Evaluation of maxillary permanent molars in patients with syndromic craniosynostosis after monobloc osteotomy and midface advancement with rigid external distraction (RED)

Apert syndrome: craniofacial challenges and clinical implications

Apert syndrome is a rare acro-cephalo-syndactyly syndrome characterised by craniosynostosis, severe syndactyly of hands and feet, and dysmorphic facial features. It demonstrates autosomal dominant inheritance assigned to mutations in the fibroblast growth factor receptor gene, as a result of which signals are not received to produce necessary fibrous material necessary for normal cranial sutures. Deformities are generally cosmetic but can affect various functions such as hearing, visual abnormalities, swallowing, writing, etc, so a multidisciplinary approach is needed for their management.Presently described is a case of a male in his late adolescence who was medically diagnosed with Apert syndrome at birth. Physical appearance and dental examination of the patient included acrocephaly, prominent forehead, ocular hypertelorism, proptosis, short and broad nose, pseudo-prognathism, dental crowding and ectopia, maxillary hypoplasia, low hairline, webbed neck, pectus excavatum and severe bilateral syndactyly of hands and feet.

A Survey of Orthodontic Treatment in Team Care for Patients With Syndromic Craniosynostosis in Japan

OBJECTIVE

To understand the actual condition of orthodontic treatment in team care for patients with syndromic craniosynostosis (SCS) in Japan.

DESIGN

A nationwide collaborative survey.

SETTING

Twenty-four orthodontic clinics in Japan.

PATIENTS

A total of 246 patients with SCS.

MAIN OUTCOME MEASURE

Treatment history was examined based on orthodontic records using common survey sheets.

RESULTS

Most patients first visited the orthodontic clinic in the deciduous or mixed dentition phase. Midface advancement was performed without visiting the orthodontic clinic in about a quarter of the patients, and more than a half of the patients underwent "surgery-first" midface advancement. First-phase orthodontic treatment was carried out in about a half of the patients, and maxillary expansion and protraction were performed. Tooth extraction was required in about two-thirds of patients, and the extraction of maxillary teeth was required in most patients. Tooth abnormalities were found in 37.8% of patients, and abnormalities of maxillary molars were frequently (58.3%) found in patients who had undergone midface surgery below the age of 6 years.

CONCLUSIONS

Many patients underwent "surgery-first" midface advancement, and visiting the orthodontic clinic at least before advancement was considered desirable. First-phase orthodontic treatment should be performed considering the burden of care. Midface advancement below the age of 6 years had a high risk of injury to the maxillary molars. This survey is considered useful for improving orthodontic treatment in team care of patients with SCS.

External craniofacial osteodistraction in complex craniosynostoses

PURPOSE

The use of distraction osteogenesis is the first option in the treatment of craniofacial hypoplasia. Both internal craniofacial distractor devices (ICDD) and external craniofacial distractor devices (ECDD) can improve visual and respiratory functions in patients with craniofacial synostosis significantly. They also improve the cosmetic outcome.

DISCUSSION

We reviewed the pertinent literature concerning the use of ECDD in complex craniostenosis. Surgical data as well as quality of life notes were analyzed and compared with those reported for ICDD.

CONCLUSION

The advantage of ECDD compared with ICDD is the easier application and postoperative management as compared with ICDD, with comparable results for extent and quality of distraction osteogenesis. The disadvantage is the quality of life which most authors report is worse if compared to ICDD during the distraction osteogenesis period.