Dietary Interventions to Reduce Postoperative Weight Loss and Improve Recovery After Orthognathic Surgery

Systematic Dietary Interventions to Minimize Postoperative Weight Loss and Enhance Recovery Following Orthognathic Surgery

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07431268

Enrollment

150

Registered

2026-02-24

Start date

2017-04-18

Completion date

2022-04-11

Last updated

2026-02-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthognathic Surgery

Brief summary

Objectives This randomized controlled trial aimed to assess whether structured dietary interventions, implemented both before and after orthognathic surgery, could minimize postoperative weight loss and thereby enhance recovery during the first eight weeks. Material and Methods The study was conducted at Aalborg University Hospital, Denmark, from April 2017 to April 2022, involving patients undergoing single- or bimaxillary surgery. Participants were randomly allocated into two intervention groups receiving nutritional supplements and one control group. Body composition was assessed using a Body Composition Analyzer at five time points: pre-surgery examination, admission, and follow-ups weeks 1, 3, and 8. Primary outcome was weight, secondary outcomes included BMI, fat mass, fat-free mass, total body water, and visceral fat rating. Additional data were collected on age, gender, type of surgery, and hospitalization duration.

Interventions

OTHERIntervention group receiving nutritional supplements through G-tube and Protein drinks

Nutrition supplement: G-tube administered Nutrition and Protein drinks

OTHERIntervention group receiving nutritional supplements through Protein drinks

Nutrition supplements recieved through intake of Protein drinks

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

HEALTH_SERVICES_RESEARCH

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Adult patients of both sexes with dentofacial deformities who underwent single- or bimaxillary surgery (Le Fort I osteotomy and/or bilateral sagittal split osteotomy) were included in the study.

Exclusion criteria

Patients not willing to complete the planned treatment in the intervention groups.

Design outcomes

Primary

Measure	Time frame	Description
Change from baseline in weight in kilogram after orthognatic surgery	From enrollment, (14 days before surgery), to 8 weeks after surgery.	Weight changes was the primary measure of interest, assessed using the Tanita BC-418 Segmental Body Composition Analyzer. Measurements were taken during scheduled hospital appointments; the pre-surgery examination, admission interview, and follow-up visits at week 1-, 3- and 8.

Countries

Denmark

Contacts

PRINCIPAL_INVESTIGATORKarin Bundgaard, PhD

Aalborg University Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026