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Effect of Redon-type Drains on Postoperative Edema Following Mandibular Orthognathic Surgery: a Randomized, Controlled Superiority Trial With Two Parallel Arms (DPO - OM)

11 de noviembre de 2026 actualizado por: University Hospital, Tours

Orthognathic surgery involves the maxillary and/or mandibular skeletal bases; it entails maxillary and/or mandibular osteotomies (such as sagittal split osteotomies of the mandibular rami) aimed at restoring normal maxillomandibular skeletal and dento-occlusal relationships in patients with maxillomandibular dysmorphosis. These deformities give rise to morphological, aesthetic, and functional abnormalities that can be severe (e.g., respiratory issues, temporomandibular joint pain). Postoperative edema is inevitable following orthognathic surgery; it can be significant, causing pain and discomfort while delaying patient recovery and hospital discharge. The use of Redon-type drains for mandibular osteotomies is not a standard practice across surgical teams due to a lack of consensus. The only available data come from studies with methodologies that do not allow for a definitive conclusion regarding the superiority of using-or not using-postoperative Redon drains (Lee et al. 2020), and no clinical trials have investigated this issue. This project aims to evaluate the impact of Redon-type drainage in mandibular osteotomies (sagittal split osteotomies of the mandibular rami), whether or not combined with genioplasty (osteotomy of the mental symphysis). We hypothesize that drainage using Redon-type drains for 6 hours in the immediate postoperative period following mandibular osteotomies significantly reduces postoperative edema.

The primary objective of this clinical trial is to demonstrate the superiority-in terms of reducing postoperative edema at day 2-of placing Redon-type drains for 6 hours immediately following sagittal split osteotomy of the mandibular rami (in addition to standard postoperative care) compared to standard postoperative care alone, without a drainage device.

Hypothesis: Demonstrating that the use of Redon-type drains following orthognathic surgery osteotomies reduces postoperative edema, pain, and discomfort would provide a rational basis for this practice and support its routine implementation. The expected benefits are twofold, impacting both patients and public health. For patients, the anticipated benefits include reduced postoperative discomfort and pain, faster recovery, and shorter hospital stays, with the future prospect of outpatient care.

Descripción general del estudio

Tipo de estudio

Intervencionista

Inscripción (Estimado)

72

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.

Estudio Contacto

Ubicaciones de estudio

      • Angers, Francia
        • Chu Angers
      • Nantes, Francia
        • Chu Nantes

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

15 años y mayores (Niño, Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion criteria:

  • Patients aged 15 years or older

  • Undergoing mandibular osteotomies, with or without genioplasty, with or without wisdom tooth extraction (maxillary and/or mandibular)

  • Informed consent obtained from the adult patient, or from the holder(s) of parental authority if the patient is a minor*

  • Enrolled in a French social security program

    • When both holders of parental authority cannot give joint consent, the consent of a single legal representative may be obtained in situations provided for by regulations or duly justified and documented in the source file.

Exclusion Criteria:

  • History of maxillomandibular bone surgery
  • Coagulation disorder
  • Thrombophilia
  • Patients on anticoagulants or antiplatelet agents
  • Patients with a constitutional bone disorder
  • Patients with a syndromic craniofacial malformation
  • Absolute or relative contraindications to treatment with corticosteroids
  • Pregnant (urine test) or breastfeeding women
  • Patients under legal guardianship, conservatorship, or judicial protection
  • Contraindications to the procedure
  • Patients who have taken corticosteroids or NSAIDs on the day before the procedure (D-1).

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: Prevención
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: experimental arm

with drains placed at the end of the procedure, in addition to standard postoperative care. These will be Redon drains with an outlet that is either intraoral or transcutaneous in the cervical region, depending on the participating center's practices (intraoral transmucosal in the Tours and Angers centers or transcutaneous in the Nantes center); these drains will be removed 6 hours after placement

Translated with DeepL.com (free version)

in which drains are placed at the end of the procedure, in addition to standard postoperative care.

Comparador activo: control arm

which consists of not placing any drainage device immediately after surgery, with standard postoperative care identical to that of the experimental group.

not placing any drainage device immediately after surgery, with standard postoperative care identical

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Postoperative swelling
Periodo de tiempo: Cervicofacial linear measurement will be collected 48 hours after the randomization (day 2) and at month 3. As the facial skeletal anatomy will be modified by the surgical procedure, month 3 will be considered as the baseline measurement.

The primary outcome will be the post operative facial swelling 48 hours after the end of the surgical procedure (randomization will be at this timepoint) measured with cervicofacial linear measurements

Cervicofacial linear measurement will be collected 48 hours after the randomization (day 2) and at month 3. As the facial skeletal anatomy will be modified by the surgical procedure, month 3 will be considered as the baseline measurement.

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Postoperative swelling
Periodo de tiempo: Cervicofacial linear measurement will be collected at 6 hours after randomization, 24 hours after randomization (day 1) and at day 7

Postoperative swelling at other time points than for the primary outcome, measured with cervico facial linear measurements

Cervicofacial linear measurement will be collected at 6 hours after randomization, 24 hours after randomization (day 1) and at day 7
Postoperative swelling
Periodo de tiempo: It will be collected 24 hours after randomization (day 1) , at day 2, at day 7 and at month 3

Postoperative swelling using 3D photogrammetry instead of cervicofacial linear measurements

It will be collected 24 hours after randomization (day 1) , at day 2, at day 7 and at month 3
Pain intensity
Periodo de tiempo: Pain will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7

Pain will be measured using a visual analog scale where 0 corresponds to no pain and 10 to unbearable pain

Pain will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7
Aesthetic discomfort
Periodo de tiempo: It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7

Aesthetic discomfort will be measured using a visual analog scale with 0 indicating no discomfort and 10 corresponding to an extremely uncomfortable feeling

It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7
Breathing discomfort
Periodo de tiempo: It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7

Breathing discomfort will be measured using a visual analog scale where 0 corresponds to no discomfort and 10 to extremely bothersome

It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7
Swallowing discomfort
Periodo de tiempo: It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7

Swallowing discomfort will be measured using a visual analog scale where 0 corresponds to no discomfort and 10 to extremely bothersome

It will be collected 6 hours after randomization, at day 1 (24 hours after randomization), at day 2 and at day 7
Pain during redon drain removal
Periodo de tiempo: It will be collected 6 hours after randomization, at time to redon removal.

Pain during redon drain removal will be collected for participants of the experimental group after redon drain removal

It will be collected 6 hours after randomization, at time to redon removal.
The daily bed rest in hours
Periodo de tiempo: It will be collected at day 1 and at day 2 (how long the participant stay in his bed in the last 24 hours) as well as at day 7 (how long the participants stay in his bed each day of the last 4 days).

It corresponds to how long, in hours, the participant stays in his bed each day.

It will be collected at day 1 and at day 2 (how long the participant stay in his bed in the last 24 hours) as well as at day 7 (how long the participants stay in his bed each day of the last 4 days).
The general well-being
Periodo de tiempo: It will be collected at day 7 and at month 3

General well-being will be assessed using the GHQ-28 self-assessment questionnaire. The GHQ-28 is a questionnaire with 28 items and with scores ranging from 0 - indicating no deterioration in well-being - to 84 - indicating a significant deterioration in well-being.

It will be collected at day 7 and at month 3
The length of hospital stay
Periodo de tiempo: a maximum of 90 days

It corresponds to the lenght of the hospital stay, in days (a maximum of 90 days)

a maximum of 90 days
Postoperative adverse events
Periodo de tiempo: Throughout the three-month follow-up period, whenever an adverse event occurs

Postoperative adverse events correspond to hematoma, pre-thoracic hematoma spread, and infection

Throughout the three-month follow-up period, whenever an adverse event occurs

Colaboradores e Investigadores

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

Investigadores

  • Director de estudio: Anne MORICE, Dr, University Hospital, Tours

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 (Estimado)

30 de diciembre de 2026

Finalización primaria (Estimado)

30 de diciembre de 2029

Finalización del estudio (Estimado)

28 de marzo de 2030

Fechas de registro del estudio

Enviado por primera vez

6 de octubre de 2026

Primero enviado que cumplió con los criterios de control de calidad

11 de noviembre de 2026

Publicado por primera vez (Actual)

12 de noviembre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

12 de noviembre de 2026

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

11 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • DR260063 - DPO OM

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

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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