Complications From the Use of Calcium Phosphate Paste in Mandibular Lengthening Osteotomies

NCT ID: NCT02918344

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

196 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-03-01

Study Completion Date

2020-04-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The goal of this study is to determine if the use of calcium phosphate paste in mandibular lengthening surgery causes more complications as surgical site infections and hardware removal.

An evaluation will be made to determine if the benefits of the use of the paste (3D-stability, prevention of early relapse and unaesthetic indentation) outweighs the disadvantages.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The sagittal split osteotomy (SSO) is commonly used to correct dentofacial discrepancies. Correction of distocclusion can be achieved through lengthening of the mandible, and a balanced facial appearance can be obtained by increasing chin projection.

Calcium phosphate paste is used in mandibular lengthening surgery to avoid an unaesthetic notching at the lower border(1)(2) and to help stabilize the segments when osteosynthesis slippage is feared for. A recently performed retrospective study showed an increase of infectious complications when calcium phosphate paste was used for this indications. Several precautions were identified that could be undertaken to decrease the infectious complications. The study concluded that a prospective study was required in which these precautions were implemented to determine whether infectious complications can be reduced.

The aim of this study is to investigate whether the hardened paste still increases the incidence of site infections after implementation of several precautions and the use of a standardized antibiotic prophylactic protocol.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Jaw Anomalies Infection

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

calcium phosphate paste

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Standard sagittal split osteotomy group

Patients undergoing sagittal split osteotomy without paste application

Hydroset

Intervention Type OTHER

Calcium phosphate paste is used in mandibular lengthening surgery to avoid an unaesthetic notching at the lower border and to help stabilize the segments when osteosynthesis slippage is feared for.

Standard sagittal split osteotomy

Intervention Type PROCEDURE

The sagittal split osteotomy (SSO) is commonly used to correct dentofacial discrepancies.

Cohort/Hydroset group

Patients undergoing sagittal split osteotomy with paste application

Hydroset

Intervention Type OTHER

Calcium phosphate paste is used in mandibular lengthening surgery to avoid an unaesthetic notching at the lower border and to help stabilize the segments when osteosynthesis slippage is feared for.

Standard sagittal split osteotomy

Intervention Type PROCEDURE

The sagittal split osteotomy (SSO) is commonly used to correct dentofacial discrepancies.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Hydroset

Calcium phosphate paste is used in mandibular lengthening surgery to avoid an unaesthetic notching at the lower border and to help stabilize the segments when osteosynthesis slippage is feared for.

Intervention Type OTHER

Standard sagittal split osteotomy

The sagittal split osteotomy (SSO) is commonly used to correct dentofacial discrepancies.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* All patients with dysgnatic deformities requiring mandibular lengthening surgery
* Gender: M/F
* Age: \>15y-75y

Exclusion Criteria

* Previous orthognathic surgery
* Congenital facial malformations
* Unilateral SSO
* Immunodeficiency
* Simultaneous removal of lower third molars
* Incomplete postoperative follow-up
Minimum Eligible Age

15 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Universitair Ziekenhuis Brussel

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Erica Coppey, Dr.

Role: PRINCIPAL_INVESTIGATOR

Universitair Ziekenhuis Brussel

Maurice Mommaerts, Prof.Dr.Mult

Role: STUDY_DIRECTOR

Universitair Ziekenhuis Brussel

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

universitair Ziekenhuis brussel

Jette, Brussels Capital, Belgium

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Belgium

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

Calciumfosfaat cement

Identifier Type: -

Identifier Source: org_study_id