- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04706182
Platelet-rich Fibrin and Grooving for Sagittal Split Osteotomy
Neurosensory Outcomes With Platelet-Rich Fibrin and Proximal Segment Grooving in Sagittal Split Osteotomy: A Randomized Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Jesse T Han, DDS, MD
- Phone Number: 206-540-9857
- Email: jessehan@uw.edu
Study Contact Backup
- Name: Thomas B Dodson, DMD, MPH
- Email: tbdodson@uw.edu
Study Locations
-
-
Washington
-
Seattle, Washington, United States, 98101
- Recruiting
- Dale S. Bloomquist, DDS, MS
-
Contact:
- Dale S Bloomquist, DDS, MS
- Email: daleb@uw.edu
-
Contact:
- Jesse T Han, DDS, MD
- Email: jessehan@uw.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Inclusion criteria include patients ages 18 and older, male or female, with a diagnosis of dentofacial deformity and/or OSA who will undergo BSSO.
Exclusion Criteria:
Exclusion criteria include patients with a history of previous mandibular surgery and preoperative neurosensory dysfunction of the trigeminal nerve. Other exclusion criteria are patients without capacity to consent for themselves or unable to read the consent form. Subjects who have conditions which may impair healing (such those on bisphosphonates treatments, blood thinners, corticosteroids, chemotherapy, etc.) will be excluded from participation in the research.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Combined PRF and PSG
|
Platelet rich fibrin (PRF) serves as a structural reservoir of cytokines such as platelet-derived growth factor (PDGF), transforming growth factor (TGF-b), insulin-like growth factor (IGF), platelet factor 4 (PF4) and vascular endothelial growth factor (VEGF) which aids in healing and preventing infection.
PRF will be prepared as recommended by the manufacturer (Intra-Lock International) by centrifuging 20 mL of the subject's venous blood for 12 minutes at 2700 rpm, followed by compression.
The fibrin clot will then be applied to the SSO site prior to fixation.
The blood draw for the PRF will be performed approximately 15 minutes prior to fixation of the mandible.
20 mL will be drawn for each PRF side treated.
The blood venous draw will be from the subject's arm or from an existing intra-venous line.
Proximal segment grooving is a mechanical method to create additional space within the inferior alveolar canal to allow the IAN to rest without compression or trauma.
The surgeon uses a round or acrylic bur to cautiously remove any bony spicules, and remove cancellous bone in the proximal mandibular segment.
PSG will be done by using an acrylic round bur on a surgical handpiece to remove 3 to 4 mm of cancellous bone where the IAN will passively rest into prior to fixation.
|
Experimental: Only PRF
|
Platelet rich fibrin (PRF) serves as a structural reservoir of cytokines such as platelet-derived growth factor (PDGF), transforming growth factor (TGF-b), insulin-like growth factor (IGF), platelet factor 4 (PF4) and vascular endothelial growth factor (VEGF) which aids in healing and preventing infection.
PRF will be prepared as recommended by the manufacturer (Intra-Lock International) by centrifuging 20 mL of the subject's venous blood for 12 minutes at 2700 rpm, followed by compression.
The fibrin clot will then be applied to the SSO site prior to fixation.
The blood draw for the PRF will be performed approximately 15 minutes prior to fixation of the mandible.
20 mL will be drawn for each PRF side treated.
The blood venous draw will be from the subject's arm or from an existing intra-venous line.
|
Experimental: Only PSG
|
Proximal segment grooving is a mechanical method to create additional space within the inferior alveolar canal to allow the IAN to rest without compression or trauma.
The surgeon uses a round or acrylic bur to cautiously remove any bony spicules, and remove cancellous bone in the proximal mandibular segment.
PSG will be done by using an acrylic round bur on a surgical handpiece to remove 3 to 4 mm of cancellous bone where the IAN will passively rest into prior to fixation.
|
No Intervention: Control (no treatment)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Functional sensory recovery (FSR)
Time Frame: 1 year postoperative
|
Adopted by the British Medical Research Council (MRC) scale, the primary outcome will be FSR, as defined as static 2-point discrimination less than 20 mm and superficial pain/tactile sensation without over-reaction on exam.
Neurosensory parameters assessed will be Level A: static light touch, brush stroke direction and static 2-point discrimination; Level B: tensile light touch, using von Frey's hairs; and Level C: pinprick sensation (pain) and temperature.
|
1 year postoperative
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Subjective inferior alveolar nerve (IAN) function
Time Frame: 1 year postoperative
|
Subjective IAN function will be measured using a visual analogue scale (VAS) and recorded as a continuous variable from 0-10.
A score of 0 will represent anesthesia, 1-9 hypoesthesia and 10 normal.
|
1 year postoperative
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jesse Han, DDS, MD, University of Washington
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- STUDY00011198
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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