ClinicalTrials.gg
CompletedNCT02884765BCFxUpdated Jul 16, 2024

Bilateral Condylar Fractures Registry

An observational study in Bilateral Condylar Fracture of the Mandible, sponsored by AO Clinical Investigation and Publishing Documentation. Completed at 21 sites in 14 countries. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2024-07-16.

Sponsored by AO Clinical Investigation and Publishing Documentation · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
227
Ages
18 Years to 90 Years
Sex
All
01

Study summary

Prospective data will be collected in approximately 250 patients sustaining BCFx with or without any additional fracture(s) of the symphysis. Patients will be followed according to the standard (routine) at approximately 6 weeks and 3 months after the treatment. Data collection will include fracture details (i.e. classification, mechanism of injury), treatment details, functional and patient-reported outcomes, and anticipated or procedure-related adverse events (i.e. complications).

Read the detailed description

Fractures of the condyles occur in around one third of patients sustaining a mandibular fracture. Bilateral fractures are reported in around one fifth to one third of all fractures of the mandibular condyles and are often combined with other fractures of the mandible or facial skeleton.

The treatment of condylar fractures, and in particular of bilateral condylar fractures (BCFx), is complex due to many different fracture patterns, surgeon's preferences, local constraints of the health care system and patient characteristics. Briefly, BCFx can be treated using either closed treatment (CTx) (e.g. intermaxillary fixation [IMF] and/or functional therapy) or surgical treatment (i.e. open reduction and internal fixation [ORIF]) in both fractures, or a combination of closed treatment and ORIF. The relationship of these treatments with the final outcome remains elusive, since the available literature does not report specific data for patients sustaining BCFx and has ignored or inadequately reported patient-reported outcomes. Consequently there is a lack of clinical evidence to assist the decision-making process.

Therefore, the purpose of this registry is to collect data in a standardized manner regarding the treatment, the clinical and the patient-oriented outcomes, and the complications of BCFx.

02

Conditions studied

  • Bilateral Condylar Fracture of the Mandible

Browse trials for

Keywords

  • mandibular condyle
  • subcondylar
  • mandible
  • fracture
03

In context

Fractures, Bone

723 studies on the registry are indexed under Fractures, Bone; 114 are open to participants now.

This study's enrollment of 227 is above the median of 130 across 239 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

AO Clinical Investigation and Publishing Documentation is the lead sponsor of 50 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Consecutive patients sustaining a bilateral condylar fracture of the mandible.

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

  • Age 18 to 90 years at the time of the fracture
  • Diagnosis of bilateral condylar fracture of the mandible with or without a concomitant fracture of the symphysis
  • Dentition: Patients must have enough maxillary and mandibular teeth present to identify proper occlusion

Exclusion criteria

Exclusion Criteria:

  • Unilateral condylar fracture
  • Additional maxillary fracture(s)
  • Polytrauma (i.e. life threatening condition)
  • Patients being treated with antiresorptive drugs at the time of inclusion or during their participation in the registry
  • Pregnancy
  • Prisoner
  • Participation in any other medical device or medicinal product study within the previous month that could influence the results of the present registry
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
227 participants (actual)
Target follow-up
3 Months
Patient registry
Yes

Groups and cohorts

  • Bicondylar Fracture

    Patients presenting a bilateral condylar fracture of the mandible with or without additional symphyseal fracture. Bilateral condylar fractures will be treated non-surgical, surgical or combining both.

    Procedure: Non-surgical · Procedure: Non-surgical / Surgical · Procedure: Surgical

Interventions

  • ProcedureNon-surgical

    Non-surgical treatment in both condylar fractures

  • ProcedureNon-surgical / Surgical

    Non-surgical treatment in one condylar fracture and surgical treatment of the contralateral fracture

  • ProcedureSurgical

    Surgical treatment in both condylar fractures

06

What researchers measure

Primary outcomes

  1. Mandibular movements (mobility index)

    * Interincisal opening/maximal opening is defined as distance in millimeters between the edges of the incisors of the mandibular and the maxillary bone. * Lateral movements: With the mandible slightly open, it is defined as the distance in millimeters from the labioincisal embrasure between the central incisors to the labioincisal embrasure of the mandibular incisors * Protrusive movement: With the mandible slightly open, it is defined as the distance in millimeters between the incisal edges of the maxillary central incisor to the mandibular central incisor. Depending on the score, the mobility index will be calculated as follow: * 0 points: normal mandibular mobility * 1 - 4 points: slightly impaired mobility * 5 - 20 points: severely impaired mobility

    Time frame: 3 months

Other outcomes

  1. Mandible dysfunction (Helkimo Index)

    Time frame: 6 weeks / 3 months

  2. Clinical evaluation of the occlusion status

    * Normal for the patient * Abnormal for the patient (anterior open bite / crossbite / lateral open bite in the premolar area / lateral open bite in the mola area)

    Time frame: 6 weeks / 3 months

  3. Pain (numeric rating scale)

    Time frame: 6 weeks / 3 months

07

Study locations

21 sites
  • University of Kentucky Chandler Medical Center
    Lexington, Kentucky, United States
  • University of Louisville
    Louisville, Kentucky, United States
  • University of Texas Health Science Center at San Antonio
    San Antonio, Texas 78229-3900, United States
  • Helsinki University Hospital
    Helsinki, 00029, Finland
  • Universitaetsklinikum Eppendorf
    Hamburg, Germany
  • LMU - Klinikum der Universität München
    Munich, Germany
  • Hospital Sungai Buloh
    Sungai Buloh, Malaysia
  • Hospital General de Especialidades
    Campeche, Mexico
  • Hospital Trauma y Ortopedia Lomas Verdes
    Mexico City, Mexico
  • Eramus MC
    Rotterdam, Netherlands
  • Mayo Hospital Lahore
    Lahore, Pakistan
  • University Medical Centre Ljubljana
    Ljubljana, Slovenia
  • King Edward VIII Hospital
    Durban, South Africa
  • Hospital Vall d' Hebron
    Barcelona, Catalonia, Spain
  • 12 de Octubre University Hospital
    Madrid, Spain
  • University Hospital La Paz de Madrid
    Madrid, Spain
  • Universitätsspital Basel
    Basel, Switzerland
  • Universitätsspital Zürich
    Zürich, Switzerland
  • National Cheng Kung University Hospital
    Tainan, Taiwan
  • Lviv Regional Clinical Hospital
    Lviv, Ukraine
  • Hospital Maciel de Montevideo
    Montevideo, Uruguay
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2017 to primary completion in Mar 2023, 74 months.

Of 66 non-industry observational studies under Fractures, Bone, half reached primary completion within 43 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 88. This study's 74 months is above that.

Counting every sponsor, half of 86 studies reached it within 46 months; a quarter within 20 and three quarters within 124.

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

Registered
Aug 22, 2016
First posted
Aug 31, 2016
StartActual
Jan 2017
Primary completionActual
Mar 2023
CompletionActual
Dec 2023
Last update
Jul 16, 2024
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 Jul 16, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02884765
Lead sponsor
AO Clinical Investigation and Publishing Documentation
Collaborators
AOCMF
Responsible party
Sponsor
First posted
Aug 31, 2016
Start date
Jan 2017
Primary completion
Mar 2023
Completion
Dec 2023
Last update
Jul 16, 2024

Study contacts

Edward Ellis 3rd, DDS MS
principal investigator · University of Texas

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion