NCT01487018

Brief Summary

Treatment of late deformities following fractures of the orbitozygomaticomaxillary complex can be considered a formidable challenge, even to the skilled surgeon. However, the development of Computer-Assisted Navigation technology Offers new opportunities in the treatment of such deformities. With the help of navigation system,pre- and intraoperatively,the objective of any supporting medical device for reconstruction of the orbitozygomaticomaxillary complex would be visualization of the real and desired positions of the zygoma. In this randomized controlled trial, the investigators would like to evaluate the feasibility and accuracy of a new method for planning and realizing zygomatic osteotomies in cases of established post-traumatic deformities using computer assisted navigation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
103

participants targeted

Target at P25-P50 for phase_3

Timeline
Completed

Started Dec 2011

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 29, 2011

Completed
2 days until next milestone

Study Start

First participant enrolled

December 1, 2011

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 7, 2011

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2015

Completed
Last Updated

October 21, 2015

Status Verified

October 1, 2015

Enrollment Period

3.2 years

First QC Date

November 29, 2011

Last Update Submit

October 20, 2015

Conditions

Keywords

Zygomatic FracturesSurgery, Computer-AssistedFacial Asymmetry

Outcome Measures

Primary Outcomes (1)

  • Zygomatic Symmetry

    Measurement the zygomatic symmetry of postoperative CT scan

    1 month

Secondary Outcomes (2)

  • Accuracy evaluation of CT image

    1 month

  • Facial Symmetry

    3 month

Study Arms (2)

Navigation Surgery

EXPERIMENTAL

To evaluate the feasibility and accuracy of a new method for planning and realizing zygomatic osteotomies in cases of established post-traumatic deformities using computer assisted navigation.

Procedure: Navigation Surgery

Traditional Surgery

ACTIVE COMPARATOR

To compare with the experimental arm.

Procedure: Traditional Surgery

Interventions

To evaluate the feasibility and accuracy of a new method for planning and realizing zygomatic osteotomies in cases of established post-traumatic deformities using computer assisted navigation.

Also known as: Computer-Aided Surgery, Surgical Navigation
Navigation Surgery

To compare with the experamental group.

Also known as: Control Group
Traditional Surgery

Eligibility Criteria

Age16 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • post-traumatic unilateral deformities of the zygomaticomaxillary complex
  • The interval after the primary injury should be more than 21 days
  • Meet the operation indication
  • Voluntarily join this study with informed consents

You may not qualify if:

  • Obviously asymmetric of craniofacial structure
  • Poor compliance of patient
  • Any other condition that do not fit to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology

Beijing, 100081, China

Location

MeSH Terms

Conditions

Zygomatic FracturesFacial Asymmetry

Interventions

Surgery, Computer-AssistedControl Groups

Condition Hierarchy (Ancestors)

Maxillofacial InjuriesFacial InjuriesCraniocerebral TraumaTrauma, Nervous SystemNervous System DiseasesSkull FracturesFractures, BoneWounds and InjuriesPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Surgical Procedures, OperativeEpidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Study Officials

  • Yi Zhang, Professor

    Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology

Study Record Dates

First Submitted

November 29, 2011

First Posted

December 7, 2011

Study Start

December 1, 2011

Primary Completion

March 1, 2015

Study Completion

July 1, 2015

Last Updated

October 21, 2015

Record last verified: 2015-10

Locations