The role of double-step advancement genioplasty and bilateral coronoidectomy in Nager Syndrome: A case report.

Autor: Trindade PAK; Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil., Bueno PM; Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil., Scomparin L; Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil., Marzano-Rodrigues MN; Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil., Trindade-Suedam IK; Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil.; Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry [Spec Care Dentist] 2021 Jul; Vol. 41 (4), pp. 512-518. Date of Electronic Publication: 2021 Mar 12.
DOI: 10.1111/scd.12585
Abstrakt: Aim: To report the surgical management of bilateral mandibular coronoid processes hyperplasia and mandibular retrognathism associated with trismus and convex facial profile in an individual diagnosed with Nager syndrome (NS).
Case Report: A 21 years old female was referred to the Department of Oral and Maxillofacial Surgery, presenting limited mouth opening and an unpleasant convex facial profile. The tomography exhibited hyperplasia of mandibular coronoid processes with no evidence of intracapsular ankylosis of the temporomandibular joint. The treatment objectives were to increase mouth opening through a bilateral coronoidectomy and gain chin projection using the double-step advancement genioplasty technique. The 9-month postoperative follow-up revealed a 22.22% (6 mm) gain in jaw opening, improved masticatory function, and facial profile.
Conclusions: The NS is a complex craniofacial anomaly due to its clinical heterogeneity. Thus, treatment planning must be done individually, considering the patients' main complaints and respecting the limitations regarding anatomy and availability of proper surgical materials. In the present case, a bilateral coronoidectomy associated with immediate physiotherapy improved the patient's mouth opening, and the double-step genioplasty promoted a much more significant chin advancement than would be obtained with the single-step traditional osteotomy.
(© 2021 Special Care Dentistry Association and Wiley Periodicals LLC.)
Databáze: MEDLINE
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