protocolSection identificationModule nctId: NCT06263374, orgStudyIdInfo id: 69HCL21_0355, briefTitle: Maxillofacial Rehabilitation Using Motor Imagery vs Sham After Orthognathic Surgery, acronym: MAXIMAND, statusModule overallStatus: NOT_YET_RECRUITING, startDateStruct date: 2024-03-01, primaryCompletionDateStruct date: 2027-09-30, completionDateStruct date: 2028-03-31, studyFirstPostDateStruct date: 2024-02-16, lastUpdatePostDateStruct date: 2024-02-16, sponsorCollaboratorsModule leadSponsor name: Hospices Civils de Lyon, class: OTHER, descriptionModule briefSummary: Dento-maxillary dysmorphoses are defined as an anomaly in the relative growth of the maxilla and/or mandible. They lead to functional disorders (i.e., disturbances in chewing or oral communication) and aesthetic issues with psychological repercussions on self-esteem, affecting the quality of life of these patients. The multidisciplinary treatment involves orthodontics (duration = 18-24 months), orthognathic surgery involving the maxillary and/or mandibular bone (at 12 months), immediately followed by physiotherapy (duration = 3 months). One main goal after surgery is the recovery of month opening to restore an appropriate orofacial function. Motor imagery (mental rehearsal of a movement without actually moving) is effectively used in athletes and in rehabilitation mainly neurological but so far has not been investigated in maxillofacial rehabilitation. Considering that the effectiveness of rehabilitation is increased when physical and mental practices are combined, this leads to propose this study aiming to investigate whether the addition of motor imagery of the maxillofacial region to maxillofacial physiotherapy (based on a practice of physical therapeutic exercises) modifies the recovery of maximum mouth opening, other ranges of motion, jaw function, and quality of life in patients after orthognathic surgery compared to the addition of a control cognitive task \[watching a non-emotional content film or filling out a crossword or Sudoku grid\] to maxillofacial physiotherapy., conditionsModule conditions: Maxillofacial Abnormalities, designModule studyType: INTERVENTIONAL, phases: NA, designInfo allocation: RANDOMIZED, interventionModel: PARALLEL, interventionModelDescription: Multi-centric randomized controlled trial, primaryPurpose: TREATMENT, maskingInfo masking: DOUBLE, maskingDescription: A randomization list will be centrally generated by an independent methodologist for each center and integrated into the electronic case report form. The physiotherapist will disclose the allocation to the participant during the inclusion visit, following clear, transparent, and appropriate information, and obtaining the participant's consent to participate in the study. This disclosure occurs after all measurements have been completed. The inclusion visit is scheduled 30 days ± 8 before the surgery., whoMasked: INVESTIGATOR, whoMasked: OUTCOMES_ASSESSOR, enrollmentInfo count: 100, type: ESTIMATED, armsInterventionsModule interventions name: Motor imagery of the jaw, interventions name: Control task (Sudoku or Crossword puzzle), outcomesModule primaryOutcomes measure: Maximal mouth opening measured in millimeters using a caliper, secondaryOutcomes measure: Active maximum mouth opening in millimeter using a vernier caliper, secondaryOutcomes measure: Active jaw range of motion (ROM) other than maximal opening, secondaryOutcomes measure: Maxillofacial pain, secondaryOutcomes measure: Body weight mass (kilograms), secondaryOutcomes measure: Orthodontic associated treatment, secondaryOutcomes measure: Compliance with physiotherapy and intervention, secondaryOutcomes measure: Orofacial function, secondaryOutcomes measure: Maxillofacial quality of life, secondaryOutcomes measure: Level of achievement of the goals set by the patient before surgery, secondaryOutcomes measure: Motor imagery capability, eligibilityModule sex: ALL, minimumAge: 18 Years, stdAges: ADULT, stdAges: OLDER_ADULT, contactsLocationsModule locations facility: Cabinet Bataille, city: Lyon, zip: 69003, country: France, contacts name: Guillaume Nainani, role: CONTACT, phone: 0478011908, phoneExt: +33, email: guillaume.nainani@gmail.com, geoPoint lat: 45.74848, lon: 4.84669, locations facility: Cabinet de kinésithérapie Saint Alexandre, city: Lyon, zip: 69005, country: France, contacts name: Caroline Alvarado-Faysse, role: CONTACT, phone: 0437410332, phoneExt: +33, email: c.alvarado.faysse@gmail.com, geoPoint lat: 45.74848, lon: 4.84669, locations facility: Hôpital Henry Gabrielle, city: Saint-Genis-Laval, zip: 69230, country: France, contacts name: Sébastien Matéo, role: CONTACT, phone: 0478865066, phoneExt: +33, email: sebastien.mateo@chu-lyon.fr, geoPoint lat: 45.69558, lon: 4.7934, hasResults: False