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CompletedNCT02283528HybridUpdated Jan 14, 2019Results posted

A Comparison of Stryker Hybrid Arch Bars

An interventional study of Stryker Hybrid and Erich in Fracture Mandible, sponsored by Emory University. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-01-14.

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

Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Patients who sustain a fracture of the lower jaw are typically treated by wiring the teeth together or using small titanium plates and screws to fix the fracture. With either technique the upper and lower teeth are held together to ensure that the fracture is held in the correct position during healing (for closed reduction) or while the plate and screws are applied (for open reduction).

The teeth can be held together using Erich arch bars which are a type of braces that are temporarily wired to the existing teeth. These stay in place for 6 weeks until the fracture has healed even though the patient is able to open his mouth immediately after the surgery is complete. The alternative to the traditional Erich arch bars is a relatively new type of arch bar (Stryker Hybrid) that is screwed to the jaw bone rather than wired to the teeth. The purpose of this study is to compare the two types of arch bars in terms of the speed with which they can be applied as well as any difference in fracture healing

02

Conditions studied

  • Fracture Mandible

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03

In context

Mandibular Fractures

84 studies on the registry are indexed under Mandibular Fractures; 20 are open to participants now.

This study's enrollment of 50 is above the median of 22 across 64 interventional studies indexed under Mandibular Fractures.

Browse Mandibular Fractures studies →

Lead sponsor

Emory University is the lead sponsor of 1,405 studies on the registry; 233 are open to participants now.

Of its 233 completed or terminated interventional studies of FDA-regulated products, 176 (76%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Mandible fracture involving subcondyle, ramus, angle, body, parasymphysis and symphysis
  2. Age 18 years - 90 years
  3. Ability to give informed consent
  4. Minimum 6 weeks follow-up
  5. Pre and post-operative panoramic xrays

Exclusion criteria

Exclusion Criteria:

  1. Comminuted fractures
  2. Infected fractures
  3. Previously treated fractures
  4. Complete edentulism
  5. Gun shot wounds
  6. Pregnancy or breast feeding
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Study design

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

Study arms

  • Experimental
    Hybrid

    Placement of Hybrid arch bars for open or closed reduction of mandible fractures

    Device: Stryker Hybrid

  • Active comparator
    Erich

    Placement of Erich archbars for open or closed reduction of mandible fractures

    Device: Erich

Interventions

  • DeviceStryker Hybrid

    Place Hybrid arch bars

  • DeviceErich

    Control group is Erich arch bars

06

What researchers measure

Primary outcomes

  1. Time to Place Archbars

    Time taken to place archbars

    Time frame: During initial admission and surgery

Secondary outcomes

  1. Number of Participants With Fracture Healing at 6 Weeks

    Radiographic healing

    Time frame: 6 weeks

  2. Number of Participants With Complications Including Loosening of Archbars, Loosening of MMF, or Damage to Adjacent Teeth and Structures

    assess operative and post-operative complications to include loosening of archbars, loosening of MMF if stratified to closed reduction and damage to adjacent teeth and structures

    Time frame: up to 6 weeks post operatively

07

Results

Posted Jan 14, 2019

Participant flow

Participant flow — Overall Study
MilestoneHybridErich
Started2624
Completed2624
Not completed00

Outcome measures

PrimaryTime to Place Archbars

Time taken to place archbars

Time frame:
During initial admission and surgery
Reported as:
Mean · minutes
Time to Place Archbars
minutesHybridErich
Time to Place Archbars14.07 ± 8.437.29 ± 15.1
SecondaryNumber of Participants With Fracture Healing at 6 Weeks

Radiographic healing

Time frame:
6 weeks
Reported as:
Count of participants · Participants
Number of Participants With Fracture Healing at 6 Weeks
ParticipantsHybridErich
Number of Participants With Fracture Healing at 6 Weeks1818
SecondaryNumber of Participants With Complications Including Loosening of Archbars, Loosening of MMF, or Damage to Adjacent Teeth and Structures

assess operative and post-operative complications to include loosening of archbars, loosening of MMF if stratified to closed reduction and damage to adjacent teeth and structures

Time frame:
up to 6 weeks post operatively
Reported as:
Count of participants · Participants
Number of Participants With Complications Including Loosening of Archbars, Loosening of MMF, or Damage to Adjacent Teeth and Structures
ParticipantsHybridErich
Number of Participants With Complications Including Loosening of Archbars, Loosening of MMF, or Damage to Adjacent Teeth and Structures50

Adverse events

Collected over 6 weeks post baseline. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Hybrid0/26 (0%)0/26 (0%)0/26 (0%)
Erich0/24 (0%)0/24 (0%)0/24 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)HybridErichTotal
<=18 years000
Between 18 and 65 years262450
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)HybridErichTotal
Female448
Male222042
Race (NIH/OMB)
Race (NIH/OMB)(Participants)HybridErichTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American211738
White5712
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)HybridErichTotal
United States262450
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Study locations

1 site
  • Grady Memorial Hospital
    Atlanta, Georgia, United States
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References and documents

Study documents

  • Study protocol · Jan 27, 2015
  • Statistical analysis plan · Nov 23, 2018

Documents are hosted by the registry — open the source record to download them.

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of May 2015, a primary completion of Dec 2017 and a completion of Dec 2017. It does not say whether these dates are actual or estimated.

Results were first posted in Jan 2019, 1 year after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 25, 2014
First posted
Nov 5, 2014
Start
May 2015
Primary completionActual
Dec 21, 2017
CompletionActual
Dec 21, 2017
Results first posted
Jan 14, 2019
Last update
Jan 14, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 14, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02283528
Lead sponsor
Emory University
Responsible party
Gary F Bouloux MD, DDS, MDSc, FRACDS, FRACDS (Associate Professor, Emory University) — Principal investigator
First posted
Nov 5, 2014
Start date
May 2015
Primary completion
Dec 21, 2017
Completion
Dec 21, 2017
Results posted
Jan 14, 2019
Last update
Jan 14, 2019

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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