Clinical trial Recruiting at 1 site Interventional Ages 18 to 55

Pre-adapted 3D-printed, patient-specific mesh for unilateral orbital fractures with or without navigation

Official title: Pre-adaptation of In-stock Mesh Using In-house 3D Patient Specific Model to Reconstruct Unilateral Primary Orbital Fracture

Run by Ain Shams University · NCT07882121 · Data updated 2026-11-12

This study tests whether pre-bending an in-stock titanium mesh using a patient’s 3D-printed skull model improves repair outcomes for unilateral orbital fractures compared with conventional free-hand bending and with navigation-assisted placement.

Quick facts

Study typeInterventional
Ages18 Years to 55 Years
SexAll
Enrollment30 (estimated)
SponsorAin Shams University
Academic / other
Locations2 sites (Cairo, Abbasia and 1 other locations)
StatusRecruiting
StartedJune 1, 2025
Main results expectedMarch 1, 2027
Study endsApril 15, 2027
Registry record updatedOctober 20, 2026
Trial IDNCT07882121 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–55 with recent unilateral orbital fractures involving medial wall or floor and with factors such as minimal globe malposition, ≥2 mm enophthalmos, or diplopia, suitable for surgical reconstruction.

Probably not a fit

Patients with delayed presentation (>3 weeks), bilateral fractures, or complex multi-facial injuries may not benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study compares three approaches to reconstructing unilateral orbital fractures: pre-adapting an in-stock titanium mesh on a patient-specific 3D-printed model generated from the patient’s CT data, conventional intraoperative free-hand mesh bending, and mesh placement guided by an intraoperative navigation system. Outcomes are assessed radiologically and clinically, including ocular motility, diplopia, enophthalmos, and infraorbital nerve sensation, at baseline and postoperative visits up to six months. The study uses CT-based measurements of orbital bone alignment and clinical tests to evaluate accuracy of mesh positioning and functional recovery. Eligible participants are adults 18–55 with recent unilateral orbital fractures, excluding bilateral fractures, delayed presentation, and other severe ocular or systemic conditions. Lead sponsorship is Ain Shams University with site involvement at its Cairo hospitals.

Why it matters

Potential benefit: If successful, the approach could improve orbital fracture repair accuracy and reduce postoperative eye movement limitations and enophthalmos.

How similar studies have gone: Prior work in 3D-printed, patient-specific models and navigation-assisted reconstruction has shown promise, but direct comparison with pre-adapted meshes is relatively novel in this exact setting.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Fracture orbital wall:
* Timing: Recent (\<3 weeks from trauma) Age: 18-55 years Sex: Both

Clinical Findings:

± Globe malposition, Enophthalmos ≥ 2 mm or Diplopia CT Findings

* Fracture Pattern: unilateral fractures medial wall or floor of the orbit.
* Defect Size critical sized defects proved by CT

  * Herniation of soft tissue, and/or muscle entrapment.
  * associated non-comminuted zygomatic fracture.

Exclusion Criteria:

* Timing Delayed (\> 3 weeks from trauma)
* Pattern : Bilateral orbital fractures
* Associated with Comminuted zygomatic fracture or pan-facial fracture Ocular Manifestations
* Patients with ruptured globe or associated soft tissue injury Associated conditions
* Other life-threatening condition
* Presence of systemic diseases affecting the globe position (e.g Hyperthyroidism, Horner's syndrome)
* Presence of craniofacial anomalies and Facial asymmetries.
* History of other old facial fractures Patients refusing surgery or implant.

Where it's running

  • Ain shams university hospitals, department of plastic, burn and maxillofacial surgery
    Cairo, Abbasia, Egypt
    Recruiting
  • Ain shams university hospitals
    Cairo, Cairo Governorate, Egypt
    Completed

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.