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CompletedNCT03994679VIR-CLEFTUpdated Feb 25, 2022

Feasibility and Performance of Virtual Software for Virtual Bone Graft Planning in Cleft Patients

An observational study in Cleft Palate Children, sponsored by AZ Sint-Jan AV. Completed at 1 site in Belgium. Open to participants aged 7 Years to 12 Years. Per ClinicalTrials.gov, last updated 2022-02-25.

Sponsored by AZ Sint-Jan AV · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
10
Ages
7 Years to 12 Years
Sex
All
01

Study summary

Objective: The investigators aim to compare the licensed Brainlab Iplan® software, considered the gold standard, to the 3D slicers and Blender freeware for the segmentation of the unilateral cleft defect, as well as the creation of individual 3D template for development of the bone graft.

Study design Retrospective, pilot study Patients presenting at the division of maxillofacial surgery at the AZ Sint-Jan Brugge-Oostende av (Belgium) or the 1st department of pediatrics at the USemmelweis (Hungary) for bone graft surgery of the unilateral cleft receive a complete routine work-up, including a cone-beam CT (CBCT). A single surgeon will run all the virtual planning steps with both the licensed software and the freeware. Timing of the four major steps will be measured with a digital chronometer (http://www.online-stopwatch.com/download-stopwatch/).

Ten children, 5 Belgian patients and 5 Hungarian patients, that already had a work-up and surgery for a unilateral cleft requiring a bone graft, will be planned. This based on the preoperative CBCT that is already present, by using both the licensed software and free software. The investigator will register patients' age, gender and cleft size and register the required time to complete the different planning steps, as well as list the number of actions to complete the planning, and the occurrence of software bugs. In addition, the learning effect will be examined through comparison of the different cases planned by the same surgeon. All patients will be planned twice with an interval of two weeks in order to measure intra-observer reliability. Moreover, a second surgeon will also plan the 10 cases to measure inter-observer reliability.

Main study endpoints The investigators hypothesize that the licensed software is more user-friendly, ensuring a significant shorter overall treatment planning time to create a model for accurate bone transfer from the iliac crest to the jawbone.

02

Conditions studied

  • Cleft Palate Children

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Keywords

  • 3D virtual software
  • bone graft
03

In context

Cleft Palate

131 studies on the registry are indexed under Cleft Palate; 36 are open to participants now.

This study's enrollment of 10 is below the median of 96 across 40 observational studies indexed under Cleft Palate.

Browse Cleft Palate studies →

Lead sponsor

AZ Sint-Jan AV is the lead sponsor of 58 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
7 Years to 12 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients presenting at the division of maxillofacial surgery at the AZ Sint-Jan Brugge-Oostende av (Belgium) or the 1st department of pediatrics at the USemmelweis (Hungary) for bone graft surgery of the unilateral cleft receive a complete routine work-up, including a cone-beam CT (CBCT).

Inclusion criteria

  • Patients with a unilateral cleft
  • Patients of all genders
  • Patients aged 7-12 years old
  • Patients should have presented themselves at the division of maxillofacial surgery, at the participating hospital centers, for bone graft surgery
  • Patients should have received standardized cone-beam computed tomography (CBCT) image acquisition as part of routine work-up, and all original DICOM files should be present
  • Preoperative 3D virtual planning should be performed by the same investigator per center with both the licensed software and the freeware

Exclusion criteria

Exclusion Criteria:

  • All patients that do not fit the abovementioned description
  • Patients with previous bone graft surgery
  • Patients with posttraumatic deformity
  • Patients with preprosthetic indication
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
10 participants (actual)
Patient registry
No

Groups and cohorts

  • cleft patient requiring bone graft

    Patients presenting at the division of maxillofacial surgery at the AZ Sint-Jan Brugge-Oostende av (Belgium) or the 1st department of pediatrics at the USemmelweis (Hungary) for bone graft surgery of the unilateral cleft receive a complete routine work-up, including a cone-beam CT (CBCT).

06

What researchers measure

Primary outcomes

  1. duration of total virtual planning time

    measurement of total virtual planning time, with a digital chronometer

    Time frame: preoperative

Secondary outcomes

  1. duration of segmentation of the cleft defect

    measurement of segmentation of the cleft defect, with a digital chronometer

    Time frame: preoperative

  2. duration of creation of the individual 3D template

    measurement of duration of creation of the individual 3D template, with a digital chronometer

    Time frame: preoperative

07

Study locations

1 site
  • AZ Sint-Jan Brugge-Oostende AV
    Brugge, Belgium
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 25, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03994679
Lead sponsor
AZ Sint-Jan AV
Responsible party
Krisztian Nagy (principal investigator, maxillofacial surgeon, AZ Sint-Jan AV) — Principal investigator
First posted
Jun 21, 2019
Start date
Nov 12, 2018
Primary completion
Jul 31, 2020
Completion
Dec 31, 2020
Last update
Feb 25, 2022

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.

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