) é a neuropatía compressiva mais comum do corpo humano. Seus sintomas decorrem da compressão do nervo mediano no carpo. O tratamento pode ser incruento, com medicações e/ou infiltrações que amenizam os sintomas, ou cruento, mais eficaz, com a descompressão do nervo mediano pela seção cirúrgicadoretináculodos flexores do carpo. A técnica anestésica varia de acordo com o serviço de anestesia: sedação, anestesia locorregional venosa e, mais recentemente, a anestesia local com o paciente acordado e sem torniquete (wide-awake local anesthesia no tourniquet, WALANT), que pode ser realizada pelo próprio cirurgião. Por utilizar anestesia local com vasoconstritor, essa técnica dispensa o uso de torniquete no membro superior e a necessidade de sedação. O bloqueio do nervo mediano na WALANT guiada por ultrassonografiaconfere melhor precisão àtécnica,e mais segurança ao paciente, e, neste artigo seu uso na realização da descompressão do túnel do carpo é descrito, e a literatura, revisada.

Diagnostic Contradictions in Carpal Tunnel Syndrome / Contradições diagnósticas na síndrome do túnel do carpo

Abstract Objective Given the divergence of opinions on the need for complementary tests such as ultrasonography (US) and electroneuromyography (ENMG) for the diagnosis of carpal tunnel syndrome (CTS), we aimed to elucidate which of them presents greater accuracy for the confirmation of the presence or not of this condition. Methods A total of 175 patients from a hand surgery outpatient clinic were clinically evaluated, and the results of clinical trials (Tinel, Phalen and Durkan), US (normal or altered), and ENMG (normal, mild, moderate and severe) were noted, crossed, and submitted to a statistical analysis to verify the agreement between them. Results with the sample had a mean age of 53 years, with a prevalence of female patients (159 cases). Of the patients with positive clinical test, 43.7% had normal US and 41.7% had no alterations on the ENMG. Negative results were found on the Tinel in 46.9%, on the Phalen in 47.4%, and on the Durkan in 39.7%. In the crossing between the results of the ENMG and those of the other diagnostic methods, there was little statistical agreement between them. Conclusion There was no agreement between the results of the clinical examinations, the US and the ENMG in the diagnosis of CTS, and there is no clinical or complementary examination for CTS that accurately determines the therapeutic approach. Level of Evidence IV, Case Series.

Resumo Objetivo Diante da divergência sobre a necessidade de exames complementares, como ultrassonografia (US) e eletroneuromiografia (ENMG) para o diagnóstico da síndrome do túnel do carpo (STC), objetivamos elucidar qual deles apresenta maior precisão na confirmação da presença ou não desta afecção. Métodos Um total de 175 pacientes de um ambulatório de cirurgia da mão foram avaliados clinicamente, e os resultados dos testes clínicos (Tinel, Phalen e Durkan), da US (normal ou alterada) e da ENMG (normal, leve, moderada e grave) foram anotados, cruzados, e submetidos a análise estatística para verificar a concordância entre eles. Resultados A idade média da amostra era de 53 anos, sendo prevalente o sexo feminino (159 casos). Dos pacientes com teste clínico positivo, 43,7% apresentavam US normal, e 41,7%, ENMG sem alterações. Foram encontrados resultados negativos no Tinel em 46,9% no Phalen em 47,4%, e no Durkan em 39,7%. No cruzamento entre a ENMG e os demais métodos diagnósticos, houve pouca concordância estatística. Conclusão Não houve concordância entre os resultados dos exames clínicos, da US e da ENMG no diagnóstico da STC, e não há exame clínico ou complementar para STC que determine a conduta terapêutica com precisão. Nível de Evidência IV, Série de Casos.

Acute Carpal Tunnel Syndrome due to Persistent Median Artery thrombosis: Case report / Síndrome do túnel do carpo aguda por trombose da artéria mediana: Relato de caso

Abstract Carpal tunnel syndrome is the most common compressive neuropathy of the upper limb, affecting ~ 4% of the general population. The clinical picture is characterized by pain and, mainly, paresthesia in the median nerve territory, of insidious onset and, in the most severe cases, loss of strength and atrophy of the thenar musculature is observed. It is an extremely common pathology in the daily practice of hand surgery, and in most cases, it can be treated with conservative methods. We present here an atypical case of carpal tunnel syndrome, of acute onset, triggered by persistent median artery (PMA) thrombosis, condition associated with distal embolization and hypoper-fusion of the limb.

Resumo A síndrome do túnel do carpo é a neuropatia compressiva mais comum do membro superior, afetando ~ 4% da população geral. O quadro clínico caracteriza-se por dor e, principalmente, parestesia no território do nervo mediano, de início insidioso e, nos casos mais graves, observa-se perda de força e atrofia da musculatura tenar. Trata-se de patologia extremamente comum na prática diária de cirurgia da mão, e na maior parte dos casos pode ser tratada com métodos conservadores. Apresentamos aqui um caso atípico de síndrome do túnel do carpo, de surgimento agudo, desencadeado pela trombose da artéria mediana persistente, quadro associado com embolização distal e hipoperfusão do membro.

An Intraindividual Comparison of Open versus Paine Retinaculotome Release for Bilateral Carpal Tunnel Syndrome / Comparação intraindividual dos resultados da liberação aberta ou com retinaculótomo de Paine na síndrome do túnel do carpo bilateral

Abstract The main purpose of this research was to do an intraindividual comparison of outcomes between the open ulnar incision (OUI) and the Paine retinaculotome with palmar incision (PRWPI) techniques in patients with bilateral carpal tunnel syndrome (CTS). The patients underwent OUI surgery on one hand and PRWPI surgery on the contralateral hand. The patients were evaluated with the Boston carpal tunnel questionnaire, visual analogue scale for pain, palmar grip strength, and fingertip, key, and tripod pinch strengths. Both hands were examined in the preoperative and postoperative periods after 2 weeks, 1 month, and 3 and 6 months. Eighteen patients (36 hands) were evaluated. The symptoms severity scale (SSS) scores were higher, in the preoperative period, in the hands that underwent surgery with PRWPI (p-value =0,023), but lower in the 3rd month postoperative (p-value = 0.030). The functional status scale (FSS) scores were lower in the periods of 2 weeks, 3 months, and 6 months (p-value = 0,016) on the hands that underwent surgery with PRWPI. In a different two-group module study, the PRWPI group presents the SSS scores average on the 2nd week and 1st month, and the FSS scores average on the 2nd week, less 0.8 and 1.2 points respectively comported to open group. The hands that underwent surgery with PRWPI presented significantly lower SSS scores at 3 months postoperative, and lower FSS scores at 2 weeks, and 3 and 6 months postoperative, compared to open surgery group.

Resumo O principal objetivo desta pesquisa foi fazer uma comparação intraindividual dos resultados entre as técnicas de incisão ulnar aberta e retinaculótomo de Paine com incisão palmar em pacientes com síndrome do túnel do carpo (STC) bilateral. Os pacientes foram submetidos à cirurgia aberta em uma mão e cirurgia com retinaculótomo de Paine na mão contralateral. Os pacientes foram avaliados com o Boston carpal tunnel questionnaire, escala visual analógica para dor e força de preensão palmar, pinça lateral, pinça polpa-polpa e trípode. As duas mãos foram examinadas antes da cirurgia e 2 semanas, 1 mês, 3 e 6 meses após a cirurgia. Dezoito pacientes (36 mãos) foram avaliados. As pontuações da escala de gravidade dos sintomas (EGS) foram maiores no pré-operatório nas mãos submetidas à cirurgia com retinaculótomo de Paine (p = 0,023), mas menores no 3° mês após o procedimento (p = 0,030). As pontuações da escala de estado funcional (EEF) foram menores às 2 semanas, 3 meses e 6 meses (p = 0,016) nas mãos submetidas à cirurgia com retinaculótomo de Paine. Em um estudo de módulo de diferença de dois grupos, o grupo submetido à cirurgia com retinaculótomo de Paine apresentou pontuações médias de EGS na 2ª semana e 1° mês e de EEF na segunda semana inferiores a 0,8 e 1,2 pontos, respectivamente, em comparação ao grupo submetido ao procedimento aberto. As mãos submetidas à cirurgia com retinaculótomo de Paine apresentaram escores significativamente menores de EGS em 3 meses e de EEF em 2 semanas, e aos 3 e 6 meses após a cirurgia em comparação a técnica aberta.

Síndromes compresivos del nervio mediano. Revisión y actualización de la bibliografía / Median nerve compression syndromes. Literature review and update

El nervio mediano desciende por el brazo y, en el codo, comienza a atravesar estructuras que pueden generar compresión, como el ligamento de Struthers, el lacertus fibrosus, el pronador redondo, el flexor superficial de los dedos. Finalmente, en la muñeca, se encuentra otro sitio de compresión producido por el ligamento transverso del carpo. Todas estas estructuras pueden provocar signos y síntomas de atrapamiento nervioso y favorecer el deterioro funcional del nervio. Nuestro objetivo es dar a conocer una actualización sobre estos sitios de atrapamiento del nervio mediano, y cómo realizar un diagnóstico preciso e indicar un trata-miento adecuado. Nivel de Evidencia: IV

The median nerve is a nervous structure that begins to cross structures at the level of the elbow that might cause compression. The Struthers ligament, lacertus fibrosus, pronator teres, and flexor digitorum superficialis are among them. Finally, the transverse carpal ligament creates another compression site in the wrist. All these structures can develop pathological signs and symptoms of nerve entrapment, which favors nerve functional degradation. Our objective is to provide an update on these median nerve entrap-ment sites, as well as information on how to establish an accurate diagnosis and provide adequate treatment. Level of Evidence: IV

Failure factors for carpal tunnel syndrome surgical treatment: When and how to perform a revision carpal tunnel decompression surgery / Fatores de insucesso do tratamento cirúrgico da síndrome do túnel do carpo: Quando e como revisar a cirurgia de descompressão do túnel do carpo

Abstract Despite being a procedure widely used all over the world with high rates of symptom remission, surgical treatment of carpal tunnel syndrome may present unsatisfactory outcomes. Such outcomes may be manifested clinically by non-remission of symptoms, remission of symptoms with recurrence a time after surgery or appearance of different symptoms after surgery. Different factors are related to this unsuccessful surgical treatment of carpal tunnel syndrome. Prevention can be achieved through a thorough preoperative clinical evaluation of the patient. As such, the surgeon will be able to make differential or concomitant diagnoses, as well as determine factors related to patient dissatisfaction. Perioperative factors include the correct identification of anatomical structures for complete median nerve decompression. Numerous procedures have been described for managing postoperative factors. Among them, the most common is adhesion around the median nerve, which has been treated with relative success using different vascularized flaps or autologous or homologous tissue coverage. The approach to cases with unsuccessful surgical treatment of carpal tunnel syndrome is discussed in more detail in the text.

Resumo Apesar de ser um procedimento amplamente utilizado em todo o mundo e com elevadas taxas de remissão dos sintomas, o tratamento cirúrgico da síndrome do túnel do carpo pode apresentar resultados não satisfatórios ao paciente. Esse resultado não satisfatório pode se manifestar clinicamente pela não remissão dos sintomas, remissão dos sintomas mas recorrência desses após um período de tempo da cirurgia ou aparecimento de diferentes sintomas após a cirurgia. Diferentes fatores estão relacionados a esse insucesso do tratamento cirúrgico da síndrome do túnel do carpo (ITCSTC). A prevenção pode ser conseguida por meio de minuciosa avaliação clínica do paciente no período pré-operatório. Dessa forma o cirurgião poderá fazer diagnósticos diferenciais ou diagnósticos concomitantes, assim como identificar fatores ligados a insatisfação do paciente. Os fatores per-operatórios incluem a correta identificação das estruturas anatômicas para completa descompressão do nervo mediano. Inúmeros procedimentos têm sido descritos para o tratamento dos fatores que ocorrem no período pós-operatório. Desses o mais comum, a formação de aderências em torno do nervo mediano, tem sido tratado com relativo sucesso utilizando diferentes retalhos vascularizados ou cobertura com o uso de tecido autólogo ou homólogo. Descreveremos a abordagem do ITCSTC com maiores detalhes no texto.

Prevalence of Anatomical Variations in Patients with Carpal Tunnel Syndrome Undergoing Classical Open Carpal Tunnel Release / Prevalência de variações anatômicas encontradas em pacientes com síndrome do túnel do carpo submetidos a liberação cirúrgica por via aberta clássica

Abstract Objective To evaluate the prevalence of anatomical variations encountered in patients with carpal tunnel syndrome who underwent carpal tunnel classical open release. Methods A total of 115 patients with a high probability of clinical diagnosis for carpal tunnel syndrome and indication for surgical treatment were included. These patients underwent electroneuromyography and ultrasound for diagnostic confirmation. They underwent surgical treatment by carpal tunnel classical open release, in which a complete inventory of the surgical wound was performed in the search and visualization of anatomical variations intra- and extra-carpal tunnel. Results The total prevalence of anatomical variations intra- and extra-carpal tunnel found in this study was 63.5% (95% confidence interval [CI]: 54.5-72.4). The prevalence of the carpal transverse muscle was 57.4% (95% CI: 47.8-66.6%), of the bifid median nerve associated with the persistent median artery was 1.7% (95% CI: 0.0-4.2%), and the median bifid nerve associated with the persistent median artery and the transverse carpal muscle was 1.7% (95% CI: 0.0-4.2%). Conclusion The most prevalent extra-carpal tunnel anatomical variation was carpal transverse muscle. The most prevalent intra-carpal tunnel anatomical variation was median bifid nerve associated with the persistent median artery. The surgical finding of an extra-carpal tunnel anatomical variation, such as the transverse carpal muscle, may indicate the presence of other associated carpal intra tunnel anatomical variations, such as the bifid median nerve, persistent median artery, and anatomical variations of the recurrent median nerve branch.

Resumo Objetivo Avaliar a prevalência de variações anatômicas encontradas em pacientes com síndrome do túnel do carpo submetidos a liberação cirúrgica por via aberta clássica. Métodos Foram incluídos um total de 115 pacientes com alta probabilidade de diagnóstico clínico de síndrome do túnel do carpo, com indicação para o tratamento cirúrgico. Estes pacientes realizaram eletroneuromiografia e ultrassonografia para confirmação diagnóstica. Foram submetidos ao tratamento cirúrgico por via aberta clássica, no qual foi realizado um inventário completo da ferida operatória na busca e visualização de variações anatômicas intra e extra túnel do carpo. Resultados A prevalência total das variações anatômicas intra e extra túnel do carpo encontradas neste estudo foi de 63,5% (intervalo de confiança [IC]95%: 54,5-72,4%). A prevalência do músculo transverso do carpo foi de 57,4% (IC95%: 47,8-66,6%), do nervo mediano bífido associado à artéria mediana persistente foi de 1,7% (IC95%: 0,0-4,2%) e do nervo mediano bífido associado à artéria mediana persistente e ao músculo transverso do carpo foi de 1,7% (IC95%: 0,0-4,2%). Conclusão A variação anatômica extra túnel do carpo mais prevalente foi o músculo transverso do carpo e a variação anatômica intra túnel do carpo mais prevalente foi o nervo mediano bífido associado à artéria mediana persistente. O achado cirúrgico de uma variação anatômica extra túnel do carpo, como o músculo transverso do carpo, pode nos indicar a presença de outras variações anatômicas intra túnel do carpo associadas, como nervo mediano bífido, artéria mediana persistente e variações anatômicas do ramo recorrente do nervo mediano.

Anestesia local con epinefrina, sin manguito hemostático, para la liberación del túnel carpiano. Estudio comparativo de dos variantes técnicas en 89 casos / WALANT in carpal tunnel release. Comparative study of two technical variants in 89 cases

Objetivo: Evaluar la eficacia intra- y posoperatoria, y la comodidad para el paciente de dos variantes de la anestesia en dos grupos con síndrome del túnel carpiano. Materiales y Métodos: Estudio descriptivo, comparativo, retrospectivo, observacional mediante un cuestionario telefónico de 12 ítems sobre la anestesia local sin manguito. Se incorporó a pacientes con síndrome del túnel car-piano operados entre 2008 y 2019, mediante un miniabordaje abierto, y se los dividió en: grupo 1: lidocaína al 2% más bupivacaína al 0,5% más epinefrina 1:200.000 más sedación ligera (n = 32) y grupo 2: lidocaína al 2% más epinefrina 1:200.000 (n = 57). Resultados: Se evaluó a 89 pacientes (media de edad 66.9 años). Todos se mostraron satisfechos y confirmaron que volverían a elegir este procedimiento. No hubo diferencias significativas en la comodidad o el posible desarrollo de síntomas intra- o posoperatorios entre ambos grupos. La permanencia posoperatoria fue de 1-3 h, sin hospitalización. El sangrado fue mínimo. Conclusiones: La liberación del túnel carpiano bajo anestesia local más epinefrina, sin manguito hemostático, resultó segura y sin complicaciones. Los pacientes no refirieron dolor local intraoperatorio ni posoperatorio inmediato, ni en el sitio del torniquete. La permanencia en el centro asistencial fue breve. La estancia corta y la menor cantidad de elementos empleados (anestésicos, manguito) implican una reducción de los costos del procedimiento. Si bien es recomendable la presencia de un anestesiólogo, puede llegar a realizarse en ámbitos adecuados sin él. No se recomienda su empleo sin estudios prequirúrgicos ni fuera del quirófano. Nivel de Evidencia: III

Objective: To evaluate the intraoperative and postoperative efficacy and comfort of two variants of anesthesia in two groups with carpal tunnel syndrome (CTS). Materials and Methods: Descriptive, comparative, retrospective, observational study using a 12-item telephone questionnaire on local anesthesia without a tourniquet. We included patients with CTS who underwent surgery between 2008 and 2019 with a mini-open approach and divided them into two groups: 1) 2% lidocaine plus 0.5% bupivacaine plus 1:200,000 epinephrine plus light sedation (n = 32) and 2) 2% lidocaine plus epinephrine 1:200,000 (n = 57). Results: 89 patients were evaluated (mean age 66.9 years). All patients were satisfied and confirmed they would choose this procedure again. There were no significant differences in comfort or the possible development of intra- or postoperative symptoms between the two groups. The postoperative stay was 1-3 hours; hospitalization was not required. The bleeding was minimal. Conclusion: Carpal tunnel release under local anesthesia with lidocaine + epinephrine, without a tourniquet, has proven to be a safe procedure with no complications. The patients did not complain of local immediate intraoperative or postoperative pain or pain at the site of the tourniquet. The stay in the healthcare facility was shorter. The short stay and the fewer elements used (anesthetics, tourniquet) imply a reduction in the costs of the procedure. Though the presence of an anaesthesiologist is recommended, the procedure can be performed in appropriate settings without one. We do not recommend its use without preoperative studies or outside the operating room. Level of Evidence: III

Túnel carpiano con anestesia local versus WALANT / Carpal tunnel with local anesthesia versus WALANT

Objetivo: Las cirugías con WALANT han ganado gran popularidad hoy en día. La ventaja principal que ofrece esta técnica es la de prescindir del torniquete y así eliminar las molestias que este genera. Nuestra hipótesis es que la descompresión del túnel carpiano con anestesia local y manguito neumático, realizada por un cirujano experimentado, en un tiempo quirúrgico corto, permite obtener similares resultados que con la cirugía con WALANT. materiales y métodos:Se diseñó un estudio de cohortes prospectivo comparativo clínico. Se incluyeron 23 pacientes (30 manos) con síndrome del túnel carpiano. Se asignó a los pacientes en forma aleatorizada, a 2 grupos: grupo 1, operados con anestesia local y grupo 2, operados con WALANT. Se realizó un análisis estadístico. Resultados:Todas las variables mostraron diferencias estadísticamente significativas respecto a los valores preoperatorios para los dos grupos. Respecto a la relación entre los dos grupos, los resultados funcionales de dolor y grado de satisfacción posoperatorios no mostraron diferencias con significancia estadística. Conclusiones: En nuestro estudio, la descompresión del túnel carpiano con anestesia local y torniquete y la realizada con WALANT arrojaron similares resultados. En cirujanos con experiencia posiblemente la anestesia local con torniquete sea suficiente para realizar el procedimiento, y así evitar las bajas, pero complejas complicaciones de la epinefrina. Nivel de Evidencia: II

Objective: Surgeries with the WALANT technique have recently become popular. The main advantage of this technique is that it avoids using the tourniquet and eliminates the discomfort it generates. We hypothesize that carpal tunnel decompression with local anesthesia and a pneumatic tourniquet, performed by an experienced surgeon in a short surgical time, allows us to obtain similar outcomes to the WALANT technique surgery. Materials and methods: We designed a prospective clinical comparative cohort study. We included twenty-three patients (30 hands) with carpal tunnel syndrome. Two groups of patients were randomized. Group 1 consisted of patients operated on with local anesthesia, and Group 2 included those operated on with the WALANT technique. We carried out a statistical analysis. Results: All the variables showed statistically significant differences concerning the preoperative values for the two groups. Regarding the relationship between those two groups, the functional outcomes of pain and degree of postoperative satisfaction did not show statistically significant differences. Conclusions: In our study, carpal tunnel decompression performed with local anesthesia with a tourniquet and those achieved with the WALANT technique had similar outcomes. In the hands of experienced surgeons, local anesthesia with a tourniquet may be sufficient to perform the procedure, thus avoiding the few but complex complications of epinephrine. Level of Evidence: II

Computer Vision Syndrome: Will the Pandemic Lead to Eye Problems for Dentists?

ABSTRACT Over the past year and a half dental education has been conducted primarily online due to the SARS-CoV-2 pandemic. During the pandemic, we have spent many hours a day on our computers, mobile phones, and tablets to gather information and participate in online seminars and classrooms. Health consequences resulting from the overuse of these devices include carpal tunnel syndrome as well as computer vision syndrome (CVS). Computer vision syndrome, also known as digital eye strain, has several associated features such as eye burning, strained vision, dry eye, blurred vision, and associated neck and shoulder pain. Several predisposing factors have been linked with CVS, but often this problem gets ignored. The management of this syndrome is aimed at educating dentists on computer use, position, and the surrounding environment. Considering all this, we must ensure that we spend some time away from these devices every day to avoid any significant vision problems. The objective of preparing this manuscript was to provide a brief overview of the increased prevalence of computer vision syndrome and its associated features.

WALANT versus intravenous regional anesthesia for carpal tunnel syndrome: a randomized clinical trial

ABSTRACT BACKGROUND: There are several anesthetic techniques for surgical treatment of carpal tunnel syndrome (CTS). Results from this surgery using the "wide awake local anesthesia no tourniquet" (WALANT) technique have been described. However, there is no conclusive evidence regarding the effectiveness of the WALANT technique, compared with the usual techniques. OBJECTIVE: To evaluate the effectiveness of the WALANT technique, compared with intravenous regional anesthesia (IVRA; Bier's block), for surgical treatment of CTS. DESIGN AND SETTING: Randomized clinical trial, conducted at Hospital Alvorada Moema and the Discipline of Hand Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil. METHODS: Seventy-eight patients were included. The primary outcome was measurement of perioperative pain through a visual analogue scale (VAS). The secondary outcomes were the Boston Questionnaire score, Hospital Anxiety and Depression Scale (HADS) score, need for use of analgesics, operating room times, remission of paresthesia, failures and complications. RESULTS: The WALANT technique (n = 40) proved to be superior to IVRA (n = 38), especially for controlling intraoperative pain (0.11 versus 3.7 cm; P < 0.001) and postoperative pain (0.6 versus 3.9 cm; P < 0.001). Patients spent more time in the operating room in the IVRA group (59.5 versus 46 minutes; P < 0.01) and needed to use more analgesics (10.8 versus 5.7 dipyrone tablets; P = 0.02). Five IVRA procedures failed (5 versus 0; P = 0.06). CONCLUSIONS: The WALANT technique is more effective than IVRA for CTS surgery.

Hidrodisección guiada por ultrasonido para el tratamiento de pacientes con sindrome del tunel carpiano / Ultrasound-Guided hydrodissection for treatment of Patients with Carpal Tunnel Syndrome

El estudio tuvo como objetivo comparar el grupo de hidrodisección de solución salina normal guiada por ultrasonido más esteroides y el grupo de hidrodisección de solución salina normal guiada por ultrasonido sola en pacientes con síndrome del túnel carpiano (STC), y determinar su relevancia clínica en relación con los resultados del tratamiento. Realizamos 60 hidrodisecciones guiadas por ecografía con solución salina normal con y sin inyecciones de corticosteroides en 51 pacientes con STC y evaluamos los resultados de la ecografía antes y después de la inyección. Clasificamos estas inyecciones en dos grupos según la solución salina normal más corticosteroide (grupo de esteroides). solución salina normal (grupo de control) y también registramos datos clínicos que incluían el sexo, la edad, el lado de la inyección, el peso corporal y la duración de las molestias relacionadas con el STC antes de la inyección. Los resultados se midieron mediante la escala analógica visual que se asignó para evaluar el resultado primario. Los resultados secundarios se evaluaron mediante el cuestionario del síndrome del túnel carpiano de Boston, el área transversal del nervio mediano y estudios electrofisiológicos. La evaluación se realizó antes de la inyección y 1, 3 y 6 meses después de la inyección, y se comparó el alivio de los síntomas para los pacientes que recibieron la inyección de solución salina normal y de esteroides. Comparamos las hidrodisecciones con la solución salina normal y las inyecciones de corticosteroides. Los datos clínicos, las puntuaciones de CSA-MN antes de la inyección en la entrada del túnel carpiano y las puntuaciones de BCTQ antes de la inyección no mostraron diferencias significativas entre los grupos (p> 0,05). Todos los pacientes (datos de 30 muñecas en cada grupo) completaron el estudio. En comparación con el grupo de control, en todos los momentos posteriores a la inyección, ambos grupos tuvieron una reducción significativa del dolor y la discapacidad, una mejora en las medidas de respuesta electrofisiológica y una disminución del área transversal del nervio mediano. Nuestro estudio revela que la solución salina normal guiada por ecografía con y sin hidrodisección de corticosteroides tiene un efecto terapéutico en los pacientes con STC. Se demostró que la hidrodisección nerviosa es potencialmente beneficiosa para los pacientes con STC antes de la cirugía. La hidrodisección es un procedimiento simple y mínimamente invasivo que se puede realizar utilizando únicamente NS. Además, en comparación con la inyección a ciegas, la hidrodisección bajo guía ecográfica puede reducir las posibilidades de lesión nerviosa

The study aimed to compare Ultrasound-Guided Normal saline plus steroid hydrodissection group and Ultrasound-Guided normal saline alone hydrodissection group in patients with carpal tunnel syndrome (CTS), and to determine their clinical relevance in relation to treatment outcomes. We performed 60 US-guided hydrodissections Normal saline with and without corticosteroid injections in 51 patients with CTS and evaluated their pre- and post-injection US findings. We categorized these injections into two groups based on the normal saline plus corticosteroid (steroid group). normal saline (control group) and we also recorded clinical data including gender, age, side of injection, BW, and the duration of preinjection CTS related discomfort. The outcomes were measured using the visual analog scale was assigned to assess the primary outcome. The secondary outcomes were assessed using the Boston Carpal Tunnel Syndrome Questionnaire, cross-sectional area of the median nerve, and electrophysiological studies. The assessment was performed prior to injection, and 1-, 3-, and 6-months' post-injection, and the symptom relief for the patients receiving normal saline and steroid injection were compared. We compared hydrodissections with normal saline and corticosteroid injections The clinical data, pre injection CSA-MN at the inlet of the carpal tunnel, and pre-injection BCTQ scores showed no significant intergroup differences (p > 0.05). All patients (data from 30 wrists in each group) completed the study. Compared both the control group, at all post-injection time points, both groups had a significant reduction in pain and disability, improvement on electrophysiological response measures, and decreased cross-sectional area of the median nerve. Our study reveals that ultrasound-guided Normal saline with and without corticosteroid hydrodissection has therapeutic effect in patients CTS. Nerve hydrodissection was shown to be potentially beneficial for CTS patients' pre-surgery. Hydrodissection is a simple, minimally invasive procedure that can be performed using only NS. In addition, compared to blind injection, hydrodissection under ultrasound guidance can lower the chances of nerve injury

Epidemiological Profile of Surgically-Treated Peripheral-Nerve Diseases

Objective To outline the epidemiological profile of surgical patients treated at the peripheral-nerve outpatient clinic of a public hospital in the state of Pernambuco, Brazil, from 2008 (the year this service was implemented in the hospital ) to 2016. Material and Methods A cross-sectional study with data collection from the medical records. A descriptive analysis was performed with the qualitative variables presented as relative and absolute frequencies, and the quantitative variables, as means and standard deviations. The studied variables were gender, age, diagnosis, and surgical techniques. Results In total, 506 medical records were analyzed. Of these, 269 were of male patients (53%), and 238 were of female patients (46%). The age of the sample ranged from 5 to 84 years (41 14 years). The most prevalent diagnoses were: carpal tunnel syndrome (38.9%) followed by traumatic brachial plexus injury (33.2%). The first diagnosis was more frequent among women, while the second, among men. This collaborates with the predominant findings of upper-limb lesions (91%), in which men accounted for 52,75% (244) and women, for 47,25% (217). Conclusion The present study provided relevant information regarding the reality of peripheral-nerve surgeries performed at a public hospital in the state of Pernambuco, Brazil. Public health issues increasingly require the continuity of public policies and government incentive.

Variedad úlcero-mutilante del Síndrome del Túnel Carpiano / Ulcerating Variety of Carpal Tunnel Syndrome

El síndrome del túnel carpiano es la neuropatía por atrapamiento más común, afectando del 1 al 3% de la población general. No obstante, la elevada frecuencia, las úlceras digitales y lesiones en piel son excepcionalmente asociadas a esta neuropatía. Presentamos un caso de un paciente con úlceras digitales secundarias al síndrome del túnel carpiano.

Carpal tunnel syndrome is the most common entrapment neuropathy, affecting 1 to 3% of the population. Even the fact that is very frequent, digital ulcers and skin lesions are unusually related to this neuropathy. We present the case of a patient with digital ulcers secondary to carpal tunnel syndrome.

Ulnar two-point discrimination following endoscopic carpal tunnel release / La liberación endoscópica del túnel carpiano y la prueba de discriminación de dos puntos del nervio cubital

Abstract Carpal tunnel syndrome is median nerve symptomatic compression at the level of the wrist, characterized by increased pressure within the carpal tunnel and decreased nerve function at the level. Carpal tunnel release decreases pressure in Guyon's canal, via open techniques, with symptom and two-point discrimination improvement in the ulnar nerve distribution. We hypothesize that endoscopic carpal tunnel release improves two-point discrimination in the ulnar nerve distribution as well. This study includes 143 patients who underwent endoscopic carpal tunnel release between April 2016 to June 2019 in a single, community-based teaching hospital. A comprehensive retrospective chart review was performed on patient demographics, preand post-operative two-point discrimination test results, and complications. The effects of sex, age, and diabetes mellitus in the ulnar and median nerve territories with two-point discrimination tests were analyzed. As well as the differences in two-point discrimination among patient's based on their smoking status. There were significant post operative improvements in both the median (7.7 vs 4.4 mm, p < 0.001) and ulnar (5.7 vs 4.1 mm, p < 0.001) nerve territories. Smoking status, sex, age and diabetes did not significantly affect two-point discrimination outcomes. In conclusion the endoscopic release of the transverse carpal ligament decompresses the carpal tunnel and Guyon's canal, demonstrating improvement in two-point discrimination in both the ulnar and median nerve distributions.

Resumen El síndrome de túnel carpiano es la compresión sintomática del nervio mediano al nivel de la muñeca. Se caracteriza por un aumento de presión dentro del túnel y una disminución de la función del nervio a ese nivel. La liberación del túnel carpiano descomprime el canal de Guyon, con mejoría sintomática y en la prueba de discriminación de dos puntos en la distribución del nervio cubital. Hipotetizamos que la liberación endoscópica mejora de la misma manera en la distribución del nervio cubital. Este trabajo incluye 143 pacientes que tuvieron liberación endoscópica del túnel carpiano entre abril del 2016 y junio del 2019 en un hospital Universitario de la comunidad. Se evaluaron retrospectivamente las historias clínicas para los datos demográficos, los resultados pre y post quirúrgicos en la prueba de discriminación de dos puntos y complicaciones. Se analizaron los efectos del sexo, edad, tabaco y diabetes en los resultados de la prueba de discriminación de dos puntos para los nervios cubital y mediano. Hubo mejoría significativa post quirúrgica en la prueba de discriminación de dos puntos para los nervios mediano (7.7 vs 4.4 mm, p < 0.001) y cubital (5.7 vs 4.1 mm, p < 0.001). Fumadores, sexo, edad, y diabetes no afectaron de forma significativa. Concluimos que la liberación endoscópica del ligamento transverso del carpo descomprime el túnel carpiano y el canal de Guyon con mejoría en la prueba de discriminación de dos puntos para los nervios cubital y mediano.

Electrodiagnostic Testing Characteristics of Diabetic People with Carpal Tunnel Syndrome / Características eletrofisiológicas das pessoas diabéticas com síndrome do túnel do carpo

Abstract Objective The present study aimed to correlate electroneuromyography (ENMG) findings in diabetic and nondiabetic subjects with carpal tunnel syndrome (CTS). Methods In total, 154 patients were evaluated in a hand surgery outpatient clinic. All ENMG tests were bilaterally performed by a single neurologist. Qualitative variables were described for all patients with CTS according to their diabetic status, and the chi-squared test was used to reveal any association. A joint model was adjusted to determine the influence of diabetes on ENMG severity in CTS patients. Results The sample consisted of 117 women and 37 men, with an average age of 56.9 years old. Electroneuromyography demonstrated bilateral CTS in 82.5% of the patients. Diabetes was identified in 21.4% of the cases. Severe ENMG was prevalent. Conclusion There was no association between diabetes and ENMG severity in patients with CTS. Level of evidence IV, case series.

Resumo Objetivo O presente trabalho teve por objetivo verificar se existe correlação entre a síndrome do túnel do carpo (STC) e eletroneuromiografia (ENMG) de pacientes diabéticos e não diabéticos. Métodos Foram avaliados 154 pacientes em um ambulatório de cirurgia da mão. Todas as ENMGs avaliadas foram realizadas por um único neurologista, bilateralmente. As variáveis qualitativas foram descritas para todas as pessoas em acompanhamento devido à STC segundo a presença de diabetes e foi verificada a associação com uso do teste qui-quadrado. Foi ajustado o modelo conjunto para verificar a influência da diabetes na gravidade da ENMG em pacientes com STC. Resultados Foram incluídos no presente estudo 117 mulheres e 37 homens, com média de idade de 56,9 anos. Eletroneuromiografia demonstrando STC bilateral foi observada em 82,5% das pessoas. Pessoas diabéticas foram identificadas em 21,4% dos casos. Eletroneuromiografia com padrão grave foi prevalente. Conclusão Não houve associação entre a presença de diabetes e a gravidade da ENMG em pessoas com STC. Nível de evidência IV, série de casos.

Onset of Trigger Finger after Carpal Tunnel Syndrome Surgery: Assessment of Open and Endoscopic Techniques / Frequência do aparecimento de dedo em gatilho no pós-operatório da síndrome do túnel do carpo em duas técnicas cirúrgicas: Aberta e endoscópica

Abstract Objective The present study aimed to determine the frequency of trigger finger (TF) onset after surgery for carpal tunnel syndrome (CTS) using an open (OT) or an endoscopic technique (ET). As a secondary endpoint, the present study also compared paresthesia remission and residual pain rates in patients submitted to both techniques. Methods Trigger finger onset and remission rates of paresthesia and pain at the median nerve territory was verified prospectively in a series of adult patients submitted to an OT procedure (n = 34). These findings were compared with a retrospective cohort submitted to ET (n = 33) by the same surgical team. Patients were evaluated with a structured questionnaire in a return visit at least 6 months after surgery. Results Sixty-seven patients were evaluated. There was no difference regarding trigger finger onset (OT, 26.5% versus ET, 27.3%; p = 0.94) and pain (OT, 76.5% versus ET, 84.8%; p = 0.38). Patients submitted to OT had fewer paresthesia complaints compared with those operated using ET (OT, 5.9% versus ET, 24.2%; p = 0.03). Conclusions In our series, the surgical technique did not influence trigger finger onset and residual pain rates. Patients submitted to OT had less complaints of residual postoperative paresthesia.

Resumo Objetivo Determinar a frequência do aparecimento de dedo em gatilho (DG) no pós-operatório da síndrome do túnel do carpo (STC) em duas técnicas: aberta (TA) e endoscópica (TE). Como desfecho secundário, comparar as taxas de remissão da parestesia e dor residual entre as duas técnicas. Métodos De forma prospectiva, verificamos o aparecimento de dedo em gatilho e taxa de remissão da parestesia e dor no território do nervo mediano em série de pacientes adultos operados pela TA (n = 34). Comparamos com coorte retrospectiva operada pela TE (n = 33), pela mesma equipe de cirurgiões. A avaliação dos pacientes ocorreu por meio de questionário estruturado em consulta de retorno, com mínimo de 6 meses de pós-operatório. Resultados Sessenta e sete pacientes foram avaliados. Não houve diferença quanto ao aparecimento de dedo em gatilho (TA, 26,5% versus TE, 27,3%; p = 0,94) e dor (TA, 76,5% versus TE, 84.8%; p = 0,38). Os pacientes operados pela TA apresentaram menos queixas de parestesia do que os operados pela TE (TA 5,9% versus TE 24,2%; p = 0,03). Conclusões Em nossa série, a técnica cirúrgica não influenciou o aparecimento de dedos em gatilho e dor residual. Os pacientes operados pela técnica aberta apresentaram menos queixa de parestesia residual pós-operatória.

Hidrodisección guiada por ultrasonido para el tratamiento de pacientes con sindrome del tunel carpiano / Ultrasound-Guided hydrodissection for treatment of Patients with Carpal Tunnel Syndrome

El estudio tuvo como objetivo comparar el grupo de hidrodisección de solución salina normal guiada por ultrasonido más esteroides y el grupo de hidrodisección de solución salina normal guiada por ultrasonido sola en pacientes con síndrome del túnel carpiano (STC), y determinar su relevancia clínica en relación con los resultados del tratamiento. Realizamos 60 hidrodisecciones guiadas por ecografía con solución salina normal con y sin inyecciones de corticosteroides en 51 pacientes con STC y evaluamos los resultados de la ecografía antes y después 21. Evers S, Thoreson AR, Smith J, Zhao C, Geske JR, Amadio PC. Ultrasound-guided hydrodissection decreases gliding resistance of the median nerve within the carpal tunnel. Muscle Nerve 2017 June 16. doi: 10.1002/mus.25723. 22. Smith J, Wisniewski S, J, Finnoff JT, Payne JM. Sonographically Guided Carpal Tunnel Injections. J Ultrasound Med 2008;27:1485-1490. 23. Trescott AME. Peripheral Nerve Entrapments: Clinical Diagnosis and Management. Switzerland: Springer International Publishing; 2016 24. Marshall S, Tardif G, Ashworth N. Local corticosteroid injection for carpal tunnel syndrome. Cochrane Database Syst Rev 2002(4). 25. Atroshi I, Flondell M, Hofer M, Ranstam J. Methyprednisolone Injections for the Carpal Tunnel Syndrome: A randomized Placebo-Controlled Trial. Ann Int Med 2013;159:309-317. 26. Peters-Veluthamaningal C, Winters JC, Groenier KH, Meyboom-de Jong B. Randomised controlled trial of local corticosteroid injections for carpal tunnel syndrome in general practice. BMC family practice 2010;11:54. 27. Wu YT, Ho TY, Chou YC, Ke MJ, Li TY, Tsai CK, et al. Six-month efficacy of perineural dextrose for carpal tunnel syndrome: A prospective, randomized, double-blind, controlledtrial. Mayo Clinic proceedings 2017;92:1179-1189. 28. Kirwan J. Is there a place for intra-articular hyaluronate in osteoarthritis of the knee? The Knee 2001;8:93-101. 29. Saltzman BM, Leroux T, Meyer MA, Basques BA, Chahal J, Bach BR, Jr., et al. The therapeutic effect of intra-articular normal saline injections for knee osteoarthritis: Ameta-analysis of evidence level 1 studies. The American journal of sports medicine 2017;45:2647-2653. 30. Padua L, Padua R, Aprile I, Pasqualetti P, Tonali P. Multiperspective follow-up of untreated carpal tunnel syndrome: a multicenter study. Neurology. 2001;56(11):1459­ 66 31. Ortiz-Corredor F, Enriquez F, Diaz-Ruiz J, Calambas N. Natural evolution of carpal tunnel syndrome in untreated patients. Clinical neurophysiology: official journal of the International Federation of Clinical Neurophysiology 2008;119:1373-1378 32. Gordon T, Brushart TM, Chan KM. Augmenting nerve regeneration with electrical stimulation. Neurol Res 2008; 30:1012- 1022. 33. Aulisa L, Tamburrelli F, Padua R, Romanini E, Lo Monaco M, Padua L. Carpal tunnel syndrome: Indication for surgical treatment based on electrophysiologic study. J Hand Surg Am 1998; 23:687-691. 34. Peters-Veluthamaningal C, Winters JC, Groenier KH, Meyboom- de Jong B. Randomised controlled trial of local corticosteroid injections for carpal tunnel syndrome in general practice. BMC Fam Pract. 2010;11:54. 35. Girlanda P, Dattola R, Venuto C, Mangiapane R, Nicolosi C, Messina C. Local steroid treatment in idiopathic carpal tunnel syndrome: short- and longterm efficacy. J Neurol. 1993; 240(3):187- 190. 36. Karadas¸ Ö, Tok F, Ulas¸ UH, Odabas¸i Z. The effectiveness of triamcinolone acetonide vs. procaine hydrochloride injection in the management of carpal tunnel syndrome: a double blind randomized clinical trial. Am J Phys Med Rehabil. 2011; 90(4):287-292. 128 LA PRENSA MÉDICA ARGENTINA Ultrasound-Guided hydrodissection for treatment of Patients with Carpal Tunnel Syndrome V.107/Nº 2 de la inyección. Clasificamos estas inyecciones en dos grupos según la solución salina normal más corticosteroide (grupo de esteroides). solución salina normal (grupo de control) y también registramos datos clínicos que incluyen el sexo, la edad, el lado de la inyección, el peso corporal y la duración de las molestias relacionadas con el STC antes de la inyección. Los resultados se midieron mediante la escala analógica visual que se asignó para evaluar el resultado primario. Los resultados secundarios se evaluaron mediante el cuestionario del síndrome del túnel carpiano de Boston, el área transversal del nervio mediano y estudios electrofisiológicos. La evaluación se realizó antes de la inyección y 1, 3 y 6 meses después de la inyección, y se comparó el alivio de los síntomas de los pacientes que recibieron la inyección de solución salina normal y de esteroides. Comparamos las hidrodisecciones con la solución salina normal y las inyecciones de corticosteroides; los datos clínicos, la preinyección de CSA-MN en la entrada del túnel carpiano y las puntuaciones de BCTQ antes de la inyección no mostraron diferencias significativas entre los grupos (p> 0,05). Todos los pacientes (datos de 30 muñecas en cada grupo) completaron el estudio. En comparación con el grupo de control, en todos los momentos posteriores a la inyección, ambos grupos tuvieron una reducción significativa del dolor y la discapacidad, una mejoría en las medidas de respuesta electrofisiológica y una disminución del área transversal del nervio mediano. Nuestro estudio revela que la solución salina normal guiada por ecografía con y sin hidrodisección de corticosteroides tiene un efecto terapéutico en los pacientes con STC. Se demostró que la hidrodisección nerviosa es potencialmente beneficiosa para los pacientes con STC antes de la cirugía. La hidrodisección es un procedimiento simple y mínimamente invasivo que se puede realizar utilizando únicamente NS. Además, en comparación con la inyección a ciegas, la hidrodisección bajo guía ecográfica puede reducir las posibilidades de lesión nerviosa.

The study aimed to compare Ultrasound-Guided Normal saline plus steroid hydrodissection group and Ultrasound-Guided normal saline alone hydrodissection group in patients with carpal tunnel syndrome (CTS), and to determine their clinical relevance in relation to treatment outcomes. We performed 60 US-guided hydrodissections Normal saline with and without corticosteroid injections in 51 patients with CTS and evaluated their pre- and post-injection US findings. We categorized these injections into two groups based on the normal saline plus corticosteroid (steroid group). normal saline (control group) and we also recorded clinical data including gender, age, side of injection, BW, and the duration of pre-injection CTS related discomfort. The outcomes were measured using the visual analog scale was assigned to assess the primary outcome. The secondary outcomes were assessed using the Boston Carpal Tunnel Syndrome Questionnaire, cross-sectional area of the median nerve, and electrophysiological studies. The assessment was performed prior to injection, and 1, 3, and 6 months' post-injection, and the symptom relief for the patients receiving normal saline and steroid injection were compared. We compared hydrodissections with normal saline and corticosteroid injections the clinical data, pre injection CSA-MN at the inlet of the carpal tunnel, and pre-injection BCTQ scores showed no significant intergroup differences (p > 0.05). All patients (data from 30 wrists in each group) completed the study. Compared both the control group, at all post-injection time points, both groups had a significant reduction in pain and disability, improvement on electrophysiological response measures, and decreased cross-sectional area of the median nerve. Our study reveals that ultrasound-guided Normal saline with and without corticosteroid hydrodissection has therapeutic effect in patients CTS. Nerve hydrodissection was shown to be potentially beneficial for CTS patients' pre-surgery. Hydrodissection is a simple, minimally invasive procedure that can be performed using only NS. In addition, compared to blind injection, hydrodissection under ultrasound guidance can lower the chances of nerve injury.