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RecruitingNCT06369129Updated Apr 17, 2024

Accuracy& Orbital Volume Using Patient Specific Titanium Implant Vs Zirconia for Orbital Floor Reconstruction

An interventional study of Orbital floor reconstruction with Patient Specific Zirconia Implant and Orbital floor reconstruction with Patient Specific Titanium Implant in Blow-Out Fractures, Orbital Fractures and Orbital Floor Fracture, sponsored by Cairo University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-04-17.

Sponsored by Cairo University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

Comparative study used to assess if the patient specific zirconia implant will provide better accuracy, intraoperative adaptability, precise orbital volume and soft tissue reaction with more cost effectiveness than the patient specific titanium implants in orbital floor reconstruction after blow out fractures .

Read the detailed description

Patients of both groups will be subjected to:

  1. Case history including personal data, medical, surgical history and family history.
  2. A full examination of the cranial and maxillofacial skeleton and soft tissue .
  3. Evaluation of Visual Functions
  4. Ophthalmologic consultation and clearance
  5. Radiographic examination: CT scan
  6. All DICOM data will be imported to the surgical planning software.

Virtual planning:

  1. A midsagittal plane will be constructed then the normal orbit will be mirrored to the affected side.
  2. The mirrored orbital floor will be meshed with 1.6 mm holes then its peripheries will be extended downwards by 3 mm and meshed also in order to accommodate the fixation.
  3. The designed part will be subtracted then exported in Stereolithography (STL) format to be fabricated .

    The surgery will be done under General anesthesia and undertaken within 14 days to prevent fibrosis. Can be delayed 24-72 hours to allow the edema to subside before undertaking surgery.

    Intervention Group: -

    • The STL file will be milled from zirconium and then will be ready for sterilization and intraoperative fixation
    • A transconjunctival incision will be done to allow for good exposure that optimizes visualization of the orbital floor during the repair and insertion and fixation of the patient specific zirconia implant.

    Control Group: -

    • The STL file be milled from grade 4 titanium and then will be ready for sterilization and intraoperative fixation with the same surgical steps.

    Follow up:

    All patients will be examined clinically and radiographically, during postoperative 1st and 2nd week .

    Only one postoperative CT scan will be done after 2 weeks.

02

Conditions studied

  • Blow-Out Fractures
  • Orbital Fractures
  • Orbital Floor Fracture
  • Orbital Trauma
03

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Patients with blow out fracture isolated and / or combined with other fracture.
  • Age group: from 18 to 60 years old
  • No sex predilection
  • Patients with no contraindications to surgical intervention.
  • Patients willing for the surgical procedure and follow-up, with an informed consent.

Exclusion criteria

Exclusion Criteria :

  • Medically compromised patients.
  • Patients with history of previous orbital reconstruction surgery.
  • Uncooperative patients.
  • Patients with systemic contraindication to general anesthesia.
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Orbital floor reconstruction with Patient Specific Zirconia Implant

    Orbital floor reconstruction with Patient Specific Zirconia Implant will be done

    Procedure: Orbital floor reconstruction with Patient Specific Zirconia Implant

  • Active comparator
    Orbital floor reconstruction with Patient Specific Titanium Implant

    Orbital floor reconstruction with Patient Specific Titanium Implant will be done.

    Procedure: Orbital floor reconstruction with Patient Specific Titanium Implant

Interventions

  • ProcedureOrbital floor reconstruction with Patient Specific Zirconia Implant

    Orbital floor reconstruction with Patient Specific Zirconia Implant will be done

  • ProcedureOrbital floor reconstruction with Patient Specific Titanium Implant

    Orbital floor reconstruction with Patient Specific Titanium Implant will be done

05

What researchers measure

Primary outcomes

  1. Orbital Volume

    will be measured with CT scan in mm3

    Time frame: immediately post operative

Secondary outcomes

  1. Accuracy of the patient specific implant in the orbital floor reconstruction

    will be measured with CT scan with superimposition of the preoperative CT scan and the mirrored image and the post operative CT scan . The difference will be measured by mm

    Time frame: immediately post operative

  2. Cost effectiveness

    will compare between the prices of the patient specific implants the titanium and the zirconia and financial record will be kept with that in United states dollar . By the end of the study and comparison will be done to check which one was more cost effective

    Time frame: through study completion, an average of 1 year

  3. Patient satisfaction

    will be assessed by a Questionnaire using Visual analogue scale , highest score will be more satisficed .The score is minimum 1 and maximum 10.

    Time frame: through study completion, an average of 1 year

06

Study locations

1 of 1 sites recruiting
  • Cairo University
    Cairo, 11511, Egypt
    Recruiting
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT06369129
Lead sponsor
Cairo University
Responsible party
Ola Alaa El-Din Abd El-Monem Mohamed (Assistant lecturer, Cairo University) — Principal investigator
First posted
Apr 16, 2024
Start date
Apr 6, 2024
Primary completion
Aug 2025 (estimated)
Completion
Aug 2025 (estimated)
Last update
Apr 17, 2024

Study contacts

OLA A. ELMORSY, PHD
Contact
dr.ola.elmorsy@gmail.com
00201141234877
OLA A. ELMORSY, PHD
principal investigator · Cairo University

Oversight

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

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