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Cleft Orthognathic Surgery Versus Distraction Osteogenesis - Which is Better?

NCT00930124 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2011-09-13

No results posted yet for this study

Summary

Cleft lip and palate patients normally present with a sunken face due to collapse in the middle part of the face and inability of the upper and lower teeth to meet during chewing. This situation constitutes a serious aesthetic and mastication problem. A single surgical operation known as orthognathic surgery was traditionally performed to move the upper jaw forward to a more normal position and allow chewing function to be regained. However, due to scar tissue from the original surgical repair of the cleft palate, this procedure is known to be unstable causing bone to rapidly go back to its original position. A new concept of moving the upper jaw bone gradually by 1mm per day using a special device attached to the bone called distraction osteogenesis was established in 1996. Animal studies have shown that this technique can produce stable results with minimal relapse. The feasibility of correcting cleft deformities by gradual distraction has been confirmed by our own clinical studies. The aim of this study (which is the first of its kind) is to conduct a prospective randomized controlled study and compare the treatment outcomes of the current standard (orthognathic surgery) with distraction osteogenesis (gradual bone movement). The objectives focus on four aspects: morbidity, stability, speech function and psychological impact. The results from this study will clarify several clinical dilemmas in decision making when choosing whether to use orthognathic surgery or distraction osteogenesis in the treatment of cleft lip and palate patients. In addition, it will also inform our multidisciplinary research team to improve the total care of the cleft lip and palate patients.

Gradual bone distraction of the midface in cleft palate patients is more stable, less detrimental to speech, and no more troublesome to the patient than conventional osteotomy and bone transposition (orthognathic surgery).

Conditions

  • Cleft Lip and Palate
  • Maxillary Hypoplasia

Interventions

PROCEDURE

Orthognathic surgery

Patients with moderate maxillary hypoplasia needing an advancement of 4-10mm

PROCEDURE

Distraction osteogenesis

Sponsors & Collaborators

  • The University of Hong Kong

    lead OTHER

Principal Investigators

  • Lim K Cheung, BDS, PhD · The University of Hong Kong

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
16 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2002-06-30
Primary Completion
2004-10-31
Completion
2008-01-31

Countries

  • Hong Kong

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00930124 on ClinicalTrials.gov