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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 listopada 2026 zaktualizowane przez: 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.

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Typ studiów

Interwencyjne

Zapisy (Szacowany)

72

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

      • Angers, Francja
        • Chu Angers
      • Nantes, Francja
        • Chu Nantes

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

15 lat i starsze (Dziecko, Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

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 studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Zapobieganie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: 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.

Aktywny komparator: 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

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Postoperative swelling
Ramy czasowe: 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.

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Postoperative swelling
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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
Ramy czasowe: 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

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Śledczy

  • Dyrektor Studium: Anne MORICE, Dr, University Hospital, Tours

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

30 grudnia 2026

Zakończenie podstawowe (Szacowany)

30 grudnia 2029

Ukończenie studiów (Szacowany)

28 marca 2030

Daty rejestracji na studia

Pierwszy przesłany

6 października 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

11 listopada 2026

Pierwszy wysłany (Rzeczywisty)

12 listopada 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

12 listopada 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

11 listopada 2026

Ostatnia weryfikacja

1 listopada 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • DR260063 - DPO OM

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

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