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Effectiveness of PErcutaneous Ultrasound-guided Carpal Tunnel Release: a Non-inferiority Study With Surgery as Comparator (EPEC)

15 de julio de 2026 actualizado por: GCS Ramsay Santé pour l'Enseignement et la Recherche

Effectiveness of PErcutaneous Ultrasound-guided Carpal Tunnel Release: a Non-inferiority Study With Surgery as Comparator (Projet)

Carpal tunnel syndrome is a common condition caused by compression of the median nerve. Tingling in the first three or four fingers, usually at night or upon waking, is the most frequent symptom. Reduced sensation in the fingers and clumsiness can also occur, and in severe cases, there may even be weakness in thumb abduction with thenar muscle wasting. Carpal tunnel syndrome (CTS) is the most commonly diagnosed nerve compression syndrome. The annual incidence of diagnosis varies depending on the study and the country. It's estimated at 3.8 per thousand in the general population, 1 to 2 per thousand in men, 4 to 5 per thousand in women, with a peak between ages 40 and 60.

Medical treatment combines removing a microtraumatic factor, immobilization with a brace, and giving 1 to 2 cortisone injections into the carpal tunnel. The results are good in purely sensory cases. If it doesn't work, things get worse despite treatment, or in severe cases from the start (severe sensory problems, loss of strength, muscle wasting), surgery is recommended.

Several teams have recently demonstrated the benefits of using a minimally invasive ultrasound-guided surgical technique to perform flexor retinaculum sectioning under ultrasound guidance. This technique offers increased safety thanks to continuous ultrasound monitoring and the visualization of median nerve variants. Rojo et al. compared ultrasound surgery with a 1 mm incision to mini-open surgery with a 20 mm incision in 128 patients. This study suggests that a minimally invasive approach could allow for faster functional pain recovery compared to conventional surgery.

This project is based on the hypothesis that the proposed ultrasound-guided percutaneous release technique has an efficacy and tolerability profile suitable for widespread use in the indication of carpal tunnel syndrome resistant to conservative treatment, and that it can therefore reduce the need for conventional surgery in this indication.

Descripción general del estudio

Tipo de estudio

Intervencionista

Inscripción (Actual)

7

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

      • Paris, Francia, 75010
        • Hôpital Lariboisière

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  • Patient, male or female, over 18 years of age
  • Patient with clinical carpal tunnel syndrome
  • Patient with unilateral or bilateral carpal tunnel syndrome. In the case of bilateral involvement, the more symptomatic hand (with the highest Boston score) will be included, with the patient agreeing that the second hand will not be operated on within one year.
  • Patient with carpal tunnel syndrome confirmed by an EMG less than 6 months old
  • Patient with carpal tunnel syndrome without motor or sensory deficits
  • Patient with carpal tunnel syndrome resistant to conservative treatment, including at least one corticosteroid injection
  • Patient agreeing to undergo surgery
  • Patient affiliated with or covered by a social security plan
  • Patient who has been informed and has signed a free and informed written consent.

Exclusion Criteria:

  • Patient with another condition of the hand or wrist (Dupuytren's disease, inflammatory rheumatism, symptomatic osteoarthritis)
  • Patient with a history of previous hand or wrist surgery requiring treatment
  • Neurological sequelae of the hand
  • Patient with non-medicinal hypocoagulation or vitamin K antagonist overdose
  • Patient with a known allergy to lidocaine
  • Patient with an unhealed palmo-digital wound
  • Patient with a superficial or deep palmo-digital infection or inflammation
  • Patient who has received a cortisone injection in the hand or wrist within the last month. - Patient with type 1 diabetes or poorly controlled diabetes (HbA1c >7.5% for less than 3 months)
  • Patient with cognitive impairment deemed incompatible with the research by the investigator
  • Patient with a language barrier preventing a reliable assessment
  • Patient participating in another clinical trial
  • Protected patient: adult under guardianship, curatorship, or other legal protection, deprived of liberty by judicial or administrative decision
  • Pregnant, breastfeeding, or postpartum woman

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Otro
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Patient undergoing percutaneous ultrasound-guided carpal tunnel release procedure.
The aim of this study is to compare the conventional surgery to the percutaneous ultrasound-guided carpal tunnel release procedure. One group is doing the conventional surgery and the other the procédure to evaluate.
EVA, Boston and Quick Dash questionnaires : all study visits
Comparador activo: Patient undergoing conventional surgery.
The aim of this study is to compare the conventional surgery to the percutaneous ultrasound-guided carpal tunnel release procedure. One group is doing the conventional surgery and the other the procédure to evaluate.
EVA, Boston and Quick Dash questionnaires : all study visits

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Severity of symptoms" subscore of the Boston Questionnaire
Periodo de tiempo: 3 months after surgery

The "Severity of symptoms" subscore of the Boston Questionnaire, specific to carpal tunnel syndrome, 3 months post-intervention, assessed by the clinical research associate, blinded to the procedure performed.

Eleven questions with a score between 1 and 5 for each items. The final score is between 11 (no symptoms) and 55 (very high severity).

3 months after surgery

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

1 de enero de 2023

Finalización primaria (Actual)

15 de marzo de 2025

Finalización del estudio (Actual)

15 de marzo de 2025

Fechas de registro del estudio

Enviado por primera vez

19 de junio de 2026

Primero enviado que cumplió con los criterios de control de calidad

19 de junio de 2026

Publicado por primera vez (Actual)

25 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

16 de julio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

15 de julio de 2026

Última verificación

1 de julio de 2026

Más información

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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