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Effect of Collagen Matrix Graft on Palatal Fistula Formation After Cleft Palate Repair

The Effect of Collagen Matrix Graft on Postoperative Palatal Fistula Formation After Cleft Palate Repair: A Randomized Controlled Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05454670
Enrollment
48
Registered
2022-07-12
Start date
2022-08-10
Completion date
2024-06-30
Last updated
2024-10-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cleft Lip and Cleft Palate, Cleft Lip, Cleft Alveolus and Cleft Palate, Cleft Palate

Keywords

cleft palate, palatal fistula, collagen graft

Brief summary

Palatal fistulas are a major burden to surgeons and patients in the management of cleft palate. Their high rate of occurrence and recurrence makes them particularly challenging even to the highly skilled surgeon. Prevention of postoperative palatal fistula is therefore of paramount importance. Closure of the nasal mucosa under tension has been proposed as a major cause of palatal fistula formation. However, depending on the presentation of the cleft palate, it may be impossible to achieve surgical closure with minimal tension. Till date, there is no universally acceptable method of preventing palatal fistula formation following cleft palate repair. And although the use of pre-surgical appliances such as Latham appliance and the use of local and distant tissues to achieve two layer closure have been proposed, the use of a superpositional collagen graft may also be used to achieve closure of the nasal mucosa with minimal or no tension during cleft palate repair. Collagen grafts have the added advantage of being more patient friendly compared to the Latham appliance which requires an initial surgery for appliance insertion before surgical cleft palate repair. They are also less technique sensitive compared to the use of local and distant tissues. The investigators therefore aim to provide high level scientific evidence of the effectiveness of collagen graft in the prevention of postoperative palatal fistula.

Interventions

PROCEDURETwo-flap palatoplasty

Two-flap palatoplasty used to correct cleft palate defect. The cleft palate is closed by separation of the nasal and the oral mucosa layers. Then approximation of the nasal mucosa layer, muscle layer is secured in the posterior palate and then the oral mucosa layer is secured

Sponsors

University of Lagos, Nigeria
CollaboratorOTHER
Lagos State University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Masking description

This study will be a double-blind randomized controlled study. After random allocation, the participants (parents/ patients) will be unaware of the study group they belong to. Also, the surgeon assessing postoperative outcomes will not perform the surgery and will be unaware of the study group of the participant being examined. Since the collagen graft will be placed between the nasal/ muscular layers and the oral layer, it is expected that after apposition of the oral layer, no collagen matrix will be visible intraorally to reveal the study group of participants.

Intervention model description

The study will be a parallel randomized controlled study involving two groups of participants. The test group will include participants with who will undergo cleft palate repair with collagen graft used as superpositional graft between the nasal mucosa/muscle layer and the oral mucosa layer when two-flap palatoplasty is performed while the control group will include participants who undergo two-flap palatoplasty without the use of collagen graft

Eligibility

Sex/Gender
ALL
Age
12 Months to 6 Years
Healthy volunteers
No

Inclusion criteria

* Non-syndromic cleft palate * Must be between nine months to two years * Must have not previously had cleft palate surgery * Must consent to participate in the study

Exclusion criteria

* All blood dyscrasias * All connective tissue dysfunctions

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with postoperative palatal fistula24 hours post operativelyPalatal fistula will be defined as a patency between the oral and nasal cavities developing postoperatively anywhere along the primary or secondary palate

Secondary

MeasureTime frameDescription
Number of participants with wound dehiscence24 hours post operativelyWound dehiscence will be defined as partial or total separation of previously approximated and sutured surgical wound edges with or without palatal fistula formation.
Number of participants with surgical site inflammation24 hours post operativelySurgical site inflammation will be defined as tenderness, redness, swelling and/or differential warmth from surgical site.
Number of participants with surgical site infection24 hours post operativelySurgical site infection will be defined as tenderness and purulent discharge and/or foul smelling odor from surgical site
Surgeon satisfactionwithin the first 24 hours post operativelySurgeon satisfaction will assess surgeons' opinion on surgery time (normal/ extended), difficulty of procedure (not difficult/ increased difficulty) and inadvertent tearing of the nasal mucosa (absent/ present).

Countries

Nigeria

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026