NCT07320911

Patient-Specific Guides for Gap Pediatric Arthroplasty

Patient-Specific Narrow-Slit Osteotomy Guides for Gap Arthroplasty in Pediatric TMJ Ankylosis

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 8 (actual)
• Sponsor: Alexandria University · Academic / Other
• Sex: All
• Age: 15 Years
• Healthy volunteers: Not accepted

Summary

To date, few reports have combined patient-specific guides with piezoelectric devices for gap arthroplasty in children. This study evaluates the feasibility, accuracy, and early outcomes of this approach, hypothesizing that the combination of narrow-slit surgical guides and piezoelectric osteotomy provides safe and reproducible results in pediatric TMJ ankylosis.

Detailed description

A prospective pilot study was conducted on \[n\] children (mean age \[x\] years) with TMJ ankylosis. Virtual surgical planning and CAD/CAM fabrication were used to design patient-specific guides with narrower osteotomy slits (width \[x\] mm) to allow precise bone removal and improved condylar fit. Preoperative and postoperative CT scans were superimposed to measure the accuracy of gap creation. Functional outcomes included maximal interincisal opening (MIO) at 1, 3, and 6 months, and complications.

Conditions

• Temporomandibular Joint Ankylosis

Interventions

Type	Name	Description
DEVICE	Patient-Specific Narrow-Slit Osteotomy Guides	Patient-Specific Narrow-Slit Osteotomy Guides for gap arthroplasty

Timeline

• Start date: 2025-01-01
• Primary completion: 2025-07-30
• Completion: 2025-12-31
• First posted: 2026-01-06
• Last updated: 2026-01-06

Locations

1 site across 1 country: Egypt